Name:
Potassium Thiocyanate P.A.
Synonym:
Thiocyanic Acid, Potassium Salt; Potassium Isothiocyanate
CAS:
333-20-0
Section 1 - Chemical Product
MSDS Name:Potassium Thiocyanate P.A.
Synonym:Thiocyanic Acid, Potassium Salt; Potassium Isothiocyanate
Synonym:Thiocyanic Acid, Potassium Salt; Potassium Isothiocyanate
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 333-20-0 | Potassium thiocyanate | 100 | 206-370-1 |
| Hazard Symbols: XN Risk Phrases: 20/21/22 32 |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed.
Contact with acids liberates very toxic gas.The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
Causes eye irritation. Poisoning can cause swelling of the eyelids, delirium, blurred vision, and hallucinations.
Skin:
Causes skin irritation. May be absorbed through the skin in harmful amounts.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Chronic:
Effects may be delayed.
Harmful by inhalation, in contact with skin and if swallowed.
Contact with acids liberates very toxic gas.The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
Causes eye irritation. Poisoning can cause swelling of the eyelids, delirium, blurred vision, and hallucinations.
Skin:
Causes skin irritation. May be absorbed through the skin in harmful amounts.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Chronic:
Effects may be delayed.
Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid. May cause irritation of the digestive tract and possible burns.
Inhalation:
Get medical aid immediately. Remove from exposure 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:
Antidote: Always have a cyanide antidote kit on hand when working with cyanide compounds. Get medical advice to use.
Skin:
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid. May cause irritation of the digestive tract and possible burns.
Inhalation:
Get medical aid immediately. Remove from exposure 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:
Antidote: Always have a cyanide antidote kit on hand when working with cyanide compounds. Get medical advice to use.
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:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.
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:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.
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.
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. Use with adequate ventilation.
Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed.
Storage:
Keep from contact with oxidizing materials. Keep away from acids.
Store in a cool, dry area away from incompatible substances.
Wash thoroughly after handling. Use with adequate ventilation.
Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed.
Storage:
Keep from contact with oxidizing materials. Keep away from acids.
Store in a cool, dry area away from incompatible substances.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Good general ventilation should be sufficient to control airborne levels. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective clothing to minimize contact with skin.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Good general ventilation should be sufficient to control airborne levels. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower.
Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective clothing to minimize contact with skin.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Appearance: colourless
Odor: odorless
pH: 7.0
Vapor Pressure: Negligible
Viscosity: No data
Boiling Point: 932 deg F
Freezing/Melting Point: 344 deg F
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: soluble in water
Specific Gravity/Density: 1.9
Molecular Formula: KSCN
Molecular Weight: 97.165
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Temperatures above recommended temperatures, incompatible materials, dust generation, acids, excess heat.
Incompatibilities with Other Materials:
Acids (mineral, non-oxidizing, e.g. hydrochloric acid, hydrofluoric acid, muriatic acid, phosphoric acid), acids (mineral, oxidizing, e.g. chromic acid, hypochlorous acid, nitric acid, sulfuric acid), acids (organic, e.g. acetic acid, benzoic acid, formic acid, methanoic acid, oxalic acid), strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, cyanide fumes.
Hazardous Polymerization: Has not been reported.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Temperatures above recommended temperatures, incompatible materials, dust generation, acids, excess heat.
Incompatibilities with Other Materials:
Acids (mineral, non-oxidizing, e.g. hydrochloric acid, hydrofluoric acid, muriatic acid, phosphoric acid), acids (mineral, oxidizing, e.g. chromic acid, hypochlorous acid, nitric acid, sulfuric acid), acids (organic, e.g. acetic acid, benzoic acid, formic acid, methanoic acid, oxalic acid), strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, 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, rat: LD50 = 854 mg/kg.
Carcinogenicity:
Potassium thiocyanate - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
CAS# 333-20-0: XL1925000 LD50/LC50:
CAS# 333-20-0: Oral, mouse: LD50 = 594 mg/kg; Oral, rat: LD50 = 854 mg/kg.
Carcinogenicity:
Potassium thiocyanate - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
Section 15 - REGULATORY INFORMATION
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 13 Keep away from food, drink and animal feeding
stuffs.
WGK (Water Danger/Protection)
CAS# 333-20-0: No information available.
United Kingdom Occupational Exposure Limits
CAS# 333-20-0: OES-United Kingdom, TWA (listed as ** undefined
**): as CN: 5 mg/m3 TWA; (does not include hydrogen cyanide,
cyanogen or cyanogen chl
Canada
CAS# 333-20-0 is listed on Canadas DSL List.
CAS# 333-20-0 is not listed on Canadas Ingredient Disclosure List.
Exposure Limits
CAS# 333-20-0 (listed as ** undefined **): OEL-ARAB Republic of Egypt:
TWA 5 mg/m3;Skin
OEL-AUSTRALIA:TWA 5 mg/m3;Skin
OEL-AUSTRIA:TWA 5 mg/m3;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:TWA 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 NETHERLANDS:TWA 5 mg/m3;Skin
OEL-THE PHILIPPINES:TWA 5 mg/m3;Skin
OEL-POLAND:TWA 0.3 mg/m3
OEL-SWEDEN:STEL 5 mg/m3;Skin
OEL-SWITZERLAND:TWA 5 mg/m3;STEL 10 mg/m3;Skin
OEL-THAILAND:TWA 5 mg/m3
OEL-UNITED KINGDOM:TWA 5 mg/m3;Skin
US FEDERAL
TSCA
CAS# 333-20-0 is listed on the TSCA inventory.
