SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 1 of 9
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
SODIUM BICARBONATE
SYNONYMS
Na-H-CO3, C-H-O3.Na, "baking soda", "bicarbonate of soda", "carbonic acid, monosodium
salt", "monosodium carbonate", "sodium acid carbonate", "soda mint", "Food Additive 500"
PRODUCT USE
Manufacture of many sodium salts; source of carbon dioxide; component of dry powder fire
extinguishers, and also Soda- Acid extinguishers. Food additive 500; ingredient of baking
powder, effervescent salines and beverages. A mild alkali, used medicinally in low doses
in antacid mixes. Also available as an intravenous infusion. Available as Technical, Pure,
Food and BP grades.
SUPPLIER
Company: Quantum Chemicals Pty Ltd
Address:
70 Quantum Close
Dandenong South
Victoria 3175
Telephone: 03 8795 8000
Emergency Tel: 1300 131 001
Fax: 03 8795 8099
HAZARD RATINGS
Flammability
Toxicity
Body Contact
Reactivity
Chronic
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4
Section 2 - HAZARDS IDENTIFICATION
STATEMENT OF HAZARDOUS NATURE
NON-HAZARDOUS SUBSTANCE. NON-DANGEROUS GOODS. According to the Criteria of
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 2 of 9
Section 2 - HAZARDS IDENTIFICATION
NOHSC, and the ADG Code.
POISONS SCHEDULE
None
RISK SAFETY
May produce discomfort of the eyes and skin*. Avoid contact with skin.
* (limited evidence). Wear eye/ face protection.
In case of contact with eyes rinse with plenty
of water and contact Doctor or Poisons
Information Centre.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
sodium bicarbonate 144-55-8 >99
Section 4 - FIRST AID MEASURES
SWALLOWED
路 Immediately give a glass of water.
路 First aid is not generally required. If in doubt, contact a Poisons Information Centre
or a doctor.
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 fumes or combustion products are inhaled remove from contaminated area.
路 Other measures are usually unnecessary.
NOTES TO PHYSICIAN
Treat symptomatically.
Section 5 - FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA
路 There is no restriction on the type of extinguisher which may be used.
路 Use extinguishing media suitable for surrounding area.
FIRE FIGHTING
路 Alert Fire Brigade and tell them location and nature of hazard.
路 Wear breathing apparatus plus protective gloves for fire only.
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 3 of 9
Section 5 - FIRE FIGHTING MEASURES
路 Prevent, by any means available, spillage from entering drains or water courses.
路 Use fire fighting procedures suitable for surrounding area.
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 Equipment should be thoroughly decontaminated after use.
FIRE/EXPLOSION HAZARD
路 Solid which exhibits difficult combustion or is difficult to ignite.
路 Avoid generating dust, particularly clouds of dust in a confined or unventilated space
as dusts may form an explosive mixture with air, and any source of ignition, i.e.
flame or spark, will cause fire or explosion. Dust clouds generated by the fine
grinding of the solid are a particular hazard; accumulations of fine dust may burn
rapidly and fiercely if ignited.
路 Dry dust can also be charged electrostatically by turbulence, pneumatic transport,
pouring, in exhaust ducts and during transport.
路 Build-up of electrostatic charge may be prevented by bonding and grounding.
路 Powder handling equipment such as dust collectors, dryers and mills may require
additional protection measures such as explosion venting.
路 All movable parts coming in contact with this material should have a speed of less than
1-metre/sec.
Combustion products include: carbon monoxide (CO), carbon dioxide (CO2), other
pyrolysis products typical of burning organic material.
May emit corrosive fumes.
FIRE INCOMPATIBILITY
Avoid contamination with oxidising agents i.e. nitrates, oxidising acids, chlorine
bleaches, pool chlorine etc. as ignition may result.
HAZCHEM: None
Section 6 - ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES
MINOR SPILLS
路 Clean up all spills immediately.
路 Avoid breathing dust and contact with skin and eyes.
路 Wear protective clothing, gloves, safety glasses and dust respirator.
