MSDS
MATERIAL SAFETY DATA SHEET
STAR鈩? Sodium Silicate Solution
Trade Name:
Date Prepared: 03/10/05 Page: 1 of 5
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Product name: STAR鈩? Sodium silicate solution
Product description: A 2.50 weight ratio sodium silicate, 37.1% solution in water
Manufacturer: PQ Corporation
P. O. Box 840
Valley Forge, PA USA
Phone number: 610-651-4200
In case of emergency call: 1 610-651-4200
For transportation emergency
Call CHEMTREC: 1 800-424-9300
2. COMPOSITION/INFORMATION ON INGREDIENTS
Chemical and Common Name CAS Registry Number Wt. % OSHA PEL ACGIH TLV
Water 7732-18-5 62.9% Not Established Not Established
Silicic acid, sodium salt; 1344-09-8 37.1% Not Established Not Established
Sodium silicate
3. HAZARDS IDENTIFICATION
Emergency Overview: Clear, colorless, odorless, thick liquid. Causes moderate eye,
skin, and digestive tract irritation. Spray mist causes irritation
to respiratory tract. Due to high pH of product, release into
surface water is harmful to aquatic life. Noncombustible.
Spills are slippery. Reacts with acids, ammonium salts,
reactive metals and some organics.
Eye contact: Causes moderate irritation to the eyes.
Skin contact: Causes moderate irritation to the skin.
Inhalation: Spray mist is irritating to respiratory tract.
Ingestion: May cause irritation to mouth, esophagus, and stomach.
Chronic hazards: No known chronic hazards. Not listed by NTP, IARC or OSHA
as a carcinogen.
Physical hazards: Dries to form glass film, which can easily cut skin. Spilled
material is very slippery. Can etch glass if not promptly
removed.
4. FIRST AID MEASURES
Eye: In case of contact, immediately flush eyes with plenty of water for at least
15 minutes. Get medical attention.
Skin: In case of contact, immediately flush skin with plenty of water. Remove
contaminated clothing and shoes. Get medical attention.
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Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Get medical attention.
Ingestion: If swallowed, DO NOT induce vomiting. Get medical attention
immediately. If victim is fully conscious, give a cupful of water. Never
give anything by mouth to an unconscious person.
5. FIRE FIGHTING MEASURES
Flammable limits: This material is noncombustible.
Extinguishing Media: This material is compatible with all extinguishing media.
Hazards to fire-fighters: See Section 3 for information on hazards when this material
is present in the area of a fire.
Fire-fighting equipment: The following protective equipment for fire fighters is
recommended when this material is present in the area of a
fire: chemical goggles, body-covering protective clothing,
chemical resistant gloves, and rubber boots.
6. ACCIDENTAL RELEASE MEASURES
Personal protection: Wear chemical goggles, body-covering protective clothing, chemical
resistant gloves, and rubber boots. See section 8.
Environmental Hazards: Sinks and mixes with water. High pH of this material is harmful to
aquatic life, see Section 12. Only water will evaporate from a spill of this
material.
Small spill cleanup: Mop up and neutralize liquid, then discharge to sewer in accordance with
federal, state and local regulations or permits.
Large spill cleanup: Keep unnecessary people away; isolate hazard area and deny entry. Do
not touch or walk through spilled material. Stop leak if you can do so
without risk. Prevent runoff from entering into storm sewers and ditches
which lead to natural waterways. Isolate, dike and store discharged
material, if possible. Use sand or earth to contain spilled material. If
containment is impossible, neutralize contaminated area and flush with
large quantities of water.
CERCLA RQ: There is no CERCLA Reportable Quantity for this material. If a spill
goes off site, notification of state and local authorities is recommended.
7. HANDLING AND STORAGE
Handling: Avoid contact with eyes, skin and clothing. Avoid breathing spray mist.
Keep container closed. Promptly clean residue from closures with cloth
dampened with water. Promptly clean up spills.
Storage: Keep containers closed. Store in clean steel or plastic containers.
Separate from acids, reactive metals, and ammonium salts. Storage
temperature 0-95潞 C. Loading temperature 45-95 潞 C. Do not store in
aluminum, fiberglass, copper, brass, zinc or galvanized containers.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
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Engineering controls: Use with adequate ventilation. Keep containers closed. Safety shower
and eyewash fountain should be within direct access.
Respiratory protection: Use a NIOSH-approved dust and mist respirator where spray mist
occurs. Observe OSHA regulations for respirator use (29 C.F.R.
搂1910.134)
Skin protection: Wear body-covering protective clothing and gloves.
Eye protection: Wear chemical goggles.
9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance: Thick liquid.
Color: Clear and colorless.
Odor: Odorless or musty odor.
pH: Approximately 12.4
1.41 g/cm3 (20潞C), 42.0潞 B茅, 11.75 lbs/gal
Specific gravity:
Solubility in water: Miscible.
10. STABILITY AND REACTIVITY
Stability: This material is stable under all conditions of use and storage.
Conditions to avoid: None.
Materials to avoid: Gels and generates heat when mixed with acid. May react with
ammonium salts resulting in evolution of ammonia gas. Flammable
hydrogen gas may be produced on contact with aluminum, tin, lead, and
zinc.
Hazardous decomposition
products: Hydrogen.
