MSDS Name: Potassium thiocyanate
Catalog Numbers: AC196580000, AC196585000, AC424230000, AC424230050, AC424235000, S71230, S712301, S75192, S77756, NC9083422, NC9143438, NC9176709, NC9500039, NC9668442, NC9729090, NC9791271, NC9945820, NC9947676, P317-100, P317-500, S71230-1, XXP317100LB, XXP31710KGS, XXP31712KG, XXP3171KG
Synonyms: Thiocyanic acid, potassium salt; Potassium rhodanide; Rhocya; Potassium sulfocyanate.
Company Identification:
              Fisher Scientific
              1 Reagent Lane
              Fair Lawn, NJ 07410
For information, call: 201-796-7100
Emergency Number: 201-796-7100
For CHEMTREC assistance, call: 800-424-9300
For International CHEMTREC assistance, call: 703-527-3887

Section 4 - First Aid Measures

Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid.
Skin: In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion: If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation.
Notes to Physician: Treat symptomatically and supportively.

Section 5 - Fire Fighting Measures

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media: Use extinguishing media most appropriate for the surrounding fire.
Flash Point: Not available.
Autoignition Temperature: Not available.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 2; Flammability: 0; Instability: 0

Section 6 - Accidental Release Measures

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation.

Section 7 - Handling and Storage

Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid breathing dust.
Storage: Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from acids. Store protected from moisture. Store protected from light.

Section 8 - Exposure Controls, Personal Protection

Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits

Chemical Name	ACGIH	NIOSH	OSHA - Final PELs
Potassium thiocyanate	none listed	none listed	none listed

OSHA Vacated PELs: Potassium thiocyanate: No OSHA Vacated PELs are listed for this chemical.
Personal Protective Equipment
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin: Wear appropriate gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Section 9 - Physical and Chemical Properties

Physical State: Crystalline powder
Appearance: white
Odor: odorless
pH: 5.3-8.7 (5% soln)
Vapor Pressure: Negligible
Vapor Density: No data
Evaporation Rate:Negligible
Viscosity: No data
Boiling Point: 500 deg C (dec)
Freezing/Melting Point:173 deg C
Decomposition Temperature:Not available.
Solubility: Soluble.
Specific Gravity/Density:1.89
Molecular Formula:KSCN
Molecular Weight:97.18

Section 10 - Stability and Reactivity

Chemical Stability: Stable under normal temperatures and pressures. May decompose when exposed to light.
Conditions to Avoid: Light, dust generation, moisture, excess heat.
Incompatibilities with Other Materials: Acids, bases, alcohols, amines, ammonia, amides, glycols.
Hazardous Decomposition Products: Hydrogen cyanide, oxides of nitrogen, oxides of sulfur, cyanide fumes.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information

RTECS#:
CAS# 333-20-0: XL1925000
LD50/LC50:
CAS# 333-20-0:
Oral, mouse: LD50 = 594 mg/kg;
Oral, mouse: LD50 = 590 mg/kg;
Oral, rat: LD50 = 854 mg/kg;
Carcinogenicity:
CAS# 333-20-0: Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Epidemiology: No information found.
Teratogenicity: No information found.
Reproductive Effects: No information found.
Neurotoxicity: No information found.
Mutagenicity: No information found.
Other Studies: The hazards associated with isocyanates may be seen in this product. See actual entry in RTECS for complete information .

Section 12 - Ecological Information

Ecotoxicity: No data available. No information available.
Environmental: No information available.
Physical: No information available.
Other: Biodegradable.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

	US DOT	IATA	RID/ADR	IMO	Canada TDG
Shipping Name:	No information available.				No information available.
Hazard Class:
UN Number:
Packing Group:

Section 15 - Regulatory Information

US FEDERAL

TSCA
CAS# 333-20-0 is listed on the TSCA inventory.
Health & Safety Reporting List
None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
None of the chemicals in this material have a SNUR under TSCA.
SARA

CERCLA Hazardous Substances and corresponding RQs
None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
None of the chemicals in this product have a TPQ.
SARA Codes
CAS # 333-20-0: acute, chronic.
Section 313
No chemicals are reportable under Section 313.
Clean Air Act:
This material does not contain any hazardous air pollutants. This material does not contain any Class 1 Ozone depletors. This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
None of the chemicals in this product are listed as Hazardous Substances under the CWA. None of the chemicals in this product are listed as Priority Pollutants under the CWA. None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA:
None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
CAS# 333-20-0 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 32 Contact with acids liberates very toxic gas.

Safety Phrases:
S 36/37 Wear suitable protective clothing and
gloves.
S 50A Do not mix with acids.

WGK (Water Danger/Protection)
CAS# 333-20-0: No information available.
Canada - DSL/NDSL
CAS# 333-20-0 is listed on Canada's DSL List.
Canada - WHMIS
This product has a WHMIS classification of D2B.
Canadian Ingredient Disclosure List
CAS# 333-20-0 (listed as Cyanides, inorganic salts) is listed on the Canadian Ingredient Disclosure List.
Exposure Limits
CAS# 333-20-0 (listed as cyanide anion): OEL-ARAB Republic of Egypt:TW
A 5 mg/m3;Skin OEL-AUSTRALIA:TWA 5 mg/m3;Skin OEL-AUSTRIA:TWA 5 mg/m
3;Skin OEL-CZECHOSLOVAKIA:TWA 3 mg/m3;STEL 10 mg/m3 JAN9 OEL-DENMARK
:TWA 5 mg/m3;Skin OEL-FINLAND:TWA 5 mg/m3;STEL 10 mg/m3 OEL-FRANCE:T
WA 5 mg/m3;Skin OEL-GERMANY:TWA 5 mg/m3;Skin OEL-HUNGARY:TWA 0.3 mg/
m3;STEL 0.6 mg/m3;Skin OEL-INDIA:TWA 4 mg/m3;Skin OEL-THE NETHERLAND
S:TWA 5 mg/m3;Skin OEL-THE PHILIPPINES:TWA 5 mg/m3;Skin OEL-POLAND:T
WA 0.3 mg/m3 OEL-SWEDEN:STEL 5 mg/m3;Skin OEL-SWITZERLAND:TWA 5 mg/m
3;STEL 10 mg/m3;Skin OEL-THAILAND:TWA 5 mg/m3 OEL-UNITED KINGDOM:TWA
5 mg/m3;Skin

Section 16 - Additional Information

MSDS Creation Date: 12/12/1997
Revision #5 Date: 9/29/2003

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.