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MSDS 
:
 Sodium meta-Silicate Pentahydrate
CAS 
:
 6834-92-0
SYNONYMS 
:
 Sodium silicate pentahydrate; Sodium metasilicate pentahydrate;     Disodium metasilicate pentahydrate; Disodium trioxosilicate     pentahydrate.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 6834-92-0 |Sodium metasilicate anhydrous | - | 229-912-9 |
|----------------|--------------------------------------|----------|-----------|
| 10213-79-3 |Sodium metasilicate pentahydrate | 100 | unlisted |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: C
Risk Phrases: 34 37

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

EMERGENCY OVERVIEW
Causes burns. Irritating to respiratory system.Corrosive.

Potential Health Effects
Eye:
Contact with eyes may cause severe irritation, and possible eye
burns.
Skin:
Contact with skin causes irritation and possible burns, especially
if the skin is wet or moist.
Ingestion:
May cause severe digestive tract irritation with abdominal pain,
nausea, vomiting and diarrhea. May be harmful if swallowed.
Inhalation:
May cause irritation of the respiratory tract with burning pain in
the nose and throat, coughing, wheezing, shortness of breath and
pulmonary edema.
Chronic:
Chronic inhalation and ingestion may cause effects similar to those
of acute inhalation and ingestion. May cause fetal effects.

**** 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 immediately.
Skin:
Get medical aid immediately. In case of contact, immediately wipe
away excess material with a dry cloth while removing contaminated
clothing and shoes. Under safety shower, wash affected areas
thoroughly with large amounts of water, and soap if available, for at
least 15 minutes. Discard or decontaminate clothing and shoes.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give
anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
Use water spray, dry chemical, carbon dioxide, or alcohol-resistant
foam.

**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****

General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Sweep up or absorb material, then place into a suitable clean, dry,
closed container for disposal. Avoid generating dusty conditions.
Provide ventilation.

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

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use with adequate ventilation. Do not get on skin
or in eyes. Do not ingest or inhale. Discard contaminated shoes.
Storage:
Store in a cool, dry 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.
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: none reported
pH: 12.6 (1% solution)
Vapor Pressure: Not applicable.
Viscosity: Not applicable.
Boiling Point: Not applicable.
Freezing/Melting Point: 161.96 deg F
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: very soluble in water
Specific Gravity/Density: 1.749
Molecular Formula: SiO3Na2.5H2O
Molecular Weight: 212.74

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

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Acids.
Hazardous Decomposition Products:
Silicon oxide, sodium oxide.
Hazardous Polymerization: Will not occur.

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

RTECS#:
CAS# 6834-92-0: VV9275000
CAS# 10213-79-3: VV9287500
LD50/LC50:
CAS# 6834-92-0: Draize test, rabbit, skin: 250 mg/24H Severe; Oral,
mouse: LD50 = 770 mg/kg; Oral, rat: LD50 = 1153 mg/kg.
CAS# 10213-79-3: Oral, rat: LD50 = 847 mg/kg.
Carcinogenicity:
Sodium metasilicate anhydrous -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Sodium metasilicate pentahydrate -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.

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

Other
No information available.

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

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

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

IATA
Shipping Name: Disodium Trioxosilicate Pentahydrate
Hazard Class: 8
UN Number: 3253
Packing Group: III
IMO
Shipping Name: Disodium Trioxosilicate Pentahydrate
Hazard Class: 8
UN Number: 3253
Packing Group: III
RID/ADR
Shipping Name: Disodium Trioxosilicate Pentahydrate
Dangerous Goods Code: 8
UN Number: 3253

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

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 34 Causes burns.
R 37 Irritating to respiratory system.
Safety Phrases:
S 13 Keep away from food, drink and animal feeding
stuffs.
S 24/25 Avoid contact with skin and eyes.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
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# 6834-92-0: 1
CAS# 10213-79-3: 1
United Kingdom Occupational Exposure Limits

Canada
CAS# 6834-92-0 is listed on Canada's DSL List.
CAS# 6834-92-0 is listed on Canada's Ingredient Disclosure List.
CAS# 10213-79-3 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
US FEDERAL
TSCA
CAS# 6834-92-0 is listed on the TSCA inventory.
CAS# 10213-79-3 is not on the TSCA Inventory. It is a hydrate and
exempt from TSCA Inventory requirements (40CFR720.3(u)(2)).

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

MSDS Creation Date: 9/30/1997 Revision #5 Date: 10/23/2001

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 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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