Name:
Sodium thiocyanate
Synonym:
Sodium thiocyanate; Sodium rhodanide; Sodium sulfocyanate
CAS:
540-72-7
Section 1 - Chemical Product
MSDS Name:Sodium thiocyanate
Synonym:Sodium thiocyanate; Sodium rhodanide; Sodium sulfocyanate
Synonym:Sodium thiocyanate; Sodium rhodanide; Sodium sulfocyanate
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 540-72-7 | Sodium thiocyanate | >98 | 208-754-4 |
| 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.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be absorbed through the skin in harmful amounts. Allergic reactions have been reported.
Ingestion:
May cause irritation of the digestive tract. Ingestion of thiocyanates may cause disorientation, weakness, low blood pressure, confusion, psychotic behavior, muscular spasms, convulsions, and death.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Thiocyanates used in drug therapy have caused nervous system effects such as fine motor weakness of the arms and legs. Elevated levels of thiocyanate in the blood will inhibit the uptake of iodine by the thyroid gland resulting in thyroid effects. Prolonged absorption of thiocyanates may produce various skin eruptions, running nose, dizziness, cramps, nausea and vomiting.
Harmful by inhalation, in contact with skin and if swallowed.
Contact with acids liberates very toxic gas.Light sensitive.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be absorbed through the skin in harmful amounts. Allergic reactions have been reported.
Ingestion:
May cause irritation of the digestive tract. Ingestion of thiocyanates may cause disorientation, weakness, low blood pressure, confusion, psychotic behavior, muscular spasms, convulsions, and death.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Thiocyanates used in drug therapy have caused nervous system effects such as fine motor weakness of the arms and legs. Elevated levels of thiocyanate in the blood will inhibit the uptake of iodine by the thyroid gland resulting in thyroid effects. Prolonged absorption of thiocyanates may produce various skin eruptions, running nose, dizziness, cramps, nausea and vomiting.
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:
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:
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.
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.
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. 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.
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 CAS# 540-72-7: 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) Russia: 10 mg/m3 TWA 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 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. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
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 CAS# 540-72-7: 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) Russia: 10 mg/m3 TWA 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 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. 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: Solid
Color: white
Odor: Odorless
pH: Neutral in water
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Decomposes
Freezing/Melting Point: 287 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: 139g/100ml (21C)
Specific Gravity/Density: >1.0
Molecular Formula: NaSCN
Molecular Weight: 81.06
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.
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# 540-72-7: XL2275000 LD50/LC50:
CAS# 540-72-7: Oral, mouse: LD50 = 362 mg/kg; Oral, mouse: LD50 = 360 mg/kg; Oral, mouse: LD50 = 809 mg/kg; Oral, rat: LD50 = 764 mg/kg; Oral, rat: LD50 = 1180 mg/kg; Oral, rat: LD50 = 232 mg/kg; Oral, rat: LD50 = 837 mg/kg.
Data on potassium thiocyanate, a very similar chemical: TDLo: 428 mg/kg, toxic psychosis, hallucinations, distorted perceptions, gastritis.
distorted perceptions, convulsions, muscle weakness.
LDLo: 500 mg/kg.
300 mg/kg.
Carcinogenicity:
Sodium thiocyanate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 540-72-7: XL2275000 LD50/LC50:
CAS# 540-72-7: Oral, mouse: LD50 = 362 mg/kg; Oral, mouse: LD50 = 360 mg/kg; Oral, mouse: LD50 = 809 mg/kg; Oral, rat: LD50 = 764 mg/kg; Oral, rat: LD50 = 1180 mg/kg; Oral, rat: LD50 = 232 mg/kg; Oral, rat: LD50 = 837 mg/kg.
Data on potassium thiocyanate, a very similar chemical: TDLo: 428 mg/kg, toxic psychosis, hallucinations, distorted perceptions, gastritis.
distorted perceptions, convulsions, muscle weakness.
LDLo: 500 mg/kg.
300 mg/kg.
Carcinogenicity:
Sodium thiocyanate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Other No information available.
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:
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 36/37 Wear suitable protective clothing and
gloves.
S 50A Do not mix with acids.
WGK (Water Danger/Protection)
CAS# 540-72-7: 1
Canada
CAS# 540-72-7 is listed on Canadas DSL List.
CAS# 540-72-7 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 540-72-7 is listed on the TSCA inventory.
