**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 7632-00-0 |Sodium nitrite | 97+ | 231-555-9
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T O
Risk Phrases: 25 8
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Toxic if swallowed. Contact with combustible material may cause
fire.Hygroscopic.Air sensitive.
Potential Health Effects
Eye:
Causes eye irritation. May cause conjunctivitis. May cause
permanent corneal opacification.
Skin:
Causes skin irritation. May be absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause methemoglobinemia, cyanosis (bluish
discoloration of skin due to deficient oxygenation of the blood),
convulsions, and death. Causes digestive tract irritation. Ingestion
may cause weakness, muscular incoordination, fine tremors, loss of
reflexes, convulsions and possible death from circulatory collapse.
Ingestion may cause a decrease in blood pressure, rapid pulse and
visual disturbances.
Inhalation:
May be fatal if inhaled. May cause methemoglobinemia, cyanosis,
convulsions, tachycardia, dyspnea (labored breathing), and death.
May cause acute pulmonary edema, asphyxia, chemical pneumonitis, and
upper airway obstruction caused by edema.
Chronic:
May cause reproductive and fetal effects. Laboratory experiments
have resulted in mutagenic effects. Animal studies have reported the
development of tumors. Sodium nitrate may react with secondary or
tertiary amines to form nitrosamines (certain nitrosamines are
cancer suspect agents).
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Immediately flush skin with plenty of soap and
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse.
Ingestion:
Call a poison control center. If swallowed, do not induce vomiting
unless directed to do so by medical personnel. Never give anything by
mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure to fresh air immediately. If breathing is
difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If
breathing has ceased apply artificial respiration using oxygen and a
suitable mechanical device such as a bag and a mask. SPEED IS
ESSENTIAL, OBTAIN MEDICAL AID IMMEDIATELY.
Notes to Physician:
Absorption of this product into the body may cause cyanosis (bluish
discoloration of skin due to deficient oxygenation of the blood).
Moderate degrees of cyanosis need to be treated only by supportive
measures: bed rest and oxygen inhalation. If cyanosis is severe,
intravenous injection of Methylene blue, 1mg/kg of body weight may
be of value.
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Strong oxidizer. Contact with combustible materials
may cause a fire. Use water with caution and in flooding amounts. May
explode from heat or contamination. May accelerate burning if
involved in a fire.
Extinguishing Media:
Use water only! Contact professional fire-fighters immediately. Cool
containers with flooding quantities of water until well after fire is
out. For large fires, flood fire area with water from a distance. Do
NOT use dry chemicals, CO2, Halon or foams.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Remove all sources of ignition.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Minimize dust generation and accumulation. Avoid
contact with eyes, skin, and clothing. Keep container tightly closed.
Avoid contact with clothing and other combustible materials. Do not
ingest or inhale. Handle under an inert atmosphere. Store protected
from air. Use only in a chemical fume hood.
Storage:
Keep away from heat, sparks, and flame. Do not store near
combustible materials. Store in a tightly closed container. Store in
a cool, dry, well-ventilated area away from incompatible substances.
Do not expose to air. Store protected from moisture. Store under an
inert atmosphere.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use only under a
chemical fume hood.
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant a respirator's use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Crystals
Color: white to light yellow
Odor: odorless
pH: ~ 9
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 320 deg C
Freezing/Melting Point: 271 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 320 deg C
Solubility in water: Soluble.
Specific Gravity/Density: 2.168
Molecular Formula: NaNO2
Molecular Weight: 68.9953
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions. Unstable if heated, may explode at
temperatures greater than 533C.
Conditions to Avoid:
Unstable if heated, may explode at temperatures greater than 533C.,
incompatible materials, ignition sources, dust generation, exposure
to air, combustible materials, reducing agents, exposure to moist
air or water, temperatures above 320C.
Incompatibilities with Other Materials:
Reducing agents, moisture, metals as powders (e.g. hafnium, raney
nickel), ammonium salts, cyanides (e.g. potassium cyanide, sodium
cyanide), amines, activated carbon, acids, organic matter,
acetanilide, antipyrine, chlorates, hypophosphites, iodides, mercury
salts, permanganates, sulfites, tannic acid, vegetable astringents.
Hazardous Decomposition Products:
Oxides of nitrogen, irritating and toxic fumes and gases.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7632-00-0: RA1225000
LD50/LC50:
CAS# 7632-00-0: Draize test, rabbit, eye: 500 mg/24H Mild;
Inhalation, rat: LC50 = 5500 ug/m3/4H; Oral, mouse: LD50 = 175 mg/kg;
Oral, rabbit: LD50 = 186 mg/kg; Oral, rat: LD50 = 180 mg/kg.
Carcinogenicity:
Sodium nitrite -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish: Rainbow trout: LC50 = 0.19-0.39 mg/L; 96 Hr; Flow-through
bioassayFish: Mosquito Fish: TLm =8.1 ppm; 24 Hr; Highly turbid
waterFish: Creek chub: Critical range = 400-2000 ppm; 24 Hr; Detroit
River
Other
Harmful to aquatic life in very low concentrations.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: SODIUM NITRITE
Hazard Class: 5.1
UN Number: 1500
Packing Group: III
IMO
Shipping Name: SODIUM NITRITE
Hazard Class: 5.1
UN Number: 1500
Packing Group: III
RID/ADR
Shipping Name: SODIUM NITRITE
Hazard Class: 5.1
UN Number: 1500
Packing group: III
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T O
Risk Phrases:
R 25 Toxic if swallowed.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 7632-00-0: 2
United Kingdom Occupational Exposure Limits
United Kingdom Maximum Exposure Limits
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 7632-00-0 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 7632-00-0: OEL-CZECHOSLOVAKIA:TWA 1 mg/m3;STEL 5 mg/m3
OEL-HUNGARY:STEL 1 mg/m3;Skin
US FEDERAL
TSCA
CAS# 7632-00-0 is not listed on the TSCA inventory.
It is for research and development use only.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 7/02/1999 Revision #2 Date: 12/03/2002
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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