Name:
Potassium thiocyanate
Synonym:
Potassium rhodanid
CAS:
333-20-0
Section 1 - Chemical Product
MSDS Name:Potassium thiocyanate
Synonym:Potassium rhodanid
Synonym:Potassium rhodanid
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 333-20-0 | Potassium thiocyanate | >98% | 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.Light sensitive.Moisture sensitive.
Potential Health Effects
Eye:
Causes redness and pain.
Skin:
May cause skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
May cause headache. May cause nausea and vomiting.
Inhalation:
Harmful if inhaled. May cause respiratory tract irritation.
Prolonged exposure may result in dizziness and general weakness.
Chronic:
Not available.
Harmful by inhalation, in contact with skin and if swallowed.
Contact with acids liberates very toxic gas.Light sensitive.Moisture sensitive.
Potential Health Effects
Eye:
Causes redness and pain.
Skin:
May cause skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
May cause headache. May cause nausea and vomiting.
Inhalation:
Harmful if inhaled. May cause respiratory tract irritation.
Prolonged exposure may result in dizziness and general weakness.
Chronic:
Not available.
Section 4 - FIRST AID MEASURES
Eyes: 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. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
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. Substance is noncombustible.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
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.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.
Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Do not store in direct sunlight. Store in a tightly closed container. Keep away from acids.
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Do not store in direct sunlight. Store in a tightly closed container. Keep away from acids.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 333-20-0: United States OSHA: 5 mg/m3 TWA (listed under Cyanide anion).
Germany: (listed as cyanide anion): Skin absorber Netherlands: (listed as cyanide anion): 5 mg/m3 MAC (as CN) Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 333-20-0: United States OSHA: 5 mg/m3 TWA (listed under Cyanide anion).
Germany: (listed as cyanide anion): Skin absorber Netherlands: (listed as cyanide anion): 5 mg/m3 MAC (as CN) Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Crystals
Color: colorless or white
Odor: odorless
pH: 5.3-8.7 (5% aq.solution)
Vapor Pressure: < 1 hPa @ 20 deg C
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 173 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 500 deg C
Solubility in water: 2170 g/l (20C)
Specific Gravity/Density:
Molecular Formula: CKNS
Molecular Weight: 97.18
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, light, exposure to moist air or water.
Incompatibilities with Other Materials:
Acids, strong bases.
Hazardous Decomposition Products:
Hydrogen cyanide, carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, cyanide fumes.
Hazardous Polymerization: Will not occur.
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, light, exposure to moist air or water.
Incompatibilities with Other Materials:
Acids, strong bases.
Hazardous Decomposition Products:
Hydrogen cyanide, carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, cyanide fumes.
Hazardous Polymerization: Will not occur.
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:
Potassium thiocyanate - Not listed by ACGIH, IARC, or NTP.
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, mouse: LD50 = 590 mg/kg; Oral, rat: LD50 = 854 mg/kg.
Carcinogenicity:
Potassium thiocyanate - Not listed by ACGIH, IARC, or NTP.
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.
Canada
CAS# 333-20-0 is listed on Canadas DSL List.
CAS# 333-20-0 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 333-20-0 is listed on the TSCA inventory.