11. TOXICOLOGICAL INFORMATION
Acute Data: When tested for eye and skin irritation potential, a similar material
caused moderate irritation to the eyes and moderate irritation to the skin.
Human experience indicates that skin irritation occurs, particularly,
when sodium silicates get on clothes at the collar, cuffs or other areas
where contact and abrasion may occur.
The acute oral toxicity of this product has not been tested. When sodium
silicates were tested on a 100% solids basis, their single dose acute oral
LD50 in rats ranged from 1500 mg/kg to 3200 mg/kg. The acute oral
lethality resulted from nonspecific causes. This product contains
approximately 37.1% sodium silicate.
Subchronic Data: In a study of rats fed sodium silicate in drinking water for three months,
at 200, 600 and 1800 ppm, changes were reported in the blood chemistry
of some animals, but no specific changes to the organs of the animals due
to sodium silicate administration were observed in any of the dosage
groups. Another study reported adverse effects to the kidneys of dogs fed
sodium silicate in their diet at 2.4g/kg/day for 4 weeks, whereas rats fed
the same dosage did not develop any treatment-related effects. Decreased
numbers of births and survival to weaning was reported for rats fed
STAR鈩? Sodium Silicate Solution
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sodium silicate in their drinking water at 600 and 1200 ppm.
Special Studies: Sodium silicate was not mutagenic to the bacterium E. Coli when tested
in a mutagenicity bioassay. There are no known reports of
carcinogenicity of sodium silicates. Frequent ingestion over extended
periods of time of gram quantities of silicates is associated with the
formation kidney stones and other siliceous urinary calculi in humans.
Sodium silicate is not listed by IARC, NTP or OSHA as a carcinogen.
12. ECOLOGICAL INFORMATION
Eco toxicity: The following data is reported for sodium silicates on a 100% solids basis:
A 96 hour median tolerance for fish (Gambusia affnis) of 2320 ppm; a 96
hour median tolerance for water fleas (Daphnia magna) of 247 ppm; a 96
hour median tolerance for snail eggs (Lymnea) of 632 ppm; and a 96
hour median tolerance for Amphipoda of 160 ppm. This product
contains approximately 37.1% sodium silicate.
Environmental Fate: This material is not persistent in aquatic systems, but its high pH when
undiluted or unneutralized is acutely harmful to aquatic life. Diluted
material rapidly depolymerizes to yield dissolved silica in a form that is
indistinguishable from natural dissolved silica. It does not contribute to
BOD. This material does not bioaccumulate except in species that use
silica as a structural material such as diatoms and siliceous sponges.
Where abnormally low natural silica concentrations exist (less than 0.1
ppm), dissolved silica may be a limiting nutrient for diatoms and a few
other aquatic algal species. However, the addition of excess dissolved
silica over the limiting concentration will not stimulate the growth of
diatom populations; their growth rate is independent of silica
concentration once the limiting concentration is exceeded. Neither silica
nor sodium will appreciably bioconcentrate up the food chain.
Physical/Chemical: Sinks and mixes with water. Only water will evaporate from this
material.
13. DISPOSAL CONSIDERATIONS
Classification: Disposed material is not a hazardous waste.
Disposal Method: Dispose in accordance with federal, state and local regulations and
permits.
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Date Prepared: 03/10/05 5 of 5
14. TRANSPORT INFORMATION
DOT UN Status: This material is not regulated hazardous material for transportation.
15. REGULATORY INFORMATION
CERCLA: No CERCLA Reportable Quantity has been established for this material.
SARA TITLE III: Not an Extremely Hazardous Substance under 搂302. Not a Toxic
Chemical under 搂313. Hazard Categories under 搂搂311/312: Acute
TSCA: All ingredients of this material are listed on the TSCA inventory.
FDA: The use of sodium silicate is authorized by FDA as a boiler water additive
for the production of steam that will contact food pursuant to 21 CFR
搂173.310; as a component of zinc-silicon dioxide matrix coatings on food
contact surfaces pursuant to 21 CFR 搂175.390(c); as a GRAS substance
when migrating from cotton fabric used in dry food packaging pursuant
to 21 CFR 搂182.70; and as a GRAS substance when migrating to food
from paper and paperboard products pursuant to 21 CFR 搂182.90.
16. OTHER INFORMATION
Prepared by: John G. Blumberg
Supersedes revision of: 01/10/01
THE INFORMATION ON THIS SAFETY DATA SHEET IS BELIEVED TO BE ACCURATE AND IT IS THE BEST
INFORMATION AVAILABLE TO PQ CORPORATION THIS DOCUMENT IS INTENDED ONLY AS A GUIDE TO THE
APPROPRIATE PRECAUTIONS FOR HANDLING A CHEMICAL BY A PERSON TRAINED IN CHEMICAL HANDLING.
PQ CORPORATION MAKES NO WARRANTY OF MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR
IMPLIED WITH RESPECT TO SUCH INFORMATION OR THE PRODUCT TO WHICH IT RELATES, AND WE ASSUME
NO LIABILITY RESULTING FROM THE USE OR HANDLING OF THE PRODUCT TO WHICH THIS SAFETY DATA
SHEET RELATES. USERS AND HANDLERS OF THIS PRODUCT SHOULD MAKE THEIR OWN INVESTIGATIONS TO
DETERMINE THE SUITABILITY OF THE INFORMATION PROVIDED HEREIN FOR THEIR OWN PURPOSES.
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