Potassium silicate

Synonym
Chemical Name
Chemical Family
Potassium Silicate

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Section 4. First Aid Measures
Eye ContactCheck for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water
for at least 15 minutes. Get medical attention.
Skin ContactIn case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient.
Remove contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before
reuse. Get medical attention.
Serious Skin ContactWash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek medical
attention.
InhalationIf inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical attention if symptoms appear.
Serious InhalationNot available.
IngestionDo NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to
an unconscious person. If large quantities of this material are swallowed, call a physician immediately.
Loosen tight clothing such as a collar, tie, belt or waistband.
Serious IngestionNot available.

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Section 5. Fire and Explosion Data
Flammability of the Product Non-flammable.
Auto-Ignition Temperature Not applicable.
Not applicable.
Flash Points
Flammable LimitsNot applicable.
Products of CombustionNot available.
Fire Hazards in Presence of Not applicable.
Various Substances
Risks of explosion of the product in presence of mechanical impact: Not available.
Explosion Hazards in
Risks of explosion of the product in presence of static discharge: Not available.
Presence of Various
Substances
Fire Fighting MediaNot applicable.
and Instructions
Special Remarks onNot available.
Fire Hazards
Special Remarks on Explosion Heating a mixture of powdered magnesium and silica causes a violent explosion.
Hazards(Quartz)

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Section 6. Accidental Release Measures
Small SpillUse appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by
spreading water on the contaminated surface and dispose of according to local and regional authority
requirements.
Large SpillUse a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading
water on the contaminated surface and allow to evacuate through the sanitary system. Be careful that the
product is not present at a concentration level above TLV. Check TLV on the MSDS and with local
authorities.
Potassium Silicate

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Section 7. Handling and Storage
PrecautionsDo not breathe dust. Wear suitable protective clothing. In case of insufficient ventilation, wear suitable
respiratory equipment. If you feel unwell, seek medical attention and show the label when possible. Avoid
contact with skin and eyes. Keep away from incompatibles such as oxidizing agents.
Keep container tightly closed. Keep container in a cool, well-ventilated area.
Storage

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Section 8. Exposure Controls/Personal Protection
Engineering ControlsUse process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels
below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep
exposure to airborne contaminants below the exposure limit.
Personal ProtectionSplash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.
Gloves.
Personal Protection in Case of Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be
a Large Spillused to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a
specialist BEFORE handling this product.
Exposure LimitsQuartz
TWA: 0.1 (mg/m3) from ACGIH (TLV) [United States] Inhalation Respirable.
TWA: 0.1 (mg/m3) from OSHA (PEL) [United States] Inhalation Respirable.
TWA: 0.3 (mg/m3) from OSHA (PEL) [United States] Inhalation Total.
TWA: 0.05 (mg/m3) from NIOSH [United States] Inhalation Respirable.
TWA: 0.1 (mg/m3) [Canada] Inhalation Respirable.
TWA: 0.3 [Canada] Inhalation Total.
TWA: 0.3 [United Kingdom (UK)] Inhalation Total.
Consult local authorities for acceptable exposure limits.

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Section 9. Physical and Chemical Properties
Physical state and appearance Solid. (Powdered solid.)OdorNot available.
TasteNot available.
248.44 g/mole
Molecular Weight
ColorWhite.
pH (1% soln/water)Not applicable.
Not available.
Boiling Point
Melting PointNot available.
Not available.
Critical Temperature
Specific GravityNot available.
Vapor PressureNot applicable.
Vapor DensityNot available.
VolatilityNot available.
Not available.
Odor Threshold
Water/Oil Dist. Coeff.Not available
Not available.
Ionicity (in Water)
Dispersion PropertiesNot available
SolubilityUsually very slowly soluble in cold water. Considered almost insoluble in water.
Insoluble in alcohol.
Potassium Silicate

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Section 10. Stability and Reactivity Data
The product is stable.
Stability
Instability TemperatureNot available.
Incompatible materials.
Conditions of Instability
Incompatibility with various Reactive with oxidizing agents, acids.
substances
Not available.
Corrosivity
Special Remarks onIncompatiblity with powferfull oxidizers: fluorine, chlorine trifluoride, manganese trioxide, oxygen diflluoride,
Reactivityhydrogen peroxide, etc.; Incompatible with acetylene and ammonia. This chemical is attacked by Hydrogen
Fluoride. Silica will dissolve in Hydrofluoric Acid and produce the corrosive gas Silicon Tetrafluoride (SiF4).
May be attacked by strong alkalis, especially when hot. (Quartz)
Special Remarks onNot available.
Corrosivity
PolymerizationWill not occur.

