Univar USA Inc.
6100 Carillon Point
Kirkland, WA 98033
(425) 889-3400
For Emergency Assistance involving chemicals call - CHEMTREC (800) 424-9300
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The Version Date for this MSDS is : 02/27/2002
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PRODUCT IDENTIFICATION
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PRODUCT NAME: N(R) SODIUM SILICATE SOLUTION
MSDS#: PQN
DATE ISSUED: 08/28/00
SUPERSEDES: 07/31/00
ISSUED BY: 008808
MATERIAL SAFETY DATA SHEET
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Product name: N(R) Sodium silicate solution
Product description: A 3.22 weight ratio sodium silicate, 37.5% solution
in water
Manufacturer: PQ Corporation
P. O. Box 840
Valley Forge, PA USA
Phone number: 610-651-4200
Fax number: 610-651-4504
In case of emergency call. 1610-651-4200
For customer service call: 1610-651-4330
2. COMPOSITION/INFORMATION ON INGREDIENTS
Chemical and Common Name CAS # Wt. % OSHA PEL ACGIH TL v
Water 7732-18-5 62.5% Not Established Not Established
Silicic acid, sodium salt; 1344-09-8 37.5% Not Established Not Established
Sodium silicate
3. HAZARDS IDENTIFICATION
Emergency Overview: Clear to hazy, colorless, odorless, thick liquid.
Causes eye, skin, and digestive tract irritation.
Spray mist causes irritation to respiratory tract.
High pH is harmful to aquatic life. Noncombustible.
Spills are slippery. Reacts with acids, ammonium salts,
reactive metals and some organics.
Eye contact: Causes irritation.
Skin contact: Causes irritation.
Inhalation: Spray mist irritating to respiratory system.
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.
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 C. Loading temperature 45-95 C. Do not store in
aluminum, fiberglass, copper, brass, zinc or
galvanized containers.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
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. 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 to hazy white.
Odor: Odorless or musty odor.
PH.: Approximately 11.3
Specific gravity: 1.39 g/cm3 (20C), 41 Be,11.62 lbs/gal
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 primary eye irritation potential
according to OECD Guidelines, Section 405, this
material produced corneal, iridal and conjunctival
irritation. Some eye irritation was still present 14
days after treatment, although the average primary
irritation score had declined from 19.7 after I day
to 4.0 after 14 days. When tested for primary skin
irritation potential, this material produced
irritation with a primary irritation index of 3 to
abraded skin and 0 to intact skin. Human experience
confirms that irritation occurs when this material
gets on clothes at the collar, cuffs or other areas
where 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 LD, in rats ranged from 1500
mg/kg to 3200 mg/kg. The acute oral lethality resulted
from nonspecific causes. This product contains
approximately 37.5% sodium silicate.
Suhchronic 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 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 37.5% 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: Neutralize and landfill solids in accordance with
federal, state and local regulations. Flush neutral
liquid to sewer accordance with federal, state and
local regulations and permits.
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 302. Not a
Toxic Chemical under 313. Hazard Categories under
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 173.310; as a
component of zinc-silicon dioxide matrix coatings on
food contact surfaces pursuant to 21 CFR 175.390(c);
as a GRAS substance when migrating from cotton fabric
used in dry food packaging pursuant to 21 CFR 182.70;
and as a GRAS substance when migrating to food
from paper and paperboard products pursuant to 21 CFR
182.90.
16. OTHER INFORMATION
For Additional Information:
Contact: MSDS Coordinator - Univar USA
During business hours, Pacific Time - (425) 889-3400
NOTICE
Univar USA, expressly disclaims all express or implied warranties of merchantibility and fitness
for a particular purpose, with respect to the product or information provided herein, and shall
under no circumstances be liable for incidental or consequential damages.
Do not use ingredient information and/or ingredient percentages in this MSDS as a product
specification. For product specification information refer to a Product Specification Sheet and/or a
Certificate of Analysis. These can be obtained from your local Univar USA Sales Office.
All information appearing herein is based upon data obtained from the manufacturer and/or
recognized technical sources. While the information is believed to be accurate, Univar USA
makes no representations as to its accuracy or sufficiency. Conditions of use are beyond Univar
USA's control and therefore users are responsible to verify this data under their own operating
conditions to determine whether the product is suitable for their particular purposes and they
assume all risks of their use, handling, and disposal of the product, or from the publication or use
of, or reliance upon, information contained herein. This information relates only to the product
designated herein, and does not relate to its use in combination with any other material or in any
other process.
END OF MSDS
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