POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 1 of 12
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
POTASSIUM NITRATE
SYNONYMS
K-N-O3, nitre, niter, "nitric acid, potassium salt", "saltpeter vicknite", "nitrate of
potash", Merck, AnalaR, 10214, GPR, 29638, "Ikon potassium nitrate prill", "Ikon
potassium nitrate fines"
PROPER SHIPPING NAME
POTASSIUM NITRATE
PRODUCT USE
Used as a laboratory reagent in analytical chemistry. Used in fertiliser; in toothpaste;
fireworks, matches, gun powder and explosives; in glass manufacture; pickling meats;
tempering steel; and tobacco treatment.
SUPPLIER
Company: Quantum Chemicals Pty Ltd
Address:
70 Quantum Close
Quantum Industrial Park
Dandenong South VIC 3175
Australia
Telephone: 1300 782 688
Emergency Tel: 1300 131 001
Fax: 1300 782 699
HAZARD RATINGS
Flammability
Toxicity
Body Contact
Reactivity
Chronic
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 2 of 12
Section 2 - HAZARDS IDENTIFICATION
STATEMENT OF HAZARDOUS NATURE
HAZARDOUS SUBSTANCE. DANGEROUS GOODS. According to the Criteria of NOHSC,
and the ADG Code.
POISONS SCHEDULE
None
RISK SAFETY
Contact with combustible material may cause Keep away from combustible material.
fire.
Harmful if swallowed. Do not breathe dust.
Irritating to eyes. Avoid contact with eyes.
Toxic to aquatic organisms. Wear suitable protective clothing.
May produce discomfort of the respiratory system To clean the floor and all objects contaminated
and skin*. by this material, use water.
* (limited evidence). Keep away from food, drink and animal feeding
stuffs.
Take off immediately all contaminated clothing.
In case of contact with eyes, rinse with plenty
of water and contact Doctor or Poisons
Information Centre.
If swallowed, IMMEDIATELY contact Doctor or
Poisons Information Centre. (show this container
or label).
This material and its container must be disposed
of as hazardous waste.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
potassium nitrate 7757-79-1 >95
Section 4 - FIRST AID MEASURES
SWALLOWED
For advice, contact a Poisons Information Centre or a doctor.
路 IF SWALLOWED, REFER FOR MEDICAL ATTENTION, WHERE POSSIBLE, WITHOUT DELAY.
路 For advice, contact a Poisons Information Centre or a doctor.
Where Medical attention is not immediately available or where the patient is more than 15
minutes from a hospital or unless instructed otherwise:
路 Induce vomiting with fingers down the back of the of the throat, ONLY IF CONSCIOUS.
路 Lean patient forward or place on left side (head-down position if possible) to maintain
open airway and prevent aspiration.
NOTE: Wear a protective glove when inducing vomiting by mechanical means.
路 In the mean time, qualified first-aid personnel should treat the patient following
observation and employing supportive measures as indicated by the patient's condition.
路 If the services of a medical officer or medical doctor are readily available, the
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 3 of 12
Section 4 - FIRST AID MEASURES
patient should be placed in his/her care and a copy of the MSDS should be provided.
Further action will be the responsibility of the medical specialist.
路 If medical attention is not available on the worksite or surroundings send the patient
to a hospital together with a copy of the MSDS.
EYE
If this product comes in contact with the eyes:
路 Wash out immediately with fresh running water.
路 Ensure complete irrigation of the eye by keeping eyelids apart and away from eye and
moving the eyelids by occasionally lifting the upper and lower lids.
路 If pain persists or recurs seek medical attention.
路 Removal of contact lenses after an eye injury should only be undertaken by skilled
personnel.
SKIN
If skin contact occurs:
路 Immediately remove all contaminated clothing, including footwear
路 Flush skin and hair with running water (and soap if available).
路 Seek medical attention in event of irritation.
INHALED
路 If dust is inhaled, remove from contaminated area.
路 Encourage patient to blow nose to ensure clear passage of breathing.
路 If irritation or discomfort persists seek medical attention.
NOTES TO PHYSICIAN
The toxicity of nitrates and nitrites result from their vasodilating properties and their
propensity to form methaemoglobin.
路 Most produce a peak effect within 30 minutes.
路 Clinical signs of cyanosis appear before other symptoms because of the dark
pigmentation of methaemoglobin.
