Name:
Kieselguhr
Synonym:
Infursorial earth; Diatomaceous earth; Diatomaceous silica; Siliceous earth; Kieselguhr is a soft siliceous solid composed of skeletons of small prehistoric aquatic plants. Contains primarily silica
CAS:
61790-53-2
Section 1 - Chemical Product
MSDS Name:Kieselguhr
Synonym:Infursorial earth; Diatomaceous earth; Diatomaceous silica; Siliceous earth; Kieselguhr is a soft siliceous solid composed of skeletons of small prehistoric aquatic plants. Contains primarily silica
Synonym:Infursorial earth; Diatomaceous earth; Diatomaceous silica; Siliceous earth; Kieselguhr is a soft siliceous solid composed of skeletons of small prehistoric aquatic plants. Contains primarily silica
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 61790-53-2 | Kieselguhr | 100 | unlisted |
| Hazard Symbols: None Listed. Risk Phrases: None Listed. |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
Dust may cause mechanical irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
Contains crystalline silica which may lead to respiratory abnormalities and silicosis. Causes irritation of the mucous membrane and upper respiratory tract.
Chronic:
Chronic exposure may cause lung damage. May cause silicosis-disabling pulmonary fibrosis characterized by fibrotic changes and miliary nodules in the lungs, dry cough, shortness of breath, emphysema, decreased chest expansion and increased susceptibility to tuberculosis.
Not available.
Potential Health Effects
Eye:
Dust may cause mechanical irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
Contains crystalline silica which may lead to respiratory abnormalities and silicosis. Causes irritation of the mucous membrane and upper respiratory tract.
Chronic:
Chronic exposure may cause lung damage. May cause silicosis-disabling pulmonary fibrosis characterized by fibrotic changes and miliary nodules in the lungs, dry cough, shortness of breath, emphysema, decreased chest expansion and increased susceptibility to tuberculosis.
Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Flush skin with plenty of 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:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid if irritation or symptoms occur.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively. Persons with pre-existing upper respiratory and lung disease may be at increased risk from exposure to this product.
Skin:
Flush skin with plenty of 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:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid if irritation or symptoms occur.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively. Persons with pre-existing upper respiratory and lung disease may be at increased risk from exposure to this product.
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:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use extinguishing media most appropriate for the surrounding fire.
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:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use extinguishing media most appropriate for the surrounding fire.
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. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Use only in a well-ventilated area.
Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use only in a well-ventilated area.
Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated 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 general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 61790-53-2: United Kingdom, WEL - TWA: 1.2 mg/m3 TWA (respirable dust) United Kingdom, WEL - STEL: 3.6 mg/m3 STEL (respirable dust) Belgium - TWA: 3 mg/m3 VLE (respirable fraction); 10 mg/m3 VLE (inhalable fraction) Germany: 4 mg/m3 TWA (inhalable fraction) Malaysia: 10 mg/m3 TWA (particulate matter containing no asbestos <1% crystalline sili Spain: 10 mg/m3 VLA-ED (inhalable fraction, this value is for the particulated matter t Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 61790-53-2: United Kingdom, WEL - TWA: 1.2 mg/m3 TWA (respirable dust) United Kingdom, WEL - STEL: 3.6 mg/m3 STEL (respirable dust) Belgium - TWA: 3 mg/m3 VLE (respirable fraction); 10 mg/m3 VLE (inhalable fraction) Germany: 4 mg/m3 TWA (inhalable fraction) Malaysia: 10 mg/m3 TWA (particulate matter containing no asbestos <1% crystalline sili Spain: 10 mg/m3 VLA-ED (inhalable fraction, this value is for the particulated matter t Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHAs 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Color: slightly gray
Odor: odorless
pH: 9-10
Vapor Pressure: 10 mm Hg @ 1710
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: insoluble
Specific Gravity/Density:
Molecular Formula:
Molecular Weight:
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials:
Hydrogen fluoride, strong acids.
Hazardous Decomposition Products:
Oxides of silicon.
Hazardous Polymerization: Will not occur.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat.
Incompatibilities with Other Materials:
Hydrogen fluoride, strong acids.
Hazardous Decomposition Products:
Oxides of silicon.
Hazardous Polymerization: Will not occur.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 61790-53-2: VV7311000 LD50/LC50:
Not available.
Carcinogenicity:
Kieselguhr - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 61790-53-2: VV7311000 LD50/LC50:
Not available.
Carcinogenicity:
Kieselguhr - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Ecotoxicity:
Fish: Carp: LC50 > 10000 mg/L; 72 Hr; UnspecifiedNo information available.
Fish: Carp: LC50 > 10000 mg/L; 72 Hr; UnspecifiedNo information available.
Section 13 - DISPOSAL CONSIDERATIONS
Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
Section 14 - TRANSPORT INFORMATION
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
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# 61790-53-2: No information available.
Canada
CAS# 61790-53-2 is listed on Canadas NDSL List.
CAS# 61790-53-2 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 61790-53-2 is listed on the TSCA inventory.
