NILE
CHEMICALS
CAS No.: 7778-80-5 
Molecular Weight: 174.26 
Chemical Formula: K2SO4 
Product Codes: 161181 
Ingredient CAS No Percent Hazardous
------------------ ------------ ------------ ----------
Potassium Sulfate 7778-80-5 90 - 100% No
Inhalation: Possible nuisance dust effect, sneezing or coughing. 
Ingestion: Large oral dosages may produce gastrointestinal disturbances 
and irritation. 
Skin Contact: 
Not expected to be a health hazard from skin exposure. 
Eye Contact: No adverse effects expected but dust may cause mechanical 
irritation. 
Chronic Exposure: Not expected to be a health hazard. Potassium poisoning 
may occur in rare cases of long exposure or ingestion. 
Aggravation of Pre-existing Conditions: No adverse health effects 
expected. 
Inhalation: Remove to fresh air. Get medical 
attention for any breathing difficulty. 
Ingestion: If large amounts were swallowed, give water to drink and get 
medical advice. 
Skin Contact: Wash exposed area with soap and water. Get medical advice 
if irritation develops. 
Eye Contact: Wash thoroughly with running water. Get medical advice if 
irritation develops. 
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: Use protective clothing and breathing equipment 
appropriate for the surrounding fire. 
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: None established. 
Ventilation System: In general, dilution ventilation is a satisfactory 
health hazard control for this substance. However, if conditions of use create 
discomfort to the worker, a local exhaust system should be considered. 
Personal Respirators (NIOSH Approved): For conditions of use where 
exposure to dust or mist is apparent and engineering controls are not feasible, 
a particulate respirator (NIOSH type N95 or better filters) may be worn. 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-face 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: Safety glasses. Maintain eye wash fountain and 
quick-drench facilities in work area. 
Appearance: White granules or powder. 
Odor: Odorless. 
Solubility: Soluble in water. 
Density: 2.66 
pH: ca. 7 
% Volatiles by volume @ 21C (70F): 0 
Boiling Point: 1689C (3072F) 
Melting Point: 1067C (1953F) 
Vapor Density (Air=1): No information found. 
Vapor Pressure (mm Hg): No information found. 
Evaporation Rate (BuAc=1): No information found. 
Stability: Stable under ordinary conditions of use 
and storage. 
Hazardous Decomposition Products: Oxides of sulfur and potassium. 
Hazardous Polymerization: Will not occur. 
Incompatibilities: Aluminum and magnesium. 
Conditions to Avoid: Incompatibles. 
LD50 Oral Rat: 6600 mg/kg.
--------\Cancer Lists\-----------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- ------
Potassium Sulfate (7778-80-5) No No None
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.
--------\Chemical Inventory Status - Part 1\-------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Potassium Sulfate (7778-80-5) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\-------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Potassium Sulfate (7778-80-5) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\--------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- ------
Potassium Sulfate (7778-80-5) No No No No
--------\Federal, State & International Regulations - Part 2\--------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Potassium Sulfate (7778-80-5) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: No Chronic: No Fire: No Pressure: No
Reactivity: No (Pure / Solid)
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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