NILE
CHEMICALS
Synonyms: ammonium ferric sulfate 
CAS No.: 10138-04-2 (Anhydrous) 7783-83-7 (Dodecahydrate) 
Molecular Weight: 482.20 
Chemical Formula: FeNH4(SO4)2.12H2O 
Product Codes: 936 
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Ferric Ammonium Sulfate 10138-04-2 99 - 100% Yes
Inhalation: May cause irritation to the respiratory tract. Symptoms may 
include coughing, sore throat, labored breathing, and chest pain. 
Ingestion: Large oral doses may cause irritation to the gastrointestinal 
tract. Low toxicity in small quantities but larger dosages may cause nausea, 
vomiting, diarrhea, and black stool. Pink urine discoloration is a strong 
indicator of iron poisoning. Liver damage, coma, and death from iron poisoning 
has been recorded. 
Skin Contact: May cause irritation with redness and pain. 
Eye Contact: May cause irritation, redness and pain. Crystals may be 
abrasive. 
Chronic Exposure: No information found. 
Aggravation of Pre-existing Conditions: Persons with pre-existing skin 
disorders or eye problems, or impaired liver, kidney or respiratory function may 
be more susceptible to the effects of the substance. 
Inhalation: Remove to fresh air. Get medical 
attention for any breathing difficulty. 
Ingestion: Give several glasses of water to drink to dilute. If large 
amounts were swallowed, get medical advice. 
Skin Contact: Immediately flush skin with plenty of water for at least 15 
minutes. Remove contaminated clothing and shoes. Wash clothing before reuse. 
Thoroughly clean shoes before reuse. Get medical attention if irritation 
develops. 
Eye Contact: Immediately flush eyes with plenty of water for at least 15 
minutes, lifting upper and lower eyelids occasionally. Get medical attention if 
irritation persists. 
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: -ACGIH Threshold Limit 
Value (TLV):
1 mg/m3 (TWA) soluble iron salt as Fe 
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: Pale violet, transparent crystals. 
Odor: Odorless. 
Solubility: Soluble in water. 
Specific Gravity: 1.71 
pH: No information found. 
% Volatiles by volume @ 21C (70F): 0 
Boiling Point: 230C (446F) Water 
Melting Point: 39 - 41C (102 - 106F) 
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: May emit toxic fumes of ammonia and 
sulfur oxide when heated to decomposition. 
Hazardous Polymerization: Will not occur. 
Incompatibilities: No incompatibility data found. 
Conditions to Avoid: Heat, moisture, incompatibles. 
No LD50/LC50 information found relating to normal routes of occupational exposure. Investigated as a mutagen.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Ferric Ammonium Sulfate No No None
(10138-04-2)
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.
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, INC. 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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