NILE
CHEMICALS
Synonyms:  Calcium Sulphate 
CAS No.: 7778-18-9 
Molecular Weight: 136.14 
Chemical Formula: CaSO4 
Product Codes: 31132 
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Calcium Sulfate (anhydrous) 7778-18-9 98 - 100% Yes
Inhalation: Causes irritation to the respiratory tract. Symptoms may 
include coughing, shortness of breath. 
Ingestion: May cause obstruction in stomach, as it hardens with moisture. 
Symptoms include stomach pain, distress. 
Skin Contact: Causes irritation, redness, pain. 
Eye Contact: Causes irritation, redness, and pain. 
Chronic Exposure: No information found. 
Aggravation of Pre-existing Conditions: No information found. 
Inhalation: Remove to fresh air. If not breathing, 
give artificial respiration. If breathing is difficult, give oxygen. Get medical 
attention. 
Ingestion: Induce vomiting immediately as directed by medical personnel. 
Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Immediately flush skin with plenty of water for at least 15 
minutes. Remove contaminated clothing and shoes. Get medical attention. Wash 
clothing before reuse. Thoroughly clean shoes before reuse. 
Eye Contact: Immediately flush eyes with plenty of water for at least 15 
minutes, lifting lower and upper eyelids occasionally. Get medical attention 
immediately. 
Note to Physician: Drinking glycerin, gelatin solutions, or large volumes 
of water may delay the hardening of calcium sulfate in the stomach. Surgical 
relief of obstruction, particularly at the pylorus, may be necessary. 
Fire: Not considered to be a fire hazard. 
Explosion: Not considered to be an explosion hazard. 
Fire Extinguishing Media: Use any means suitable for extinguishing 
surrounding fire. 
Special Information: In the event of a fire, wear full protective 
clothing and NIOSH-approved self-contained breathing apparatus with full 
facepiece operated in the pressure demand or other positive pressure mode. 
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8.
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Airborne Exposure Limits: -OSHA Permissible Exposure 
Limit (PEL):15 mg/m3 total dust, 5 mg/m3 respirable fraction
-ACGIH Threshold Limit Value (TLV):10 mg/m3 (TWA) inhalable fraction 
Ventilation System: A system of local and/or general exhaust is 
recommended to keep employee exposures below the Airborne Exposure Limits. Local 
exhaust ventilation is generally preferred because it can control the emissions 
of the contaminant at its source, preventing dispersion of it into the general 
work area. Please refer to the ACGIH document, Industrial Ventilation, A 
Manual of Recommended Practices, most recent edition, for details. 
Personal Respirators (NIOSH Approved): If the 
exposure limit is exceeded and engineering controls are not feasible, a half 
facepiece particulate respirator (NIOSH type N95 or better filters) may be worn 
for up to ten times the exposure limit or the maximum use concentration 
specified by the appropriate regulatory agency or respirator supplier, whichever 
is lowest.. A full-face piece particulate respirator (NIOSH type N100 filters) 
may be worn up to 50 times the exposure limit, or the maximum use concentration 
specified by the appropriate regulatory agency, or respirator supplier, 
whichever is lowest. If oil particles (e.g. lubricants, cutting fluids, 
glycerine, etc.) are present, use a NIOSH type R or P filter. For emergencies or 
instances where the exposure levels are not known, use a full-facepiece 
positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators 
do not protect workers in oxygen-deficient atmospheres. 
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles. Maintain eye wash fountain 
and quick-drench facilities in work area. 
Appearance: White granules or powder. 
Odor: Odorless. 
Solubility: Slight, 0.24g in 100g of water. 
Specific Gravity: 2.96 
pH: No information found. 
% Volatiles by volume @ 21C (70F): 0 
Boiling Point: 1193C (2179F) 
Melting Point: 1450C (2642F) Monoclinic 
Vapor Density (Air=1): No information found. 
Vapor Pressure (mm Hg): No information found. 
Evaporation Rate (BuAc=1): No information found. 
Stability: Very hygroscopic. Stable under ordinary 
conditions of use and storage. 
Hazardous Decomposition Products: Burning may produce sulfur oxides. 
Hazardous Polymerization: Will not occur. 
Incompatibilities: Diazomethane, aluminum, phosphorous. 
Conditions to Avoid: Air, moisture, and incompatibles. 
No LD50/LC50 information found relating to normal routes of occupational exposure.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Calcium Sulfate (anhydrous) No No None
(7778-18-9)
Environmental Fate: No information found. 
Environmental Toxicity: No information found. 
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
Not regulated.
Australian Hazchem Code: None allocated. 
Poison Schedule: None allocated. 
WHMIS: This MSDS has been prepared according to the hazard criteria of 
the Controlled Products Regulations (CPR) and the MSDS contains all of the 
information required by the CPR. 
Disclaimer: Nile Chemicals. 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 
using this product. Individuals receiving the information must exercise their 
independent judgment in determining its appropriateness for a particular 
purpose. NILE CHEMICALS. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS 
OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH 
HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, NILE 
CHEMICALS. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE 
UPON THIS INFORMATION. 
 
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