路 Initial attention should be directed towards improving oxygen delivery, with assisted
ventilation, if necessary. Hyperbaric oxygen has not demonstrated conclusive benefits.
路 Institute cardiac monitoring, especially in patients with coronary artery or pulmonary
disease.
路 Hypotension should respond to Trendelenburg's position and intravenous fluids;
otherwise dopamine may be needed.
路 Naloxone, glucose and thiamine should be given if a multiple ingestion is suspected.
路 Decontaminate using Ipecac Syrup for alert patients or lavage for obtunded patients who
present within 2-4 hours of ingestion.
路 Symptomatic patients with methaemoglobin levels over 30% should receive methylene
blue.(Cyanosis alone, is not an indication for treatment). The usual dose is 1-2 mg/kg of
a 1% solution (10 mg/ml) IV over 5 minutes; repeat, using the same dose if symptoms of
hypoxia fail to subside within 1 hour.
[Ellenhorn and Barceloux: Medical Toxicology]
BIOLOGICAL EXPOSURE INDEX - BEI
These represent the determinants observed in specimens collected from a healthy worker
who has been exposed at the Exposure Standard (ES or TLV):
Determinant Index Sampling Time Comments
1. Methaemoglobin in 1.5% of haemoglobin During or end of B, NS, SQ
blood shift
B: Background levels occur in specimens collected from subjects NOT exposed
NS: Non-specific determinant;also observed after exposure to other materials
SQ: Semi-quantitative determinant - Interpretation may be ambiguous; should be used as a
screening test or confirmatory test.
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 4 of 12
Section 5 - FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA
路 Water spray or fog - Flooding quantities only.
路 Foam.
路 BCF (where regulations permit).
路 Dry chemical Powder.
路 Carbon Dioxide.
FIRE FIGHTING
路 Alert Fire Brigade and tell them location and nature of hazard.
路 Wear breathing apparatus plus protective gloves.
路 Prevent, by any means available, spillage from entering drains or water courses.
路 Fight fire from a safe distance, with adequate cover.
路 Extinguishers should be used only by trained personnel.
路 Use water delivered as a fine spray to control fire and cool adjacent area.
路 Avoid spraying water onto liquid pools.
路 DO NOT approach containers suspected to be hot.
路 Cool fire exposed containers with water spray from a protected location.
路 If safe to do so, remove containers from path of fire.
路 If fire gets out of control withdraw personnel and warn against entry.
路 Equipment should be thoroughly decontaminated after use.
FIRE/EXPLOSION HAZARD
路 Will not burn but increases intensity of fire.
路 Heating may cause expansion or decomposition leading to violent rupture of containers.
路 Heat affected containers remain hazardous.
路 Contact with combustibles such as wood, paper, oil or finely divided metal may produce
spontaneous combustion or violent decomposition.
路 May emit irritating, poisonous or corrosive fumes.
Decomposition may produce toxic fumes of:
nitrogen oxides (NOx).
FIRE INCOMPATIBILITY
Oxidising agents as a class are not necessarily combustible themselves, but can increase
the risk and intensity of fire in many other substances.
HAZCHEM: 1[Z]
Personal Protective Equipment
Gloves, boots (chemical resistant).
Breathing apparatus - high vapour/dust levels only.
Section 6 - ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES
MINOR SPILLS
路 Clean up all spills immediately.
路 No smoking, naked lights, ignition sources.
路 Avoid all contact with any organic matter including fuel, solvents, sawdust, paper or
cloth and other incompatible materials, as ignition may result.
路 Avoid breathing dust or vapours and all contact with skin and eyes.
路 Control personal contact by using protective equipment.
路 Contain and absorb spill with dry sand, earth, inert material or vermiculite.
路 DO NOT use sawdust as fire may result.
路 Scoop up solid residues and seal in labelled drums for disposal.
路 Neutralise/decontaminate area.
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 5 of 12
Section 6 - ACCIDENTAL RELEASE MEASURES
MAJOR SPILLS
路 Clear area of personnel and move upwind.
路 Alert Fire Brigade and tell them location and nature of hazard.
路 Wear breathing apparatus and protective gloves.
路 Prevent, by any means available, spillage from entering drains or water courses.
路 No smoking, flames or ignition sources.
路 Increase ventilation.
路 Contain spill with sand, earth or other clean, inert materials.
路 NEVER USE organic absorbents such as sawdust, paper or cloth.
路 Use spark-free and explosion-proof equipment.
路 Collect any recoverable product into labelled containers for possible recycling.
