MSDS Number: P5631 * * * * * Effective Date: 10/22/04 * * * * *
Supercedes: 05/14/03

POTASSIUM CHLORIDE

1. Product Identification

Synonyms: Potassium monochloride
CAS No.:
7447-40-7
Molecular Weight: 74.55
Chemical Formula: KCl

Product Codes:
J.T. Baker: 3040, 3044, 3045, 3046, 3052, 4001,
4920
Mallinckrodt: 0865, 0890, 3279, 3610, 3619, 3925, 4251, 4858, 4910,
5480, 6156, 6205, 6230, 6275, 6307, 6335, 6363, 6788, 6801, 6838, 6841, 6842,
6845, 6849, 6851, 6858, 6867, 7207, 7535, 7590, 7618, 7769, V483

2. Composition/Information on Ingredients

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

Potassium Chloride 7447-40-7 100% Yes

3. Hazards Identification

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

CAUTION! MAY BE HARMFUL IF SWALLOWED. MAY CAUSE IRRITATION TO SKIN,
EYES, AND RESPIRATORY TRACT.

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

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

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)

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

Inhalation:
Inhalation of high concentrations of dust may
cause nasal or lung irritation.
Ingestion:
Large quantities can
produce gastrointestinal irritation and vomiting. May produce weakness and
circulatory problems. May affect heart. In severe cases, ingestion may be
fatal.
Skin Contact:
Contact may cause irritation or rash,
particularly with moist skin.
Eye Contact:
Potassium chloride
is moderate eye irritant. Redness, tearing, possible abrasion can occur.

Chronic Exposure:
No information found.
Aggravation of
Pre-existing Conditions:
Persons with impaired kidney function may be
more susceptible to the effects of the substance.

4. First Aid Measures

Inhalation:
Remove to fresh air. If not breathing, give
artificial respiration. If breathing is difficult, give oxygen.

Ingestion:
Induce vomiting immediately as directed by medical
personnel. Never give anything by mouth to an unconscious person. Call a
physician.
Skin Contact:
Remove any contaminated clothing. Wash
skin with soap and water for at least 15 minutes. Get medical attention if
irritation develops or persists.
Eye Contact:
In case of
contact, immediately flush eyes with plenty of water for at least 15 minutes,
lifting upper and lower eyelids occasionally. Call a physician if irritation
persists.

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: 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. 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:
A system of local and/or general exhaust is
recommended to keep employee exposures as low as possible. 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):
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 crystals or powder.
Odor:

Odorless.
Solubility:
28.1 g/100g of water @ 0C.

Density:
1.987
pH:
ca. 7 Saturated aq. sl. @ 15C

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

1500C (2732F) Sublimes.
Melting Point:
772C (1422F)

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:
Oxides of the
contained metal and halogen, possibly also free, or ionic halogen.

Hazardous Polymerization:
Will not occur.

Incompatibilities:
Bromine trifluoride; potassium permanganate
plus sulfuric acid.
Conditions to Avoid:
No information found.

11. Toxicological Information

Oral rat LD50: 2600 mg/kg; irritation eye rabbit (standard
Draize): 500 mg/24 hr mild; investigated as a mutagen.

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Potassium Chloride (7447-40-7) 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
----------------------------------------------- ---- --- ----- ---------
Potassium Chloride (7447-40-7) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Potassium Chloride (7447-40-7) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Potassium Chloride (7447-40-7) No No No No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Potassium Chloride (7447-40-7) No No No

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:
CAUTION! MAY BE
HARMFUL IF SWALLOWED. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY
TRACT.
Label Precautions:
Avoid breathing dust.
Keep
container closed.
Use with adequate ventilation.
Avoid contact with
eyes, skin and clothing.
Wash thoroughly after handling.
Label First
Aid:
If swallowed, induce vomiting immediately as directed by medical
personnel. Never give anything by mouth to an unconscious person. In case of
contact, immediately flush eyes or skin with plenty of water for at least 15
minutes. If irritation develops call a physician. If inhaled, remove to fresh
air. Get medical attention for any breathing difficulty.
Product
Use:
Laboratory Reagent.
Revision Information:
MSDS
Section(s) changed since last revision of document include: 3.

Disclaimer:

************************************************************************************************

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.

************************************************************************************************

Prepared by: Environmental Health & Safety
Phone Number:
(314) 654-1600 (U.S.A.)