MSDS Number: A2856 * * * * * Effective Date: 09/26/01 * * * * * Supercedes: 11/17/99
ALUMINUM POTASSIUM SULFATE
1. Product Identification
Synonyms: Sulfuric acid, aluminum potassium salt (2:1:1), dodecahydrate; potassium alum
dodecahydrate; Alum Potassium USP Powder TAC; Potassium alum; Potash alum; Alum;
Kalinite
CAS No.: 10043-67-1 (Anhydrous) 7784-24-9 (Dodecahydrate)
Molecular Weight: 474.38
Chemical Formula: AlK(SO4)2 12H2O
Product Codes:
J.T. Baker: 0546, 0547
Mallinckrodt: 3216
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Sulfuric Acid, Aluminum Potassium Salt 10043-67-1 98 - 100% Yes
(2:1:1)
3. Hazards Identification
Emergency Overview
--------------------------
WARNING! HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION
TO SKIN, EYES AND RESPIRATORY TRACT.
J.T. Baker SAF -T-DATA (tm) Ratings (Provided here for your convenience)
-----------------------------------------------------------------------------------------------------------
Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity Rating: 0 - None
Contact Rating: 1 - Slight
Lab Protective Equip: GOGGLES; LAB COAT
Storage Color Code: Orange (General Storage)
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Potential Health Effects
----------------------------------
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.
Explosion:
Not considered to be an explosion hazard.
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 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 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, 333% in boiling water
Density:
1.73
pH:
3.3 (0.2 M solution)
% Volatiles by volume @ 21C (70F):
0
Boiling Point:
ca. 200C (ca. 392F) Loses water
Melting Point:
92.5C (198F)
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:
Hydrolyzes to form dilute sulfuric acid. Toxic and corrosive oxides of sulfur may be formed
when heated to decomposition.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Corrosive to metals in the presence of water.
Conditions to Avoid:
Moisture and incompatibles.
11. Toxicological Information
Investigated as a reproductive effector.
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sulfuric Acid, Aluminum Potassium No No None
Salt (2:1:1) (10043-67-1)
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 Potassium Salt (2:1:1) Yes Yes Yes Yes
(10043-67-1)
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Sulfuric Acid, Aluminum Potassium Salt (2:1:1) Yes Yes No Yes
(10043-67-1)
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sulfuric Acid, Aluminum Potassium Salt No No No No
(2:1:1) (10043-67-1)
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Sulfuric Acid, Aluminum Potassium Salt No No No
(2:1:1) (10043-67-1)
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.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 1, 8.
Disclaimer:
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Mallinckrodt Baker, Inc. 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. MALLINCKRODT BAKER, 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, MALLINCKRODT
BAKER, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING
FROM USE OF OR RELIANCE UPON THIS INFORMATION.
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Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)
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