路 Use dry clean up procedures and avoid generating dust.
路 Sweep up, shovel up or
路 Vacuum up (consider explosion-proof machines designed to be grounded during storage and
use).
路 Place spilled material in clean, dry, sealable, labelled container.
MAJOR SPILLS
Moderate hazard.
路 CAUTION: Advise personnel in area.
路 Alert Emergency Services and tell them location and nature of hazard.
路 Control personal contact by wearing protective clothing.
路 Prevent, by any means available, spillage from entering drains or water courses.
路 Recover product wherever possible.
路 IF DRY: Use dry clean up procedures and avoid generating dust. Collect residues and
place in sealed plastic bags or other containers for disposal. IF WET: Vacuum/shovel up
and place in labelled containers for disposal.
路 ALWAYS: Wash area down with large amounts of water and prevent runoff into drains.
路 If contamination of drains or waterways occurs, advise Emergency Services.
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 4 of 9
Section 6 - ACCIDENTAL RELEASE MEASURES
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
life-threatening health effects is:
sodium bicarbonate 500 mg/m鲁
irreversible or other serious effects or symptoms which could impair an individual's ability to take
protective action is:
sodium bicarbonate 50 mg/m鲁
other than mild, transient adverse effects without perceiving a clearly defined odour is:
sodium bicarbonate 30 mg/m鲁
The threshold concentration below which most people will experience no appreciable risk of health effects:
sodium bicarbonate 10 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
Personal Protective Equipment advice is contained in Section 8 of the MSDS.
Section 7 - HANDLING AND STORAGE
PROCEDURE FOR HANDLING
路 Avoid all personal contact, including inhalation.
路 Wear protective clothing when risk of exposure occurs.
路 Use in a well-ventilated area.
路 Prevent concentration in hollows and sumps.
路 DO NOT enter confined spaces until atmosphere has been checked.
路 DO NOT allow material to contact humans, exposed food or food utensils.
路 Avoid contact with incompatible materials.
路 When handling, DO NOT eat, drink or smoke.
路 Keep containers securely sealed when not in use.
路 Avoid physical damage to containers.
路 Always wash hands with soap and water after handling.
路 Work clothes should be laundered separately. Launder contaminated clothing before re
-use.
路 Use good occupational work practice.
路 Observe manufacturer's storing and handling recommendations.
路 Atmosphere should be regularly checked against established exposure standards to ensure
safe working conditions are maintained.
SUITABLE CONTAINER
Multi-ply paper bag with sealed plastic liner or heavy gauge plastic bag.
NOTE: Bags should be stacked, blocked, interlocked, and limited in height so that they
are stable and secure against sliding or collapse. Check that all containers are clearly
labelled and free from leaks. Packing as recommended by manufacturer.
Glass container.
STORAGE INCOMPATIBILITY
Avoid reaction with oxidising agents.
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 5 of 9
Section 7 - HANDLING AND STORAGE
Avoid strong acids.
Segregate from monoammonium phosphate, acids and strong oxidisers.
Reacts rapidly with acidic materials, generates carbon dioxide gas, which
may pressurise, even violently rupture containers.
STORAGE REQUIREMENTS
Observe manufacturer's storing and handling recommendations.
_____________________________________________________
SAFE STORAGE WITH OTHER CLASSIFIED CHEMICALS
+ + + + + +
_____________________________________________________
+: May be stored together
O: May be stored together with specific preventions
X: Must not be stored together
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE CONTROLS
Source Material TWA mg/m鲁
_________ _________ _____
Australia Exposure Standards sodium bicarbonate (Inspirable 10
dust (Not specified))
PERSONAL PROTECTION
EYE
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
Experience indicates that the following polymers are suitable as glove materials for
protection against undissolved, dry solids.
路 polychloroprene
路 nitrile rubber
路 butyl rubber
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 6 of 9
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
路 fluorocaoutchouc
路 polyvinyl chloride
Gloves should be examined for wear and/ or degradation constantly.
Wear chemical protective gloves, eg. PVC.
