SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 22/JUL/2005
Date Updated: 14/MAR/2005
Version 1.2
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name DIATOMACEOUS EARTH ACID-WASHED, NOT
FURTHER CALCINED
Product Number D3877
Company Sigma-Aldrich Pty. Ltd.
12 Anella Avenue
Castle Hill NSW 2154
Australia
Technical Phone # +61 2 9841 0555 (1800 800 097)
Fax +61 2 9841 0500 (1800 800 096)
Emergency Phone # +44 8701906777 (1800 448 465)
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
CALCINED DIATOMACEOUS EARTH 91053-39-3 293-303-4 None
Ingredient Name Percent CAS # EC no Annex I
Index Number
CRISTOBALITE, < 6 UM <= 70 14464-46-1 231-545-4 None
DIAMETER
Symbols: T
R-Phrases: 45
May cause cancer.
QUARTZ, PARTICLE SIZE <= 5.5 14808-60-7 238-878-4 None
LESS THAN 6 MICRONS
Symbols: T
R-Phrases: 49
May cause cancer by inhalation.
Formula Si2O
Synonyms CHROMOSORB P
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
May cause cancer by inhalation.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER SKIN CONTACT
In case of contact, immediately wash skin with soap and copious
amounts of water.
AFTER EYE CONTACT
In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician.
5 - Fire Fighting Measures
EXTINGUISHING MEDIA
Suitable: Water spray. Carbon dioxide, dry chemical powder, or
appropriate foam.
SPECIAL RISKS
Specific Hazard(s): Emits toxic fumes under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear respirator, chemical safety goggles, rubber boots, and
heavy rubber gloves.
METHODS FOR CLEANING UP
Sweep up, place in a bag and hold for waste disposal. Avoid
raising dust. Ventilate area and wash spill site after material
pickup is complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe dust. Avoid contact
with eyes, skin, and clothing. Avoid prolonged or repeated
exposure.
STORAGE
Conditions of Storage: Keep tightly closed.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Mechanical exhaust required. Use
sufficient natural or mechanical ventilation to keep dust level
below PEL.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling.
EXPOSURE LIMITS
Country Source Type Value
USA OSHA. PEL 0.05 mg/m3
USA OSHA. PEL 0.1 mg/m3
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: <10X PEL, Use an N95 quarter or half mask
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respirator; <50X PEL, use a full face respirator equipped with N95
filters; <200X PEL, use a powered air purifying respirator
(positive pressure) with N95 filters; >200X PEL, use a full face,
type C supplied air respirator (continuous flow mode).
Hand Protection: Compatible chemical-resistant gloves.
Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Physical State: Solid
Property Value At Temperature or Pressure
pH N/A
BP/BP Range N/A
MP/MP Range N/A
Flash Point N/A
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density N/A
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Materials to Avoid: Strong acids, Hydrogen fluoride.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Nature of decomposition products
not known.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
SIGNS AND SYMPTOMS OF EXPOSURE
Prolonged inhalation of crystalline silica may result in
silicosis, a disabling pulmonary fibrosis characterized by
fibrotic changes and miliary nodules in the lungs, a dry cough,
shortness of breath, emphysema, decreased chest expansion, and
increased susceptibility to tuberculosis. In advanced stages,
loss of appetite, pleuritic pain, and total incapacity to work.
Advanced silicosis may result in death due to cardiac failure or
destruction of lung tissue. Crystalline silica is classified as
SIGMA - D3877 www.sigma-aldrich.com Page 3
group 1 "known to be carcinogenic to humans" by IARC and
"sufficient evidence" of carcinogenicity by the NTP. To the best
of our knowledge, the chemical, physical, and toxicological
properties have not been thoroughly investigated.
ROUTE OF EXPOSURE
Skin Contact: May cause skin irritation.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes eye irritation.
Inhalation: Material is irritating to mucous membranes and upper
respiratory tract. May be harmful if inhaled.
Ingestion: May be harmful if swallowed.
TARGET ORGAN INFORMATION
Lungs.
CHRONIC EXPOSURE - CARCINOGEN
Result: This product contains crystalline silica (CS), which is
considererd a hazard by inhalation. IARC has classified
inhalation of CS as a carcinogen for humans (Group 1). CS is
listed by NTP as a known human carcinogen. Inhalation of CS is
also a known cause of silicosis, a noncancerous lung disease.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Dissolve or mix the material with a combustible
solvent and burn in a chemical incinerator equipped with an
afterburner and scrubber. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
Non-hazardous for road transport.
IMDG
Non-hazardous for sea transport.
IATA
Non-hazardous for air transport.
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: T
Toxic.
R-PHRASES: 49
May cause cancer by inhalation.
S-PHRASES: 26 36
In case of contact with eyes, rinse immediately with plenty of
water and seek medical advice. Wear suitable protective
clothing.
16 - Other Information
WARRANTY
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The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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