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Section 11. Toxicological Information
Routes of EntryInhalation. Ingestion.
Toxicity to AnimalsLD50: Not available.
LC50: Not available.
Chronic Effects on Humans CARCINOGENIC EFFECTS: Classified 1 (Proven for human.) by IARC, 1 (Clear evidence.) by NTP, +
(Proven.) by NIOSH [Quartz]. Classified A2 (Suspected for human.) by ACGIH [Quartz].
Other Toxic Effects onHazardous in case of skin contact (irritant), of ingestion, .
Slightly hazardous in case of inhalation (lung irritant).
Humans
Special Remarks onLowest Published Lethal Dose/Conc:
Toxicity to AnimalsLCL [Human] - Route: Inhalation; Dose: 300 ug/m3/10Y intermittent (Quartz)
Special Remarks onMay cause cancer. (Quartz)
Chronic Effects on Humans
Special Remarks on otherAcute Potential Health Effects:
Toxic Effects on HumansSkin: Causes skin irritation.
Eyes: Causes eye irritation. May cause eye injury or damage.
Inhalation: Causes respiratory tract irritation.
This product contains quartz (crystalline silica). Acute pneumoconiosis from overwhelming exposure to
silica dust has occurred. Coughing and irritation of throat are early symptoms.
Inhalation of quartz (crystalline silica) is classified as a human carcinogen. Risk of cancer depends upon
duration and level of exposure. May also affect liver.
Chronic exposure to quartz (crystalline silica) can also cause silicosis, a form of lung scaring that can cause
shortness of breath, reduced lung function. May also affect blood.
Ingestion: May be harmful if swallowed. Can cause digestive/gastrointestinal tract irritation.

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Section 12. Ecological Information
EcotoxicityNot available.
BOD5 and CODNot available.
Products of BiodegradationPossibly hazardous short term degradation products are not likely. However, long term degradation
products may arise.
Toxicity of the ProductsThe product itself and its products of degradation are not toxic.
of Biodegradation
Not available.
Special Remarks on the
Products of Biodegradation
Potassium Silicate

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Section 13. Disposal Considerations
Waste DisposalWaste must be disposed of in accordance with federal, state and local environmental
control regulations.

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Section 14. Transport Information
DOT ClassificationNot a DOT controlled material (United States).
Not applicable.
Identification
Not applicable.
Special Provisions for
Transport
DOT (Pictograms)

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Section 15. Other Regulatory Information and Pictograms
California prop. 65: This product contains the following ingredients for which the State of California has
Federal and State
found to cause cancer, birth defects or other reproductive harm, which would require a warning under the
Regulations
statute: Quartz (crystalline silica)
California prop. 65: This product contains the following ingredients for which the State of California has
found to cause cancer which would require a warning under the statute: Quartz (crystalline silica)
TSCA 8(b) inventory: Potassium Silicate; Quartz (crystalline silica)
CaliforniaCalifornia prop. 65: This product contains the following ingredients for which the State of California has
Proposition 65found to cause cancer which would require a warning under the statute: Quartz (crystalline silica)
Warnings
California prop. 65: This product contains the following ingredients for which the State of California has
found to cause birth defects which would require a warning under the statute: No products were found.
Other RegulationsOSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).
For CAS no. 1312-76-1:
EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances (EINECS
No. 215-199-1).
Canada: Listed on Canadian Domestic Substance List (DSL).
China: Listed on National Inventory.
Japan: Listed on National Inventory (ENCS).
Korea: Listed on National Inventory (KECI).
Philippines: Listed on National Inventory (PICCS).
Australia: Listed on AICS.
WHMIS (Canada) CLASS D-2B: Material causing other toxic effects (TOXIC).
Other Classifications
DSCL (EEC)R36/37/38- Irritating to eyes,S26- In case of contact with eyes, rinse
respiratory system and skin.immediately with plenty of water and seek
medical advice.
S37- Wear suitable gloves.
Health Hazard
HMIS (U.S.A.)2 National Fire Protection
0 Flammability
0 Association (U.S.A.)
Fire Hazard
2 0 Reactivity
Health
Reactivity
0
Specific hazard
Personal Protection
E
WHMIS (Canada)
(Pictograms)
Potassium Silicate
DSCL (Europe)
(Pictograms)
TDG (Canada)
(Pictograms)
ADR (Europe)
(Pictograms)
Protective Equipment
Gloves.
Lab coat.
Dust respirator. Be sure to use an
approved/certified respirator or
equivalent. Wear appropriate respirator
when ventilation is inadequate.

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SECTION 16 - ADDITIONAL INFORMATION
N/A