Wear safety footwear or safety gumboots, eg. Rubber.
OTHER
路 Overalls.
路 P.V.C. apron.
路 Barrier cream.
路 Skin cleansing cream.
路 Eye wash 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
路 Local exhaust ventilation is required where solids are handled as powders or crystals;
even when particulates are relatively large, a certain proportion will be powdered by
mutual friction.
路 If in spite of local exhaust an adverse concentration of the substance in air could
occur, respiratory protection should be considered.
Such protection might consist of:
(a): particle dust respirators, if necessary, combined with an absorption cartridge;
(b): filter respirators with absorption cartridge or canister of the right type;
(c): fresh-air hoods or masks.
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:
direct spray, spray painting in shallow booths, 1- 2.5 m/s (200- 500 f/min.)
drum filling, conveyer loading, 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
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 7 of 9
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
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 4-10
m/s (800-2000 f/min) for extraction of crusher dusts generated 2 metres 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
White, crystalline odourless powder or granules. Soluble in water. Begins to lose carbon
dioxide at about 50 deg.C., and at 100 deg.C it is converted into sodium carbonate.
Insoluble in alcohol. Readily decomposed by weak acids. Slowly decomposes in moist air.
PHYSICAL PROPERTIES
Solid.
Mixes with water.
Molecular Weight: 84.0 Boiling Range (掳C): Not applicable.
Melting Range (掳C): 70 (decomposes) Specific Gravity (water=1): 2.16
Solubility in water (g/L): Miscible pH (as supplied): Not applicable
pH (1% solution): 8.4 Vapour Pressure (kPa): Not applicable.
Volatile Component (%vol): Nil Evaporation Rate: Not applicable
Relative Vapour Density (air=1): Not applicable. Flash Point (掳C): Not applicable
Lower Explosive Limit (%): Not applicable Upper Explosive Limit (%): Not applicable
Autoignition Temp (掳C): Not applicable Decomposition Temp (掳C): 270
State: Divided solid Viscosity: Not Applicable
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
Presence of incompatible materials.
Product is considered stable and hazardous polymerisation will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
POTENTIAL HEALTH EFFECTS
ACUTE HEALTH EFFECTS
SWALLOWED
Although ingestion is not thought to produce harmful effects (as classified under EC
Directives), the material may still be damaging to the health of the individual,
following ingestion, especially where pre-existing organ (e.g. liver, kidney) damage is
evident. Present definitions of harmful or toxic substances are generally based on doses
producing mortality rather than those producing morbidity (disease, ill-health).
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 8 of 9
Section 11 - TOXICOLOGICAL INFORMATION
Gastrointestinal tract discomfort may produce nausea and vomiting. In an occupational
setting however, ingestion of insignificant quantities is not thought to be cause for
concern.
EYE
Limited evidence or practical experience suggests, that the material may cause eye
irritation in a substantial number of individuals. Prolonged eye contact may cause
inflammation characterised by a temporary redness of the conjunctiva (similar to
windburn).
SKIN
There is some evidence to suggest that the material may cause mild but significant
inflammation of the skin either following direct contact or after a delay of some time.
Repeated exposure can cause contact dermatitis which is characterised by redness,
swelling and blistering.
Skin contact is not thought to have harmful health effects (as classified under EC
Directives); the material may still produce health damage following entry through wounds,
lesions or abrasions.
The material may cause skin irritation after prolonged or repeated exposure and may
produce on contact skin redness, swelling, the production of vesicles, scaling and
thickening of the skin.
INHALED
The material is not thought to produce adverse health effects or irritation of the
respiratory tract (as classified by EC Directives using animal models). Nevertheless,
good hygiene practice requires that exposure be kept to a minimum and that suitable
control measures be used in an occupational setting.
CHRONIC HEALTH EFFECTS
Long term exposure to high dust concentrations may cause changes in lung function i.e.
pneumoconiosis; caused by particles less than 0.5 micron penetrating and remaining in the
lung. Prime symptom is breathlessness; lung shadows show on X-ray.
