Material Safety Data Sheet
Sodium Nitrate

ACC# 21400
Section 1 - Chemical Product and Company Identification

MSDS Name: Sodium Nitrate
Catalog Numbers: S71996, S71997, S71998, S78698, S78699, BP360 500, BP360-500, BP360500, NC9610389, NC9719189, S342 3, S342-3, S34220KG, S3423, S343 3, S343 500, S343-10, S343-3, S343-500, S3433, S343500, S71998-1, XXS342200LB, XXSODNIT50LB
Nitratine, soda niter, chile saltpeter
Company Identification:

              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
For information, call:
Emergency Number:
For CHEMTREC assistance, call:
For International CHEMTREC assistance, call:

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
7631-99-4 Sodium nitrate 100 231-554-3

Hazard Symbols:
Risk Phrases:
22 8

Section 3 - Hazards Identification


Appearance: colourless. Danger! Hygroscopic. May cause eye and skin irritation. May cause respiratory and digestive tract irritation. May cause methemoglobinemia. Strong oxidizer. Contact with other material may cause a fire. May be harmful if swallowed.
Target Organs: Blood, blood forming organs.

Potential Health Effects
Eye: May cause eye irritation.
Skin: May cause skin irritation.
Ingestion: May cause irritation of the digestive tract. May be harmful if swallowed. Ingestion may produce eye disturbances, deafness, speechlessness, and tetanic convulsions.
Inhalation: May cause respiratory tract irritation. May cause methemoglobinemia, cyanosis, convulsions, tachycardia, dyspnea (labored breathing), and death. The toxicity of Nitrates is due to their in-vivo conversion to Nitrite s which may lead to methemoglobinemia.
Chronic: Prolonged exposure may cause anemia and methemoglobinemia, characterized by dizziness, drowsiness, headache, breath shortness, cyanosis (bluish skin due to deficient oxygenation of the blood), rapid heart rate and chocolate-brown colored blood.

Section 4 - First Aid Measures

Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion: If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Induce vomiting by giving one teaspoon of Syrup of Ipecac.
Inhalation: Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: For methemoglobinemia, administer oxygen alone or with Methylene blue depending on the methemoglobinemia concentration in the blood.
Antidote: Methylene blue, alone or in combination with oxygen is indicated as a treatment in nitrite induced methemoglobinemia.

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. Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products.
Extinguishing Media: Cool containers with flooding quantities of water until well after fire is out. For small fires, do NOT use dry chemicals, carbon dioxide, halon or foams. USE WATER ONLY. For large fires, flood fire area with water from a distance.

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. Provide ventilation.

Section 7 - Handling and Storage

Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage: Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

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 adequate ventilation to keep airborne concentrations low.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Sodium nitrate none listed none listed none listed

OSHA Vacated PELs: Sodium nitrate: No OSHA Vacated PELs are listed for this chemical.
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: Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Section 9 - Physical and Chemical Properties

Physical State: Solid
Appearance: colourless
Odor: odorless
pH: 7.0
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: 716 deg F
Freezing/Melting Point:586 deg F
Autoignition Temperature: Not available.
Flash Point: Not available.
Decomposition Temperature:716 deg F
NFPA Rating: (estimated) Health: 2; Flammability: 0; Reactivity: 1
Explosion Limits, Lower:Not available.
Upper: Not available.
Solubility: Soluble in water
Specific Gravity/Density:2.26
Molecular Formula:NaNO3
Molecular Weight:84.9947

Section 10 - Stability and Reactivity

Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Incompatible materials, combustible materials, reducing agents, strong acids, exposure to moist air or water.
Incompatibilities with Other Materials: Acids (mineral, non-oxidizing, e.g. hydrochloric acid, hydrofluoric acid, muriatic acid, phosphoric acid), acids (organic, e.g. acetic acid, benzoic acid, formic acid, methanoic acid, oxalic acid), alcohols and glycols (e.g. butyl alcohol, ethanol, methanol, ethylene glycol), aldehydes (e.g. acetaldehyde, acrolein, chloral hydrate, formaldehyde), amides (e.g. butyramide, diethyltoluamide, dimethyl formamide), amines (aliphatic and aromatic, e.g. dimethyl amine, propylamine, pyridine, triethylamine), azo, diazo, and hydrazines (e.g. dimethyl hydrazine, hydrazine, methyl hydrazine), carbamates (e.g. carbanolate, carbofuran), cyanides (e.g. potassium cyanide, sodium cyanide), dithiocarbamates (e.g. ferbam, maneb, metham, thiram), esters (e.g. butyl acetate, ethyl acetate, propyl formate), ethers (e.g. dioxane, furfuran, tetrahydrofuran (THF)), hydrocarbons (aromatic, e.g. benzene, chrysene, cumene, toluene), halogenated organics (e.g. dibromoethane, hexachlorobenzene, methyl chloride, trichloroethylene), isocyanates (e.g. methyl isocyanate), ketones (e.g. acetone, acetophenone, MEK, MIBK), mercaptans and other organic sulfides (e.g. butyl mercaptan, carbon disulfide, methanethiol), metals (alkali and alkaline, e.g. cesium, potassium, sodium), metals as powders (e.g. hafnium, raney nickel), metals as non-powders (e.g. brass, bronze, iron), nitrides (e.g. potassium nitride, sodium nitride), nitriles (e.g. acetonitrile, methyl cyanide), nitro compounds (organic, e.g. nitrobenzene, nitroglycerine, picric acid, trinitrotoluene), hydrocarbons (aliphatic, unsaturated, e.g. cyclopentene, ethylene, heptene), hydrocarbons (aliphatic, saturated, e.g. butane, heptane, isooctane), peroxides and hydroperoxides (organic, e.g. acetyl peroxide, benzoyl peroxide, butyl peroxide, methyl ethyl ketone peroxide), phenols and cresols (e.g. carbolic acid, creosote, cresol, phenol, resorcinol), organophosphates, phosphothioates (e.g. methylparathion, parathion, phorate, thionazin), sulfides (i.
Hazardous Decomposition Products: Oxides of nitrogen.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information