路 Avoid contamination with organic matter to prevent subsequent fire and explosion.
路 DO NOT mix fresh with recovered material.
路 Collect residues and seal in labelled drums for disposal.
路 Wash area and prevent runoff into drains.
路 Decontaminate equipment and launder all protective clothing before storage and re-use.
路 If contamination of drains or waterways occurs advise emergency services.
PROTECTIVE ACTIONS FOR SPILL
PROTECTIVE ACTION ZONE
half
evacuation
downwind
direction
distance
down wind distance
wind isolation
distance
direction
half
evacuation downwind
INITIAL direction distance
ISOLATION
ZONE
From IERG (Canada/Australia)
Isolation Distance 25 metres
Downwind Protection Distance 100 metres
IERG Number 31
FOOTNOTES
1 PROTECTIVE ACTION ZONE is defined as the area in which people are at risk of harmful exposure. This zone
assumes that random changes in wind direction confines the vapour plume to an area within 30 degrees on
either side of the predominant wind direction, resulting in a crosswind protective action distance equal
to the downwind protective action distance.
2 PROTECTIVE ACTIONS should be initiated to the extent possible, beginning with those closest to the spill
and working away from the site in the downwind direction. Within the protective action zone a level of
vapour concentration may exist resulting in nearly all unprotected persons becoming incapacitated and
unable to take protective action and/or incurring serious or irreversible health effects.
3 INITIAL ISOLATION ZONE is determined as an area, including upwind of the incident, within which a high
probability of localised wind reversal may expose nearly all persons without appropriate protection to
life-threatening concentrations of the material.
4 SMALL SPILLS involve a leaking package of 200 litres (55 US gallons) or less, such as a drum (jerrican or
box with inner containers). Larger packages leaking less than 200 litres and compressed gas leaking from
a small cylinder are also considered "small spills".
LARGE SPILLS involve many small leaking packages or a leaking package of greater than 200 litres, such as
a cargo tank, portable tank or a "one-tonne" compressed gas cylinder.
5 Guide 140 is taken from the US DOT emergency response guide book.
6 IERG information is derived from CANUTEC - Transport Canada.
EMERGENCY RESPONSE PLANNING GUIDELINES (ERPG)
The maximum airborne concentration below which it is believed that nearly all individuals could be exposed
for up to one hour WITHOUT experiencing or developing
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 6 of 12
Section 6 - ACCIDENTAL RELEASE MEASURES
life-threatening health effects is:
potassium nitrate 500 mg/m鲁
irreversible or other serious effects or symptoms which could impair an individual's ability to take
protective action is:
potassium nitrate 20 mg/m鲁
other than mild, transient adverse effects without perceiving a clearly defined odour is:
potassium nitrate 3.5 mg/m鲁
The threshold concentration below which most people will experience no appreciable risk of health effects:
potassium nitrate 1 mg/m鲁
American Industrial Hygiene Association (AIHA)
Ingredients considered according to the following cutoffs
Very Toxic (T+) >= 0.1% Toxic (T) >= 3.0%
R50 >= 0.25% Corrosive (C) >= 5.0%
R51 >= 2.5%
else >= 10%
where percentage is percentage of ingredient found in the mixture
SAFE STORAGE WITH OTHER CLASSIFIED CHEMICALS
___________________________________________
X X X X 0 0
___________________________________________
+: May be stored together
O: May be stored together with specific preventions
X: Must not be stored together
Personal Protective Equipment advice is contained in Section 8 of the MSDS.
Section 7 - HANDLING AND STORAGE
PROCEDURE FOR HANDLING
路 Avoid personal contact and inhalation of dust, mist or vapours.
路 Provide adequate ventilation.
路 Always wear protective equipment and wash off any spillage from clothing.
路 Keep material away from light, heat, flammables or combustibles.
路 Keep cool, dry and away from incompatible materials.
路 Avoid physical damage to containers.
路 DO NOT repack or return unused portions to original containers. Withdraw only
sufficient amounts for immediate use.
路 Contamination can lead to decomposition leading to possible intense heat and fire.
路 When handling NEVER smoke, eat or drink.
路 Always wash hands with soap and water after handling.
路 Use only good occupational work practice.
路 Observe manufacturer's storing and handling directions.
SUITABLE CONTAINER
Packaging as recommended by manufacturer.
路 Check that containers are clearly labelled.
Glass container.
Glass carboy.
