MSDS Number: P5491 * * * * * Effective Date: 05/19/08 * * * * *
Supercedes: 07/20/05

POTASSIUM BICARBONATE

1. Product Identification

Synonyms: Potassium acid carbonate; Carbonic acid,
monopotassium salt; Potassium hydrogen carbonate
CAS No.: 298-14-6

Molecular Weight: 100.12
Chemical Formula: KHCO3

Product Codes:
J.T. Baker: 2940, 2943, 2945, 5012

Mallinckrodt: 6732, 6736, 6748

2. Composition/Information on Ingredients

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

Potassium Bicarbonate 298-14-6 100% Yes

3. Hazards Identification

Emergency Overview
--------------------------
As
part of good industrial and personal hygiene and safety procedure, avoid all
unnecessary exposure to the chemical substance and ensure prompt removal from
skin, eyes and clothing.

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; PROPER GLOVES
Storage Color Code: Green (General
Storage)

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

Inhalation:
Mild alkaline irritant to respiratory system.
Coughing, sneezing, possible breathing difficulty in acute cases.

Ingestion:
No adverse effects expected.
Skin
Contact:
No adverse effects expected.
Eye Contact:
Mild
irritant, possible reddening due to alkaline effect or abrasion.

Chronic Exposure:
No adverse health effects expected.

Aggravation of Pre-existing Conditions:
No adverse health
effects expected.

4. First Aid Measures

Inhalation:
Remove to fresh air. Get medical attention
for any breathing difficulty.
Ingestion:
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:
Wash thoroughly with running
water. Get medical advice if irritation develops.

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:
Use
protective clothing and breathing equipment appropriate for the surrounding
fire.

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. Small amounts of residue may be flushed to sewer
with plenty of water.

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:
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:
Safety glasses. Maintain eye wash fountain and
quick-drench facilities in work area.

9. Physical and Chemical Properties

Appearance:
White crystals.
Odor:

Odorless.
Solubility:
36g in 100g of water.
Specific
Gravity:
2.17
pH:
No information found.
%
Volatiles by volume @ 21C (70F):
0
Boiling Point:
Not
applicable.
Melting Point:
100 - 120C (212 - 248F)
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:
May produce oxides
of carbon and the contained metal.
Hazardous Polymerization:

Will not occur.
Incompatibilities:
No incompatibility data
found. Potassium carbonyl, magnesium, chlorine trifluoride listed for the
carbonate.
Conditions to Avoid:
Heat, flame, other sources of
ignition.

11. Toxicological Information

No LD50/LC50 information found relating to normal routes of
occupational exposure.

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Potassium Bicarbonate (298-14-6) 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 Bicarbonate (298-14-6) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Potassium Bicarbonate (298-14-6) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Potassium Bicarbonate (298-14-6) No No No No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Potassium Bicarbonate (298-14-6) No No No

Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: No 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:
As part of good
industrial and personal hygiene and safety procedure, avoid all unnecessary
exposure to the chemical substance and ensure prompt removal from skin, eyes
and clothing.
Label Precautions:
None.
Label First
Aid:
Not applicable.
Product Use:
Laboratory Reagent.

Revision Information:
No Changes.
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.

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

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