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Material
Safety Data Sheets of Ammonium aluminium sulfate
1. Product Identification
Synonyms: Aluminum ammonium disulfate dodecahydrate;Aluminum ammonium
disulfate, 12-hydrate; Ammonium alum; sulfuric acid aluminum ammonium
salt (2:1:1), dodecahydrate
CAS No.: 7784-25-0 (Anhydrous) 7784-26-1 (Dodecahydrate)
Molecular Weight: 453.32
Chemical Formula: AlNH4(SO4)2 . 12H2O
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------
---------
Sulfuric Acid, Aluminum Ammonium Salt 7784-25-0 98 - 100% Yes
(2:1:1)
3. Hazards Identification
Emergency Overview
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WARNING! HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO
SKIN, EYES AND RESPIRATORY TRACT.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 2 - Moderate
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 2 - Moderate
Lab Protective Equip: GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES
Storage Color Code: Green (General Storage)
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Potential Health Effects
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This material hydrolyzes in water to form sulfuric acid, which
is responsible for the irritating effects given below.
Inhalation:
Causes irritation to the respiratory tract. Symptoms may include
coughing, shortness of breath.
Ingestion:
Causes irritation to the gastrointestinal tract. Symptoms may
include nausea, vomiting and diarrhea. There have been two cases
of fatal human poisonings from ingestion of 30 grams of alum.
Skin Contact:
Causes irritation to skin. Symptoms include redness, itching,
and pain.
Eye Contact:
Causes irritation, redness, and pain.
Chronic Exposure:
No information found.
Aggravation of Pre-existing Conditions:
No information found.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen. Get medical attention.
Ingestion:
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of
water. Never give anything by mouth to an unconscious person.
Get medical attention immediately.
Skin Contact:
Wipe off excess material from skin then 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 upper and lower eyelids occasionally. Get medical attention.
5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard. May release flammable ammonia
if involved in a fire.
Explosion:
Not considered to be an explosion hazard. Sealed containers may
rupture when heated.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire. Keep
in mind that addition of water can cause the formation of sulfuric
acid.
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.
6. Accidental Release Measures
Cover spill with sodium bicarbonate or soda ash and mix. Ventilate
area of leak or spill. Keep unnecessary and unprotected people
away from area of spill. Wear appropriate personal protective
equipment as specified in Section 8. Spills: Pick up and place
in a suitable container for reclamation or disposal, using a method
that does not generate dust.
7. Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated
area. Protect against physical damage. Isolate from incompatible
substances. 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.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
-OSHA Permissible Exposure Limit (PEL):
2 mg/m3 (TWA) soluble salts as Al
-ACGIH Threshold Limit Value (TLV):
2 mg/m3 (TWA) soluble salts as Al
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, a half-face dust/mist respirator
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
dust/mist respirator 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.
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 impervious protective clothing, including boots, gloves,
lab coat, apron or coveralls, as appropriate, to prevent skin
contact.
Eye Protection:
Use chemical safety goggles and/or full face shield where dusting
or splashing of solutions is possible. Maintain eye wash fountain
and quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance: Colorless crystals.
Odor: Odorless.
Solubility: 14% in water, 200% in boiling water
Density: 1.65
pH: 4.6 (0.05M solution)
% Volatiles by volume @ 21C (70F): 0
Boiling Point: 280C (536F) Decomposes.
Melting Point: 94.5C (201F)
Vapor Density (Air=1): No information found.
Vapor Pressure (mm Hg): No information found.
Evaporation Rate (BuAc=1): No information found.
10. Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
Toxic oxides of nitrogen, sulfur dioxide, ammonia, and sulfur
trioxide may form at elevated temperatures. Hydrolyzes to form
sulfuric acid.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Contact with alkalis may release ammonia gas. Corrosive to metals
in the presence of water.
Conditions to Avoid:
Moisture and incompatibles.
11. Toxicological Information
No LD50/LC50 information found relating to normal routes of occupational
exposure.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sulfuric Acid, Aluminum Ammonium No No None
Salt (2:1:1) (7784-25-0)
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
13. Disposal Considerations
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.
14. Transport Information
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- -----
---------
Sulfuric Acid, Aluminum Ammonium Salt (2:1:1) Yes Yes Yes Yes
(7784-25-0)
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ----
-----
Sulfuric Acid, Aluminum Ammonium Salt (2:1:1) Yes Yes No No
(7784-25-0)
--------\Federal, State & International Regulations - Part
1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sulfuric Acid, Aluminum Ammonium Salt No No No No
(2:1:1) (7784-25-0)
--------\Federal, State & International Regulations - Part
2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Sulfuric Acid, Aluminum Ammonium Salt No No No
(2:1:1) (7784-25-0)
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes 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.
16. Other Information
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning:
WARNING! HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO
SKIN, EYES AND RESPIRATORY TRACT.
Label Precautions:
Avoid breathing dust.
Keep container closed.
Use only with adequate ventilation.
Wash thoroughly after handling.
Avoid contact with eyes, skin and clothing.
Label First Aid:
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of
water. Never give anything by mouth to an unconscious person.
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. In case of
contact, wipe off excess material from skin then immediately flush
eyes or skin with plenty of water for at least 15 minutes. Remove
contaminated clothing and shoes. Wash clothing before reuse. In
all cases, get medical attention.
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