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 7 of 12
Section 7 - HANDLING AND STORAGE
Plastic container.
Polyethylene or polypropylene container.
STORAGE INCOMPATIBILITY
Segregate from reducing agents, strong acids,
organic substances, combustible materials, heavy metals, phosphides,
sodium acetate, lead nitrate, tartrates, trichloroethylene, shock and heat.
A mixture with calcium silicide is easily ignited and burns at very high
temperatures which is capable of initiating many high temperature
reactions. Mixtures of potassium nitrate with: titanium, antimony,
germanium or zirconium powders, antimony trisulfide, barium sulfide,
calcium sulfide, arsenic disulfide, titanium disulfide, germanium
monosulfide, molybdenum disulfide, powdered carbon, arsenic, white or red
phosphorus, boron phosphide, copper phosphides, sodium phosphinate, sodium
acetate, sodium thiosulfate, thorium dicarbide, aluminium, magnesium,
sodium or iron, chromium nitride: may explode or detonate on heating,
ignition or by shock.
STORAGE REQUIREMENTS
路 Store in original containers in an isolated/detached store away from other materials.
路 Keep containers securely sealed as supplied.
路 WARNING: Gradual decomposition during storage in sealed containers may lead to a large
pressure build-up and subsequent explosion.
路 No smoking, naked lights, heat or ignition sources.
路 Store under cover and away from sunlight.
路 Always store below 35 deg.C
路 Store away from flammable or combustible materials, debris and waste.
路 Store away from incompatible materials and foodstuffs containers.
路 DO NOT stack on wooden floors or wooden pallets.
路 Protect containers against physical damage.
路 Check regularly for spills and leaks.
路 Observe manufacturer's storage and handling recommendations.
路 Keep locked up.
路 Restrictions may apply on quantities and to other materials permitted in the same
location.
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE CONTROLS
Source Material TWA TWA STEL STEL Peak Peak TWA
ppm mg/m鲁 ppm mg/m鲁 ppm mg/m鲁 F/CC
_________________ __________________ ______ ______ ______ ______ ______ ______ _____
Australia Exposure potassium nitrate 10
Standards (Inspirable dust
(Not specified))
PERSONAL PROTECTION
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 8 of 12
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EYE
路 Safety glasses.
路 Safety glasses with side shields.
路 Chemical goggles.
路 Contact lenses may pose a special hazard; soft contact lenses may absorb and
concentrate irritants. A written policy document, describing the wearing of lens or
restrictions on use, should be created for each workplace or task. This should include a
review of lens absorption and adsorption for the class of chemicals in use and an account
of injury experience. Medical and first-aid personnel should be trained in their removal
and suitable equipment should be readily available. In the event of chemical exposure,
begin eye irrigation immediately and remove contact lens as soon as practicable. Lens
should be removed at the first signs of eye redness or irritation - lens should be
removed in a clean environment only after workers have washed hands thoroughly. [CDC
NIOSH Current Intelligence Bulletin 59].
HANDS/FEET
No special equipment needed when handling small quantities.
OTHERWISE: Wear chemical protective gloves, eg. PVC.
Safety footwear may be required.
OTHER
No special equipment needed when handling small quantities.
OTHERWISE:
路 Overalls.
路 Barrier cream.
路 Eyewash unit.
RESPIRATOR
Protection Factor Half- Face Respirator Full- Face Respirator Powered Air
Respirator
10 x ES P1 Air- line* -- PAPR- P1 -
50 x ES Air- line** P2 PAPR- P2
100 x ES - P3 -
Air- line* -
100+ x ES - Air- line** PAPR- P3
* - Negative pressure demand ** - Continuous flow.
The local concentration of material, quantity and conditions of use determine the type of
personal protective equipment required.
For further information consult site specific
CHEMWATCH data (if available), or your
Occupational Health and Safety Advisor.
ENGINEERING CONTROLS
General exhaust is adequate under normal operating conditions. If risk of overexposure
exists, wear SAA approved respirator. Correct fit is essential to obtain adequate
protection. Provide adequate ventilation in warehouse or closed storage areas. Air
contaminants generated in the workplace possess varying "escape" velocities which, in
turn, determine the "capture velocities" of fresh circulating air required to effectively
remove the contaminant.
