MSDS Number: P6181 * * * * * Effective Date: 11/21/08 * * * * *
Supercedes: 01/25/06

POTASSIUM THIOCYANATE

1. Product Identification

Synonyms: Potassium sulfocyanate; Potassium thiocyanide;
Thiocyanic acid, potassium salt; Potassium isothiocyanate
CAS No.:
333-20-0
Molecular Weight: 97.18
Chemical Formula: KSCN

Product Codes:
J.T. Baker: 3326, 5578
Mallinckrodt: 7168

2. Composition/Information on Ingredients

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

Potassium Thiocyanate 333-20-0 90 - 100% Yes

3. Hazards Identification

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

WARNING! HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN,
EYES AND RESPIRATORY TRACT.

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

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

Health Rating: 2 - Moderate (Life)
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:
Causes irritation to the respiratory tract.
Symptoms may include coughing, shortness of breath.
Ingestion:

May cause psychosis, vomiting, disorientation, weakness, low blood
pressure, convulsions and death which may be delayed. The probable lethal dose
is between 15-30 grams.
Skin Contact:
Causes irritation to
skin. Symptoms include redness, itching, and pain.
Eye Contact:

Causes irritation, redness, and pain.
Chronic Exposure:

Prolonged or repeated skin exposure may cause dermatitis. Repeated
ingestion of small amounts may cause weakness, confusion, central nervous
system effects, nausea and skin eruptions.
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:
Induce vomiting immediately as directed
by medical personnel. Never give anything by mouth to an unconscious person.
Get medical attention.
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 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. May emit toxic and flammable
fumes of cyanide if involved in a 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.

7. Handling and Storage

Keep in a tightly closed container, stored in a cool, dry,
ventilated area. Protect against physical damage. Isolate from oxidizing
materials. Store in the dark. 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
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, deliquescent crystals.

Odor:
Odorless.
Solubility:
Very soluble in
water.
Density:
1.89
pH:
No information found.

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

500C (932F)
Melting Point:
173C (343F)
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. Slowly decomposes on exposure to light.
Hazardous
Decomposition Products:
Burning may produce nitrogen oxides, sulfur
compounds, and possibly cyanides.
Hazardous Polymerization:

Will not occur.
Incompatibilities:
Strong oxidizers, active
halogen compounds.
Conditions to Avoid:
Light and
incompatibles.

11. Toxicological Information

Oral rat LD50: 854 mg/kg. Investigated as a mutagen,
reproductive effector.

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Potassium Thiocyanate (333-20-0) 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 Thiocyanate (333-20-0) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Potassium Thiocyanate (333-20-0) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Potassium Thiocyanate (333-20-0) No No Yes No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Potassium Thiocyanate (333-20-0) 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: 3 Flammability: 0
Reactivity: 0
Label Hazard Warning:
WARNING! HARMFUL IF
SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN, 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:
If swallowed, induce vomiting immediately as directed by medical
personnel. Never give anything by mouth to an unconscious person. 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. 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:
No Changes.

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.)