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sodium thiocyanate 540-72-7 MSDS
Name: Sodium Thiocyanate 98%(Titr. Dry) Material Safety Data Sheet
Synonym: Sodium Thiocyanide; Thiocyanate Sodium; Sodium Sulfocyanide
CAS: 540-72-7
Section 1 - Chemical Product   MSDS Name:Sodium Thiocyanate 98%(Titr. Dry) Material Safety Data Sheet
Synonym:Sodium Thiocyanide; Thiocyanate Sodium; Sodium Sulfocyanide

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content 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.Hygroscopic.Light sensitive.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be metabolized to cyanide which in turn acts by inhibiting cytochrome oxidase impairing cellular respiration.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. Metabolism may release cyanide, which may result in headache, dizziness, weakness, collapse, unconsciousness and possible death.
Inhalation:
May cause respiratory tract irritation. May be metabolized to cyanide which in turns act by inhibiting cytochrome oxidase impairing cellular respiration. Inhalation may result in symptoms similar to cyanide poisoning which include tachypnea, hyperpnea (abnormally rapid or deep breathing), and dyspnea (labored breathing) followed rapidly by respiratory depression. Pulmonary edema may occur.
Chronic:
May be metabolized to cyanide which in turn acts by inhibiting cytochrome oxidase impairing cellular respiration. Chronic exposure to cyanide solutions may lead to the development of a "cyanide" rash, characterized by itching, and by macular, papular, and vesicular eruptions, and may be accompanied by secondary infections.

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:
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
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. May react with acids or moisture to form explosive hydrogen gas.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Use agent most appropriate to extinguish 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. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Use with adequate ventilation. Minimize dust generation and accumulation. Avoid prolonged or repeated contact with skin. Avoid contact with eyes. Keep container tightly closed. Avoid ingestion and inhalation. Store protected from light.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. 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.
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 protective gloves and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR 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: Solid
Appearance: 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: Non-flammable
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: NaCNS
Molecular Weight: 81.0565

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Light, dust generation, exposure to air, acids, exposure to moist air or water.
Incompatibilities with Other Materials:
Moisture, acids, strong bases.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
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, rat: LD50 = 764 mg/kg.
Carcinogenicity:
Sodium Thiocyanate - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
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# 540-72-7: 1
United Kingdom Occupational Exposure Limits
CAS# 540-72-7: OES-United Kingdom, TWA (listed as ** undefined
**): as CN: 5 mg/m3 TWA; (does not include hydrogen cyanide,
cyanogen or cyanogen chl
Canada
CAS# 540-72-7 is listed on Canada's DSL List.
CAS# 540-72-7 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 540-72-7 (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# 540-72-7 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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