Type of Contaminant: Air Speed:
solvent, vapours, degreasing etc., evaporating 0.25- 0.5 m/s (50- 100 f/min)
from tank (in still air)
aerosols, fumes from pouring operations, 0.5- 1 m/s (100- 200 f/min.)
intermittent container filling, low speed
conveyer transfers, welding, spray drift,
plating acid fumes, pickling (released at low
velocity into zone of active generation)
direct spray, spray painting in shallow 1- 2.5 m/s (200- 500 f/min)
booths, drum filling, conveyer loading,
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 9 of 12
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
crusher dusts, gas discharge (active
generation into zone of rapid air motion)
grinding, abrasive blasting, tumbling, high 2.5- 10 m/s (500- 2000 f/min.)
speed wheel generated dusts (released at high
initial velocity into zone of very high rapid
air motion).
Within each range the appropriate value depends on:
Lower end of the range Upper end of the range
1: Room air currents minimal or favourable to 1: Disturbing room air currents
capture
2: Contaminants of low toxicity or of nuisance 2: Contaminants of high toxicity
value only
3: Intermittent, low production. 3: High production, heavy use
4: Large hood or large air mass in motion 4: Small hood - local control only
Simple theory shows that air velocity falls rapidly with distance away from the opening
of a simple extraction pipe. Velocity generally decreases with the square of distance
from the extraction point (in simple cases). Therefore the air speed at the extraction
point should be adjusted, accordingly, after reference to distance from the contaminating
source. The air velocity at the extraction fan, for example, should be a minimum of 1-2
m/s (200-400 f/min.) for extraction of solvents generated in a tank 2 meters distant from
the extraction point. Other mechanical considerations, producing performance deficits
within the extraction apparatus, make it essential that theoretical air velocities are
multiplied by factors of 10 or more when extraction systems are installed or used.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE
Colourless odourless transparent prisms or white crystalline powder or crystals. Has a
cooling, pungent saline taste. Slightly hygroscopic. Oxidising agent. Soluble in water and
glycerine, insoluble in absolute alcohol. Solubility in water = 36% When tested to UNDG
34.4.2 Test 0.2 Test for oxidising liquids a 30% w/w aqueous solution was not a class 5.1
oxidiser. ref UNDGC 34.4.2.5.
PHYSICAL PROPERTIES
Solid.
Mixes with water.
Molecular Weight: 101.11 Boiling Range (掳C): 400 (decomposes)
Melting Range (掳C): 334 Specific Gravity (water=1): 2.11
Solubility in water (g/L): Miscible pH (as supplied): Not applicable
pH (1% solution): 7 Approx. Vapour Pressure (kPa): Negligible
Volatile Component (%vol): Not available Evaporation Rate: Non Volatile
Relative Vapour Density (air=1): Not available Flash Point (掳C): Not applicable
Lower Explosive Limit (%): Not applicable Upper Explosive Limit (%): Not applicable
Autoignition Temp (掳C): Not available Decomposition Temp (掳C): 400
State: Divided solid Viscosity: Not available
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
路 Presence of incompatible materials.
路 Unstable under normal storage, requires special storage conditions.
路 Prolonged exposure to heat above control temperature.
路 Presence of shock and/or friction.
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 10 of 12
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
路 Hazardous decomposition will occur.
Section 11 - TOXICOLOGICAL INFORMATION
POTENTIAL HEALTH EFFECTS
ACUTE HEALTH EFFECTS
SWALLOWED
The solid/dust is.
discomforting.
to the gastro-intestinal tract.
and.
may be.
harmful.
if swallowed.
EYE
The material is moderately discomforting.
to the eyes.
and is.
capable of causing a mild, temporary redness of the conjunctiva (similar to wind-burn),
temporary impairment of vision and/ or other transient eye damage/ ulceration.
SKIN
The material is moderately discomforting.
to the skin.
Open cuts, abraded or irritated skin should not be exposed to this material.
Prolonged exposure may cause.
skin reactions.
INHALED
The material is moderately discomforting.
to the upper respiratory tract.
and may be.
harmful.
if inhaled.
CHRONIC HEALTH EFFECTS
Principal routes of exposure are by accidental skin and eye contact and inhalation of
generated dusts.
TOXICITY AND IRRITATION
TOXICITY IRRITATION
Oral (rat) LD50: 3750 mg/kg Nil Reported
Oral (rabbit) LD50: 1901 mg/kg
Section 12 - ECOLOGICAL INFORMATION
The nitrates are of environmental concern because of their high water solubility and
consequent leaching, diffusion, and environmental mobility in soil and water. Nitrate can
contaminate groundwater to unacceptable levels. Nitrite is formed from nitrate or
ammonium ion by micro-organisms in soil, water, sewage and the alimentary tract. The
concern with nitrate in the environment is related to its conversion to nitrite.
