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Thiocarbohydrazide 2231-57-4 MSDS
Name: Thiocarbohydrazide 98% Material Safety Data Sheet
Synonym: Carbonothioic dihydrazide; TCH; Thiocarbazide; Thiocarbohydrazide
CAS: 2231-57-4
Section 1 - Chemical Product   MSDS Name:Thiocarbohydrazide 98% Material Safety Data Sheet
Synonym:Carbonothioic dihydrazide; TCH; Thiocarbazide; Thiocarbohydrazide

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
2231-57-4 Thiocarbazide 70 218-769-8
Hazard Symbols: T+
Risk Phrases: 1 21 26/28 5

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Explosive when dry. Harmful in contact with skin. Very toxic by inhalation and if swallowed. Heating may cause an explosion.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. Harmful if absorbed through the skin. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
Ingestion:
May be fatal if swallowed. May cause central nervous system effects.
Inhalation:
May be fatal if inhaled. Inhalation of dust may cause respiratory tract irritation.
Chronic:
No information found.

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, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
POISON material. If swallowed, get medical aid immediately. Only induce vomiting if directed to do so by medical personnel. Never give anything by mouth to an unconscious person.
Inhalation:
POISON material. If inhaled, get medical aid immediately. Remove victim to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen.
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. This material poses an explosion hazard when dry. May explode when heated.
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:
Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Remove all sources of ignition. Isolate area and deny entry. Wet area to prevent drying out. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. May form flammable dust-air mixtures. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Avoid mechanical shock and friction. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Do not breathe dust. Use only with adequate ventilation. Keep wet with water. Do not allow to evaporate to near dryness.
Storage:
Keep away from heat, sparks, and flame. Store in a cool place in the original container and protect from sunlight. Keep container closed when not in use. Store in a tightly closed container. Material can explode if dry. Keep wet with water.

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# 2231-57-4: CAS# 7732-18-5: 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 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: slight - sulfide odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 168-172 deg C (dec)
Autoignition Temperature: Not available.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 168-172 deg C
Solubility in water: Soluble.
Specific Gravity/Density:
Molecular Formula: CH6N4S
Molecular Weight: 106.15

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Unstable.
Conditions to Avoid:
High temperatures, mechanical shock, dust generation, Do not allow water to evaporate from product..
Incompatibilities with Other Materials:
Strong oxidizing agents, strong reducing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, hydrazine.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 2231-57-4: FF2975000 CAS# 7732-18-5: ZC0110000 LD50/LC50:
CAS# 2231-57-4: Draize test, rabbit, eye: 50 mg Mild; Inhalation, rat: LC50 = 50 mg/m3/4H; Oral, mouse: LD50 = 6 mg/kg; Oral, rat: LD50 = 21600 ug/kg; Skin, rat: LD50 = >500 mg/kg.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
Not available.
Carcinogenicity:
Thiocarbazide - Not listed by ACGIH, IARC, or NTP.
Water - 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: TOXIC SOLID, ORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2811
Packing Group: II
IMO
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing Group: II
RID/ADR
Shipping Name: TOXIC SOLID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2811
Packing group: II

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+
Risk Phrases:
R 1 Explosive when dry.
R 21 Harmful in contact with skin.
R 26/28 Very toxic by inhalation and if swallowed.
R 5 Heating may cause an explosion.
Safety Phrases:
S 1 Keep locked up.
S 28A After contact with skin, wash immediately with
plenty of water.
S 36/37 Wear suitable protective clothing and
gloves.
S 38 In case of insufficient ventilation, wear
suitable respiratory equipment.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 2231-57-4: No information available.
CAS# 7732-18-5: No information available.
Canada
CAS# 2231-57-4 is listed on Canada's DSL List.
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 2231-57-4 is not listed on Canada's Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 2231-57-4 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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