**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | <0.5 | 231-791-2 |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 26628-22-8 |Sodium azide | >99 | 247-852-1 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: T+ N
Risk Phrases: 28 32 50/53
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Very toxic if swallowed. Contact with acids liberates very toxic
gas. Very toxic to aquatic organisms, may cause long-term adverse
effects in the aquatic environment.Heat sensitive.Dangerous for the
environment.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May be fatal if absorbed through the skin.
If absorbed, causes symptoms similar to those of ingestion.
Ingestion:
May be fatal if swallowed. Causes gastrointestinal irritation with
nausea, vomiting and diarrhea. Sodium azide may cause hypotension
(abnormally low blood pressure), tachycardia (rapid heart rate),
tachypnea (quick, shallow breathing), hypothermia (low body
temperature), convulsions and severe headache.
Inhalation:
May be fatal if inhaled. Dust is irritating to the respiratory
tract. May cause effects similar to those described for ingestion.
Rapidly absorbed.
Chronic:
Chronic inhalation and ingestion may cause effects similar to those
of acute inhalation and ingestion.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid.
Skin:
In case of contact, immediately flush skin with plenty of water for
at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. 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:
POISON material. If inhaled, get medical aid immediately. Remove
victim to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen.
Notes to Physician:
Treat symptomatically and supportively.
**** 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. Vapors may form an explosive mixture with air.
Water Reactive. Contact with metals may evolve flammable hydrogen
gas. Containers may explode when heated. Approach fire from upwind
to avoid hazardous vapors and toxic decomposition products. Forms
explosion sensitive compounds with some metals such as lead and
copper. Form hydrazoic acid vapor in contact with acid or water.
Hydrazoic acid vapor is highly toxic and a dangerous explosive.
Hydrazoic acid is shock sensitive.
Extinguishing Media:
Use dry chemical, carbon dioxide, or alcohol-resistant foam. Do NOT
get water inside containers.
**** 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. Provide ventilation. Do not flush
down the drain. Over a period of time, sodium azide may react with
copper, lead, brass, or solder in plumbing systems to form an
accumulation of the highly explosive compounds of lead azide and
copper azide.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Minimize dust generation and accumulation. Do not
get in eyes, on skin, or on clothing. Keep container tightly closed.
Do not ingest or inhale. Use only with adequate ventilation. Do not
use with metal spatula or other metal items.
Storage:
Keep away from sources of ignition. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep away
from water. Keep away from acids. Do not store in metal containers.
Keep containers tightly closed. Some have recommended storage in an
explosion-proof refrigerator.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Exposure Limits
CAS# 7732-18-5:
CAS# 7782-79-8:
Germany: 0.1 ppm TWA; 0.18 mg/m3 TWA
Netherlands: 0.1 ppm MAC; 0.18 mg/m3 MAC
CAS# 26628-22-8:
United Kingdom, WEL - TWA: 0.1 mg/m3 TWA (as NaN3)
United Kingdom, WEL - STEL: 0.3 mg/m3 STEL (as NaN3)
Belgium - TWA: 0.1 mg/m3 VLE
Belgium - STEL: 0.30 mg/m3 VLE
France - VLE: 0.1 ppm VLE; 0.3 mg/m3 VLE
Germany: 0.2 mg/m3 TWA
Malaysia: 0.29 mg/m3 Ceiling (as sodium azide); 0.11 ppm Ceiling
hydrazoic acid vapour
Netherlands: 0.3 mg/m3 STEL
Netherlands: 0.1 mg/m3 MAC
Spain: 0.1 mg/m3 VLA-ED
Spain: 0.3 mg/m3 VLA-EC; 0.1 ppm VLA-EC (as hydrazoic acid vapor)
0.18 mg/m3 VLA-EC (a
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 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Crystals
Color: colorless to white
Odor: odorless
pH: Not available.
Vapor Pressure: Negligible.
Viscosity: Not applicable.
Boiling Point: Not applicable.
Freezing/Melting Point: 527 deg F (dec)
Autoignition Temperature: Not available.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 527 deg F
Solubility in water: Soluble.
Specific Gravity/Density: 1.85
Molecular Formula: N3Na
Molecular Weight: 65.01
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable. However, may decompose if heated. May be shock-sensitive.
Conditions to Avoid:
Mechanical shock, light, contact with water, temperatures above
275C.
Incompatibilities with Other Materials:
Acids, some metals, oxidizing agents.
Hazardous Decomposition Products:
Nitrogen oxides, sodium oxide, hydrazoic acid.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7732-18-5: ZC0110000
CAS# 7782-79-8: MW2800000
CAS# 26628-22-8: VY8050000
LD50/LC50:
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
CAS# 7782-79-8: Inhalation, mouse: LC50 = 34 mg/m3; Oral, rat: LD50
= 33 mg/kg.
CAS# 26628-22-8: Inhalation, mouse: LC50 = 32400 ug/m3; Inhalation,
rat: LC50 = 37 mg/m3; Oral, mouse: LD50 = 27 mg/kg; Oral, rat: LD50
= 27 mg/kg; Skin, rabbit: LD50 = 20 mg/kg; Skin, rat: LD50 = 50
mg/kg.
Carcinogenicity:
Water -
Not listed by ACGIH, IARC, or NTP.
Hydrazoic acid -
Not listed by ACGIH, IARC, or NTP.
Sodium azide -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish: Rainbow trout: LC50 = 0.8-1.6 mg/L; 96 Hr.; 13 degrees CFish:
Bluegill/Sunfish: LC50 = 0.7-0.8 mg/L; 96 Hr.; 18 degrees C
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 AZIDE
Hazard Class: 6.1
UN Number: 1687
Packing Group: II
IMO
Shipping Name: SODIUM AZIDE
Hazard Class: 6.1
UN Number: 1687
Packing Group: II
RID/ADR
Shipping Name: SODIUM AZIDE
Hazard Class: 6.1
UN Number: 1687
Packing group: II
USA RQ: CAS# 26628-22-8: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+ N
Risk Phrases:
R 28 Very toxic if swallowed.
R 32 Contact with acids liberates very toxic gas.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 28A After contact with skin, wash immediately with
plenty of water.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 7732-18-5: No information available.
CAS# 7782-79-8: No information available.
CAS# 26628-22-8: 2
Canada
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 7782-79-8 is listed on Canada's NDSL List.
CAS# 26628-22-8 is listed on Canada's DSL List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 7782-79-8 is listed on Canada's Ingredient Disclosure List.
CAS# 26628-22-8 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
CAS# 7782-79-8 is listed on the TSCA inventory.
CAS# 26628-22-8 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
Text for R-phrases from Section 2
MSDS Creation Date: 7/01/1999 Revision #10 Date: 4/05/2004
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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