Methaemoglobinaemia is caused following exposure to high levels of nitrite and produces
difficulties in oxygen transport in the blood. Thousands of cases involving poisoning of
infants, particularly in rural areas, have been reported as a result of drinking nitrate
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
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Section 12 - ECOLOGICAL INFORMATION
rich well-water.
Other concerns deriving from exposure to environmental nitrates relate to the production
of nitrosamines following the reaction of food nitrites and secondary amines. Other
nitroso-compounds may result following reaction with nitrites and amides, ureas,
carbamates and other nitrogenous compounds. Nitrosamines produce liver damage,
haemorrhagic lung lesions, convulsions and coma in rats, and teratogenic effects in
experimental animals.
The N-nitroso class of compounds include potent carcinogens and mutagens: induction of
tumors by single doses of N-nitroso compounds testify to this.
Section 13 - DISPOSAL CONSIDERATIONS
路 Recycle wherever possible. Special hazard may exist - specialist advice may be
required.
路 Consult manufacturer for recycling options.
路 Consult State Land Waste Management Authority for disposal.
路 Bury or incinerate residue at an approved site.
路 Decontaminate empty containers. Observe all label safeguards until containers are
cleaned and destroyed.
路 Puncture containers to prevent re-use and bury at an authorised landfill.
For small quantities: Acidify a 3% solution to pH 2 with sulfuric acid.
Gradually add an excess of aqueous sodium bisulfite with stirring at room
temperature. If no reaction is observed following addition of a further
10% sodium bisulfite (indicated by temperature increase) add more acid.
Section 14 - TRANSPORTATION INFORMATION
Labels Required: OXIDIZING AGENT
HAZCHEM: 1[Z]
UNDG:
Dangerous Goods 5.1 Subrisk: None
Class:
UN Number: 1486 Packing Group: III
Shipping Name:POTASSIUM NITRATE
Air Transport IATA:
ICAO/IATA Class: 5.1 ICAO/IATA Subrisk: None
UN/ID Number: 1486 Packing Group: III
ERG Code: 5L
Shipping Name: Potassium nitrate
Maritime Transport IMDG:
IMDG Class: 5.1 IMDG Subrisk: None
UN Number: 1486 Packing Group: III
EMS Number: F- A, S- Q
Shipping Name: POTASSIUM NITRATE
POTASSIUM NITRATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Jun-2006 CHEMWATCH 1486
NC317TCP CD 2006/4 Page 12 of 12
Section 15 - REGULATORY INFORMATION
POISONS SCHEDULE: None
REGULATIONS
potassium nitrate (CAS: 7757-79-1) is found on the following regulatory lists;
Australia - Australia New Zealand Food Standards Code - Food Additives - Schedule 1
Permitted uses of food additives by food type
Australia - Australian Capital Territory Environment Protection Regulation
Pollutants entering waterways - Agricultural uses (Stock)
Australia - Western Australia Hazardous Substances Prohibited for Specified Uses or
Methods of Handling
Australia Exposure Standards
Australia Inventory of Chemical Substances (AICS)
International Council of Chemical Associations (ICCA) - High Production Volume List
OECD Representative List of High Production Volume (HPV) Chemicals
Section 16 - OTHER INFORMATION
REPRODUCTIVE HEALTH GUIDELINES
These exposure guidelines have been derived from a screening level of risk assessment and
should not be construed as unequivocally safe limits. ORGS represent an 8-hour time
-weighted average unless specified otherwise.
CR = Cancer Risk/10000; UF = Uncertainty factor:
TLV believed to be adequate to protect reproductive health:
LOD: Limit of detection
Toxic endpoints have also been identified as:
D = Developmental; R = Reproductive; TC = Transplacental carcinogen
Jankovic J., Drake F.: A Screening Method for Occupational Reproductive
American Industrial Hygiene Association Journal 57: 641-649 (1996).
This document is copyright. Apart from any fair dealing for the purposes of private study, research, review or
criticism, as permitted under the Copyright Act, no part may be reproduced by any process without written permission
from CHEMWATCH. TEL (+61 3) 9572 4700.
Issue Date: 16-Jun-2006
Print Date: 4-Jan-2007
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