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Material
Safety Data Sheets of Sodium Nitrate
1. Product Identification
Synonyms: Nitratine; nitric acid, sodium salt; sodium saltpeter;
sodium nitrate, crystal
CAS No.: 7631-99-4
Molecular Weight: 84.99
Chemical Formula: NaNO3
2. Composition/Information on Ingredients
Ingredient
CAS No Percent Hazardous
--------------------------------------- ------------ ------------
Sodium Nitrate 7631-99-4 99 - 100% Yes
3. Hazards Identification
Emergency Overview
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DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE
FIRE. HARMFUL IF SWALLOWED OR INHALED. MAY CAUSE IRRITATION TO
SKIN, EYES, AND RESPIRATORY TRACT.
J.T.
Baker SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity Rating: 3 - Severe (Oxidizer)
Contact Rating: 1 - Slight
Lab Protective Equip: GOGGLES; LAB COAT
Storage Color Code: Yellow (Reactive)
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Potential
Health Effects
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Inhalation:
Inhalation of dust irritates the respiratory tract. Symptoms may
include coughing, shortness of breath.
Ingestion: May cause gastroenteritis and abdominal pains. Other
symptoms may include dizziness, bloody diarrhea, convulsions,
and collapse. Purging and diuresis can be expected. Small repeated
doses may cause headache and mental impairment. Rare cases of
nitrates being converted to the more toxic nitrites have been
reported, mostly with infants.
Skin Contact: May cause irritation, symptoms including redness,
itching, and pain.
Eye Contact: May cause irritation, symptoms including redness,
itching, and pain.
Chronic Exposure: Under some circumstances methemoglobinemia occurs
in individuals when the nitrate is converted by bacteria in the
stomach to nitrite. Nausea, vomiting, dizziness, rapid heart beat,
irregular breathing, convulsions, coma, and death can occur should
this conversion take place.
Aggravation of Pre-existing Conditions: Workers with a history
of kidney or lung disease may be more susceptible to the effects
of this substance.
4. First Aid Measures
Inhalation: Remove to fresh air. Get medical attention for any
breathing difficulty.
Ingestion: Induce vomiting immediately as directed by medical
personnel. Never give anything by mouth to an unconscious person.
Get medical attention.
Skin Contact: Remove any contaminated clothing. Wipe off excess
from skin. Wash skin with soap and water for at least 15 minutes.
Get medical attention if irritation develops or persists.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes,
lifting lower and upper eyelids occasionally. Get medical attention
immediately.
5. Fire Fighting Measures
Fire: Not combustible, but substance is a strong oxidizer and
its heat of reaction with reducing agents or combustibles may
cause ignition.
Explosion: Explosive with shock, heat or friction. Sodium Nitrate
decomposes explosively when heated > 538C (1000F). Sensitive
to mechanical impact.
Fire Extinguishing Media: Use any means suitable for extinguishing
surrounding fire. Water spray may be used to keep fire exposed
containers cool.
Special Information: Wear full protective clothing and breathing
equipment for high-intensity fire or potential explosion conditions.
This oxidizing material can increase the flammability of adjacent
combustible materials.
6. Accidental Release Measures
Remove all sources of ignition. Ventilate area of leak or spill.
Wear appropriate personal protective equipment as specified in
Section 8. Spills: Clean up spills in a manner that does not disperse
dust into the air. Use non-sparking tools and equipment. Reduce
airborne dust and prevent scattering by moistening with water.
Pick up spill for recovery or disposal and place in a closed container.
Small amounts of residue may be flushed to sewer with plenty of
water.
7. Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated
area. Protect against physical damage and moisture. Isolate from
any source of heat or ignition. Avoid storage on wood floors.
Separate from incompatibles, combustibles, organic or other readily
oxidizable materials. Containers of this material may be hazardous
when empty since they retain product residues (dust, solids);
observe all warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: None established.
Ventilation System: A system of local and/or general exhaust is
recommended to keep employee exposures as low as possible. Local
exhaust ventilation is generally preferred because it can control
the emissions of the contaminant at its source, preventing dispersion
of it into the general work area. Please refer to the ACGIH document,
Industrial Ventilation, A Manual of Recommended Practices, most
recent edition, for details.