Long-term exposure to the product is not thought to produce chronic effects adverse to
the health (as classified by EC Directives using animal models); nevertheless exposure by
all routes should be minimised as a matter of course.
TOXICITY AND IRRITATION
unless otherwise specified data extracted from RTECS - Register of Toxic Effects of Chemical Substances.
TOXICITY IRRITATION
Oral (human- infant) TDLo: 1260 mg/kg Skin (human): 30 mg/3d- I- Mild
Oral (rat) LD50: 4220 mg/kg Eye (rabbit): 100 mg rinse - Mild
Oral (man) TDLo: 14432 mg/kg [RTECS]
Section 12 - ECOLOGICAL INFORMATION
No data for sodium bicarbonate.
Section 13 - DISPOSAL CONSIDERATIONS
路 Recycle wherever possible.
路 Consult manufacturer for recycling options or consult local or regional waste
management authority for disposal if no suitable treatment or disposal facility can be
identified.
路 Dispose of by: Burial in a licenced land-fill or Incineration in a licenced apparatus
(after admixture with suitable combustible material)
路 Decontaminate empty containers. Observe all label safeguards until containers are
cleaned and destroyed.
SODIUM BICARBONATE
Chemwatch Material Safety Data Sheet (REVIEW)
Issue Date: 16-Aug-2006 CHEMWATCH 10448
NC317TCP Version No:6
CD 2007/3 Page 9 of 9
Section 14 - TRANSPORTATION INFORMATION
HAZCHEM: None
NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS:UN, IATA,
IMDG
Section 15 - REGULATORY INFORMATION
POISONS SCHEDULE: None
REGULATIONS
sodium bicarbonate (CAS: 144-55-8) is found on the following regulatory lists;
Australia Exposure Standards
Australia High Volume Industrial Chemical List (HVICL)
Australia Inventory of Chemical Substances (AICS)
CODEX General Standard for Food Additives (GSFA) - Additives Permitted for Use in Food in General, Unless Otherwise Specified, in Accordance with GMP
International Council of Chemical Associations (ICCA) - High Production Volume List
OECD Representative List of High Production Volume (HPV) Chemicals
Section 16 - OTHER INFORMATION
MSDS SECTION CHANGES
The following table displays the version number of and date on which each section was last changed.
Section Name Version Date Section Name Version Date Section Name Version Date
First Aid (eye) 6 16- Aug- 2006 Storage (storage 6 16- Aug- 2006 Instability 6 16- Aug- 2006
incompatibility) Condition
First Aid 6 16- Aug- 2006 Storage (storage 6 16- Aug- 2006 Acute Health (eye) 6 16- Aug- 2006
(inhaled) requirement)
First Aid (skin) 6 16- Aug- 2006 Storage (suitable 6 16- Aug- 2006 Acute Health 6 16- Aug- 2006
container) (inhaled)
Fire Fighter (fire 6 16- Aug- 2006 Engineering 6 16- Aug- 2006 Acute Health 6 16- Aug- 2006
fighting) Control (skin)
Fire Fighter (fire 6 16- Aug- 2006 Personal 6 16- Aug- 2006 Acute Health 6 16- Aug- 2006
incompatibility) Protection (eye) (swallowed)
Fire Fighter 6 16- Aug- 2006 Personal 6 16- Aug- 2006 Chronic Health 6 16- Aug- 2006
(fire/explosion Protection
hazard) (hands/feet)
Spills (major) 6 16- Aug- 2006 Personal 6 16- Aug- 2006 Toxicity and 6 16- Aug- 2006
Protection (other) Irritation
(Toxicity Figure)
Spills (minor) 6 16- Aug- 2006 Appearance 6 16- Aug- 2006 Disposal 6 16- Aug- 2006
Handling Procedure 6 16- Aug- 2006 Physical 6 16- Aug- 2006
Properties
Classification of the preparation and its individual components has drawn on official and
authoritative sources as well as independent review by the Chemwatch Classification
committee using available literature references.
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-Aug-2006
Print Date: 10-Jan-2008
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