CAS# 7631-99-4: WC5600000
CAS# 7631-99-4:
Oral, rabbit: LD50 = 2680 mg/kg;
Oral, rat: LD50 = 1267 mg/kg;
CAS# 7631-99-4: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Epidemiology: orl-rat TDL0: 100 gm/kg/2Y-C orl-rat TD: 1825 gm/kg/2Y-C orl -rat TD: 913 gm/kg/2Y-C
Teratogenicity: No data available.
Reproductive Effects: orl-mus TDL0: 16800 mg/kg (14D male)
Neurotoxicity: No data available.
Mutagenicity: mmo-omi 1000 ppm dns-hmn: hla 6 mmol/l otr-rat-orl 13 gm/kg/6W cyt-rat-orl 78500 ęg/kg mnt-mus-orl 78500 ęg/kg cyt-mus-orl 7067 mg/kg spm-mus-orl 16800 mg/kg/2W mnt-ham-orl 250 mg/kg otr-ham-orl 250 mg/kg cyt-ham: fibr 7200 mg/l/48H
Other Studies: No data available.

Section 12 - Ecological Information

Ecotoxicity: No data available. This material will not cause oxygen depletion in aquatic systems. It has a low potential to affect aquatic organisms, secondary waste treatment microorganisms, and the growth of some plants. It has a moderate potential to affect the germination of some plants. Acute aquatic effects: 96-hour LC50; Fathead minnow: GT 1000 mg/L 96-hour LC50; Water flea: GT 1000 mg/L
Environmental: This chemical is not likely to bioconcentrate. If diluted with water, This chemical released directly or indirectly into the environment is not expected to have a significant impact.
Physical: No information found.
Other: No information found.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

Hazard Class: 5.1 5.1
UN Number: UN1498 UN1498
Packing Group: III III

Section 15 - Regulatory Information


CAS# 7631-99-4 is listed on the TSCA inventory.
Health & Safety Reporting List
None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
None of the chemicals in this material have a SNUR under TSCA.

Section 302 (RQ)
None of the chemicals in this material have an RQ.
Section 302 (TPQ)
None of the chemicals in this product have a TPQ.
SARA Codes
CAS # 7631-99-4: flammable.
Section 313
No chemicals are reportable under Section 313.
Clean Air Act:
This material does not contain any hazardous air pollutants. This material does not contain any Class 1 Ozone depletors. This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
None of the chemicals in this product are listed as Hazardous Substances under the CWA. None of the chemicals in this product are listed as Priority Pollutants under the CWA. None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
None of the chemicals in this product are considered highly hazardous by OSHA.
CAS# 7631-99-4 can be found on the following state right to know lists: New Jersey, Florida, Pennsylvania, Massachusetts.
California No Significant Risk Level: None of the chemicals in this product are listed. European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
Risk Phrases:

R 22 Harmful if swallowed.
R 8 Contact with combustible material may cause

Safety Phrases:

S 17 Keep away from combustible material.
S 24/25 Avoid contact with skin and eyes.
S 3/7/9 Keep container tightly closed in a cool,
well-ventilated place.
S 36/37 Wear suitable protective clothing and

WGK (Water Danger/Protection)

CAS# 7631-99-4: 1
CAS# 7631-99-4 is listed on Canada's DSL List. CAS# 7631-99-4 is listed on Canada's DSL List.
This product has a WHMIS classification of C, D2B.
CAS# 7631-99-4 is listed on Canada's Ingredient Disclosure List.
Exposure Limits

Section 16 - Additional Information

MSDS Creation Date: 12/12/1997
Revision #7 Date: 11/21/2001
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 event shall Fisher 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 Fisher has been advised of the possibility of such damages.