MSDS Number: A2796 * * * * * Effective Date: 11/09/06 * * * * *
Supercedes: 02/12/04

Aluminum Hydroxide

1. Product Identification

Synonyms: Aluminum hydrate; Aluminum trihydrate; Hydrated
alumina
CAS No.: 21645-51-2
Molecular Weight: 78.00

Chemical Formula: Al(OH)3
Product Codes: 0518

2. Composition/Information on Ingredients

Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------

Aluminum Hydroxide 21645-51-2 98 - 100% Yes

3. Hazards Identification

Emergency Overview
--------------------------

WARNING! CAUSES IRRITATION TO EYES AND RESPIRATORY TRACT.

SAF-T-DATA(tm) Ratings (Provided here for your
convenience)

-----------------------------------------------------------------------------------------------------------

Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity
Rating: 1 - Slight
Contact Rating: 2 - Moderate
Lab Protective Equip:
GOGGLES; LAB COAT; PROPER GLOVES
Storage Color Code: Green (General
Storage)

Potential Health Effects
----------------------------------

Inhalation:
Causes irritation to the respiratory tract.
Symptoms may include coughing, shortness of breath.
Ingestion:

Not expected to be a health hazard via ingestion.
Skin Contact:

Not expected to be a health hazard from skin exposure.
Eye
Contact:
Causes irritation, redness, and pain.
Chronic
Exposure:
Repeated exposure may cause symptoms similar to those listed
for acute effects. Prolonged contact with skin may result in minor mechanical
irritation.
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:
Not expected to require first aid
measures. 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:

Immediately flush eyes with plenty of water for at least 15 minutes,
lifting lower and upper eyelids occasionally. Get medical attention
immediately.

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.
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

Ventilate area of leak or spill. Wear appropriate personal
protective equipment as specified in Section 8. Spills: Sweep up and
containerize for reclamation or disposal. Vacuuming or wet sweeping may be
used to avoid dust dispersal.

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:
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:
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:
White Powder.
Odor:

Odorless.
Solubility:
Practically insoluble in water.

Specific Gravity:
2.42
pH:
> 7 (Basic).

% Volatiles by volume @ 21C (70F):
0
Boiling Point:

No information found.
Melting Point:
300C (572F)

Vapor Density (Air=1):
Not applicable.
Vapor Pressure
(mm Hg):
Not applicable.
Evaporation Rate (BuAc=1):
No
information found.

10. Stability and Reactivity

Stability:
Stable under ordinary conditions of use and
storage. Aluminum hydroxide forms a gel on prolonged contact with water;
absorbs acids and carbon dioxide.
Hazardous Decomposition Products:

May produce oxides of aluminum.
Hazardous Polymerization:

Will not occur.
Incompatibilities:
Strong acids, strong
oxidizers. Aluminum hydroxide can react dangerously with bismuth.

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
------------------------------------ ----- ----------- -------------
Aluminum Hydroxide (21645-51-2) No No None

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
----------------------------------------------- ---- --- ----- ---------
Aluminum Hydroxide (21645-51-2) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Aluminum Hydroxide (21645-51-2) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Aluminum Hydroxide (21645-51-2) No No No No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Aluminum Hydroxide (21645-51-2) No No No

Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes 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! CAUSES
IRRITATION TO EYES AND RESPIRATORY TRACT.
Label Precautions:

Avoid contact with eyes, skin and clothing.
Wash thoroughly after
handling.
Avoid breathing dust.
Keep container closed.
Use only with
adequate ventilation.
Label First Aid:
In case of eye contact,
immediately flush eyes with plenty of water for at least 15 minutes. Remove
material from skin and clothing. If inhaled, remove to fresh air. If not
breathing, give artificial respiration. If breathing is difficult, give
oxygen. In all cases, get medical attention.
Product Use:

Laboratory Reagent.
Revision Information:
MSDS Section(s)
changed since last revision of document include: 3.
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.)