Material Safety Data Sheet U.S. Department of Labor
May be used to comply with Occupational Safety and Health Administration
OSHA's Hazard Communication Standard (Non-Mandatory Form)
29 CFR 1910.1200. Standard must be Form Approved
consulted for specific requirements. OMB No. 1218-0072
Dolomite (Calcium magnesium carbonate)
IDENTITY Note: Blank spaces are not permitted. If any item is not applicable, or no
information is available, the space must be marked to indicate that.
(CaCO3 * MgCO3)
Dolomite (all sizes)
Section I
Manufacturer's Name and Address Emergency Telephone Number
Chemical Lime Company Chemtrec 800-424-9300
3724 Hulen Street Information Phone Number Date Prepared
Fort Worth, Texas 76107 817-732-8164 3/30/2006
Section II - Hazardous Ingredients/Identity Information
Other Limits
Hazardous Components CAS Common Name OSHA PEL ACGIH TLV % (optional)
Dolomite 16389-88-1 Dolomite 15 mg/m3 10 mg/m3 >98%
Silicon dioxide 14808-60-7 Quartz *see note below 0.025 mg/m3 4 mg/m3 <2%
*SiO2 OSHA PEL: 10 mg/m3 divided by (the percentage of silica in the dust plus 2) (respirable)
Section III - Physical/Chemical Characteristics
2850 oC dec 730 oC 2.6 - 2.9 g/cc
Boiling Point Melting Point Specific Gravity
N.A. N.A. N.A.
Vapor Pressure (mm Hg) Vapor Density Evaporation Rate
Not soluble in water. pH = 8-9 @ 25oC
Solubility in Water
White or gray powder, lump or stone; odorless
Appearance and Odor
Section IV - Fire and Explosion Hazard Data
Flash Point LEL/UEL Flammable Limits Extinguishing Media
N.A. N.A. N.A. Not Combustible -- Use extinguishing agent for surrounding fire
Special Firefighting Procedures/Unusual Fire and Explosion Hazards
Material will not burn.
Section V - Reactivity Data
Stability Conditions to Avoid (stability - related)
Stable Material is stable
Incompatibility (Materials to Avoid)
Acids: Reacts with acids to form CO2. Ignites on contact with fluorine.
Incompatible with ammonium salts and magnesium.
Will not occur (none)
Hazardous Polymerization/Hazardous Decomposition of Byproducts
Section VI - Health Hazard Data
Inhalation, Ingestion
Route(s) of Entry:
Health Hazards (Acute and Chronic)
Nuisance dust: Avoid eye contact and breathing dust. Eye contact will cause irritation to occur,
breathing will cause coughing, sneezing, or inflammation.
SiO2 SiO2
Carcinogenicity: OSHA? NTP/IARC Monographs?
Respirable crystalline silica from occupational sources is classified by IARC as a Group I Carcinogen.
California Proposition 65: Silica is on the Governor's Proposition 65 list. Components used in this product may
contain trace amounts of inherent naturally occurring elements (such as, but not limited to arsenic, cadmium)
that are on the Governor's Proposition 65 list.
Chemical Lime Company Dolomite MSDS page 2/2
Section VI - Health Hazard Data (continued)
Signs and Symptoms of Exposure
Eye irritation; coughing or breathing problems.
Medical Conditions Generally Aggravated by Exposure
Respiratory problems, asthma, dermatitis or skin or eye sensitivity.
Emergency and First Aid Procedure
Flush contaminated area with excess water. If eye contact , rinse eye with eye wash solution or excess water
and seek medical attention immediately.
Section VII - Precautions for Safe Handling and Use
Steps to be Taken in Case Material is Released or Spilled
Sweep up and avoid breathing dust. Keep away from acids and other incompatible material.
Place in metal container.
Waste Disposal Method
Dispose of contaminated material based on other contaminates.
Precautions to be Taken in Handling and Storage
Keep away from acids and other incompatible materials.
Other Precautions
Avoid eye contact and breathing dust.
HEALTH: 1 FLAMMABILITY: 0 REACTIVITY: 0
NFPA Rating:
HEALTH: 1 FLAMMABILITY: 0 REACTIVITY: 0
HMIS Rating:
D2A
WHMIS Rating:
Section VIII - Control Measures
Respiratory Protection (Specify Type)
Dust masks meeting the NIOSH N95 rating are sufficient for casual exposure. (42 CFR)
Do not dispose of dust with
Ventilation Local Exhaust Special
Vent to dust collector combustible materials.
Mechanical (General) Other
Vent to meet TLV requirements
Protective Gloves Other Protective Clothing or Equipment
Dry cloth or leather gloves Full clothing to cover arms and legs, safety glasses or face shield.
Work/Hygienic Practices
Eye wash and shower station should be readily available.
Chemical Lime Company provides the information contained herein in good faith but makes no representation as to its
comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling
of the material by a properly trained person. Individuals receiving this information must consult their own technical
and legal advisors and/ or exercise their own judgment in determining its appropriateness for a particular purpose.
Chemical Lime Company makes no representations or warranties, either express or implied, including without limitation
and warranties of merchantability or fitness for a particular purpose with respect to the information set forth herein
or the product(s) to which the information refers. Accordingly, Chemical Lime Company will not be responsible or
liable for any claims, losses or damages resulting from the use of or reliance upon or failure to use this information.
References: Sax, N.I. & R.J. Lewis Sr. (1989) "Dangerous Properties of Industrial Materials", New York: Van Nostrand Reinhold Co. Ltd.
Lewis, R.J. (1997) "Hazardous Chemicals Desk Reference", New York: Van Nostrand Reinhold Co. Ltd. KSA
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