Personal Respirators (NIOSH Approved): For conditions of use where
exposure to dust or mist is apparent and engineering controls
are not feasible, a particulate respirator (NIOSH type N95 or
better filters) may be worn. If oil particles (e.g. lubricants,
cutting fluids, glycerine, etc.) are present, use a NIOSH type
R or P filter. For emergencies or instances where the exposure
levels are not known, use a full-face positive-pressure, air-supplied
respirator. WARNING: Air-purifying respirators do not protect
workers in oxygen-deficient atmospheres.
Skin Protection:
Wear impervious protective clothing, including boots, gloves,
lab coat, apron or coveralls, as appropriate, to prevent skin
contact.
Eye Protection:
Use chemical safety goggles and/or full face shield where dusting
or splashing of solutions is possible. Maintain eye wash fountain
and quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance: White crystals.
Odor: Odorless.
Solubility: 81.5 g/100 g water @ 15C (59F)
Specific Gravity: 2.26
PH: Aqueous solution is neutral.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: 380C (716F)
Melting Point: 308C (586F)
Vapor Density (Air=1): No information found.
Vapor Pressure (mm Hg): No information found.
Evaporation Rate (BuAc=1): No information found.
10. Stability and Reactivity
Stability: Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products: Emits nitrous oxides when heated
to decomposition.
Hazardous Polymerization: Will not occur.
Incompatibilities: Reacts with acids to emit toxic fumes of nitrogen
dioxide. Contact with the following may cause an explosion: barium
rhodanide, boron phosphide, cyanides, sodium thiosulfate, sodium
hypophosphite, sulfur plus charcoal, powdered aluminum and aluminum
oxide. Fibrous organic material such as jute, wood, and similar
cellulosic materials can become highly combustible by nitrate
impregnation.
Conditions to Avoid: Heat, flame, ignition sources, shock, friction,
incompatibles.
11. Toxicological Information
Oral
rat LD50: 1267 mg/kg. Investigated as a tumorigen, mutagen, reproductive
effector.
12. Ecological Information
Environmental Fate: No information found.
Environmental Toxicity: No information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be handled
as hazardous waste and sent to a RCRA approved waste facility.
Processing, use or contamination of this product may change the
waste management options. State and local disposal regulations
may differ from federal disposal regulations. Dispose of container
and unused contents in accordance with federal, state and local
requirements.
14. Transport Information
Domestic (Land, D.O.T.)
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Proper Shipping Name: SODIUM NITRATE
Hazard Class: 5.1
UN/NA: UN1498
Packing Group: III
Information reported for product/size: 12X25LB
International
(Water, I.M.O.)
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Proper Shipping Name: SODIUM NITRATE
Hazard Class: 5.1
UN/NA: UN1498
Packing Group: III
Information reported for product/size: 12X25LB
15. Regulatory Information
Chemical Weapons Convention: No
TSCA 12(b): No
CDTA: No
SARA 311/312:
Acute: Yes
Chronic: No
Fire: No
Pressure: No
Reactivity: Yes (Pure / Solid)
Australian Hazchem Code: 1[T]
Poison Schedule: None allocated.
WHMIS:
This MSDS has been prepared according to the hazard criteria of
the Controlled Products Regulations (CPR) and the MSDS contains
all of the information required by the CPR.
16. Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 1 Other: Oxidizer
Label Hazard Warning: DANGER! STRONG OXIDIZER. CONTACT WITH OTHER
MATERIAL MAY CAUSE FIRE. HARMFUL IF SWALLOWED OR INHALED. MAY
CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT.
Label Precautions:
Keep from contact with clothing and other combustible materials.
Store in a tightly closed container.
Remove and wash contaminated clothing promptly.
Avoid breathing dust.
Avoid contact with eyes, skin and clothing.
Wash thoroughly after handling.
Label First Aid: If swallowed, induce vomiting immediately as
directed by medical personnel. Never give anything by mouth to
an unconscious person. If inhaled, remove to fresh air. If not
breathing, give artificial respiration. If breathing is difficult,
give oxygen. In case of contact, immediately flush eyes or skin
with plenty of water for at least 15 minutes. In all cases, get
medical attention.
Product Use: Laboratory Reagent.
Revision Information: MSDS Section(s) changed since last revision
of document include: 8
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