MATERIAL SAFETY DATA SHEET
Mosher Limestone Company Limited
Upper Musquodoboit, Nova Scotia BON 2MO
Section 1
Phone 902-568-2654
Date: Dec 1, 2015
PRODUCT IDENTIFICATION: Agricultural Gypsum,
Industrial Gypsum Powder
NOTE
THESE PRODUCTS DO NOT MEET THE CRITERIA FOR A WORKPLACE HAZARDOUS MATERIALS
INFORMATION SERVICE (WHMIS) CONTROLLED PRODUCT.
CHEMICAL FAMILY:
CAS REGISTRY NUMBER:
OTHER CAS NUMBERS:
MOLECULAR FORMULA:
Calcium Sulfate Dihydrate
10101-41-4
1317-65-3
CaSO4 + H2O
Section II
INGREDIENTS
CALCIUM SULFATE:
CALCIUM CARBONATE:
TLV mg/m3
PEL mg/m3
80-100 %
0 to 20 %
10
15
Section III
PHYSICAL DATA
MELTING POINT:
SPECIFIC GRAVITY:
SOLUBILITY IN WATER:
APPEARANCE AND ODOR:
1450 DEGREES C - decomposes
2.32 - 2.96
0.2 %
off white to white powder,
odorless
Section IV
FIRE AND EXPLOSION HAZARD DATA
FLASH POINT:
non-combustible (does not burn)
EXTINGUISHING MEDIA:
Not applicable. Use extinguisher appropriate
to the material which is burning.
SPECIAL FIREFIGHTING PROCEDURES:
None. Will not burn or support
combustion.
Section V
HEALTH HAZARD DATA
EXPOSURE GUIDELINES:
TIME-WEIGHTED AVERAGE:(TLV-TWA): 10 mg/m3 - nuisance particulate
EFFECTS OF OVEREXPOSURE:
ACUTE:
EYES:
Dust
particles
as
"foreign
object"
may
cause
mild
eye
irritation.
Symptoms
include
watering and irritation. Flush with
lukewarm gently flowing water for
10 minutes holding eyelid open.
If irritation
persists consult
physician.
SKIN: No effect.
INHALATION: Can be irritating to respiratory tract. Symptoms include
sneezing and slight nose irritation. Remove from source. Consult
physician of conditions persist.
INGESTION: Non toxic by ingestion.
CHRONIC:
No adverse affects associated with repeated or prolonged exposure.
CARCINOGENICITY OF INGREDIENTS: Not carcinogenic
Considered nuisance dust. Causes little adverse effects on lungs and
does not produce disease or toxic effects elsewhere in the body.
Section VI
STABILITY AND REACTIVITY DATA
STABILITY:
HAZARDOUS POLYMERIZATION:
HAZARDOUS DECOMPOSITION PRODUCTS:
Stable
Does not occur
Above 1450 degree C.
releases oxides of
sulfur.
INCOMPATIBILITY - MATERIALS TO AVOID:
Acids:
CORROSIVITY TO METALS:
not corrosive.
Section VII
ACCIDENTAL RELEASE MEASURES
PRECAUTIONS: Provide adequate protective
chemicals that may react with spill.
equipment
and
ventilation.
Remove
HANDLING AND CLEANUP: Follow routine safe handling procedures. Use vacuum with
HEPA filter(s). Alternatively, dampen spilled material with water.
Contain material, shovel or sweep into containers for recycling or
disposal. May be disposed of as inert solid.
Section VIII
SPECIAL PROTECTION INFORMATION
RESPIRATORY PROTECTION: Where there is large scale use of this material, (eg.
bagging operations) engineering controls to reduce exposure may be
necessary. Use local exhaust ventilation and process enclosure to
control airborne dust. If ventilation procedures not effective, then
wear suitable protective equipment including approved respiratory
protection. If respiratory protection is required, institute a complete
respiratory
protection
program
including
selection,
fit
testing,
training, maintenance and inspection. Refer to the CSA Standard Z94.493, "Selection, Care, and Use of Respirators." available from the
Canadian Standards Association, Rexdale, Ontario, M9W 1R3.
EYE PROTECTION: Safety glasses suitable for dust protection.
SKIN PROTECTION: Coveralls or long sleeves and pants to prevent
accumulation of dust on skin as needed.
DISCLAIMER of LIABILITY:
As conditions and methods of use are beyond our control, we do not assume
any responsibility or liability for any use of this material.
Information
contained herein is believed to be true and accurate, but
all statements or
suggestions are made without warranty, expressed or
implied, regarding
accuracy of the information, the hazards connected
with the use of the
material, or the results obtained by the use
thereof.