MSDS Name:   Sodium Sulfate Crystalline, Anhydrous P.A.
Synonym:   Bisodium sulfate; Dibasic sodium sulfate; Disodium monosulfate; Disodium sulfate; Natriumsulfate; Sodium sulphate; Sulfuric acid, disodium salt; Thenardite
Company:   AboutChem.com

**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 7757-82-6 |Sodium Sulfate | ca.100 | 231-820-9 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Moisture sensitive.

Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
Ingestion of large amounts may cause gastrointestinal irritation.
Low hazard for usual industrial handling.
Inhalation:
May cause respiratory tract irritation. Low hazard for usual
industrial handling.
Chronic:
No information found.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. If irritation
develops, 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. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Do NOT induce
vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls
of milk or water. Get medical aid if irritation or symptoms occur.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid if cough or other symptoms appear.
Notes to Physician:

**** 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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. This
material in sufficient quantity and reduced particle size is capable
of creating a dust explosion.
Extinguishing Media:
Substance is nonflammable; use agent most appropriate to extinguish
surrounding fire. Do NOT get water inside containers. Use water
spray, dry chemical, carbon dioxide, or appropriate foam.

**** 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. Avoid runoff into storm sewers and ditches which lead to
waterways. Clean up spills immediately, observing precautions in the
Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation. Do not get water inside containers.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Wash hands before eating. Remove
contaminated clothing and wash before reuse. Minimize dust generation
and accumulation. Avoid contact with eyes, skin, and clothing. Avoid
ingestion and inhalation. Use with adequate ventilation. Do not
allow contact with water. Keep from contact with moist air and
steam.
Storage:
Keep from contact with oxidizing materials. Store in a cool, dry,
well-ventilated area away from incompatible substances. Do not store
in aluminum containers. Store protected from moisture.

**** 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.
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: Powder
Appearance: white
Odor: odorless
pH: 4.9 (5% solution)
Vapor Pressure: Not available.
Viscosity: 2.48 (22% soln)
Boiling Point: 1100 deg C (dec)
Freezing/Melting Point: 880-888 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble in cold water.
Specific Gravity/Density: 2.671
Molecular Formula: Na2H2SO4
Molecular Weight: 144.0512

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation, moisture, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, aluminum, magnesium, potassium, mercury,
lead, calcium, silver, barium, ammonium ions, strontium.
Hazardous Decomposition Products:
Oxides of sulfur, irritating and toxic fumes and gases, sodium oxide.
Hazardous Polymerization: Will not occur.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 7757-82-6: WE1650000
LD50/LC50:
CAS# 7757-82-6: Oral, mouse: LD50 = 5989 mg/kg.
Carcinogenicity:
Sodium Sulfate -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Fish: Bluegill/Sunfish: LC50 = 12,750 ppm; 96 Hr; Static
bioassayWater flea Daphnia: LC50 = 4547 mg/L; 96 Hr;
UnspecifiedFish: Fathead Minnow: LC50 = 13,500-14,000 mg/L; 24 - 96
Hr; UnspecifiedFish: Mosquito Fish: LC50 = 17,500 mg/L; 96 Hr;
UnspecifiedThis chemical is not expected to cause oxygen depletion
in aquatic systems. It has a low potential to affect aquatic
organisms and is expected to have a low potential to affect
secondary waste treatment microorganisms.
Other
This chemical is not likely to bioconcentrate.

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Shipping Name: Not regulated.
Dangerous Goods Code:
UN Number:

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 7757-82-6: 0
United Kingdom Occupational Exposure Limits

Canada
CAS# 7757-82-6 is listed on Canada's DSL List.
CAS# 7757-82-6 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
US FEDERAL
TSCA
CAS# 7757-82-6 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

MSDS Creation Date: 7/08/1999 Revision #1 Date: 8/02/2000

The information above is believed to be accurate and represents the best
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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
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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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