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cyanamide
CAS No.: 420-04-2
Synonyms:
Formula: CH2N2
Exact Mass: 42.02180
Molecular Weight: 42.04000
PSA: 49.81000
LogP: 0.12648
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cyanamide 420-04-2 MSDS
Name: Cyanamide 50 wt.% solution in water stabilized with phosphoric acid Material Safety Data Sheet
Synonym: Carbodiimide; Hydrogen cyanamide; Cyanamide; Carbimide; Amidocyanogen
CAS: 420-04-2
Section 1 - Chemical Product   MSDS Name:Cyanamide 50 wt.% solution in water stabilized with phosphoric acid Material Safety Data Sheet
Synonym:Carbodiimide; Hydrogen cyanamide; Cyanamide; Carbimide; Amidocyanogen

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
420-04-2 Cyanamide 50 206-992-3
Hazard Symbols: T
Risk Phrases: 21 25 36/38 43

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Harmful in contact with skin. Toxic if swallowed. Irritating to eyes and skin. May cause sensitization by skin contact.Heat sensitive.
Potential Health Effects
Eye:
Causes severe eye irritation.
Skin:
Causes severe skin irritation. Harmful if absorbed through the skin.
May cause an allergic reaction in certain individuals.
Ingestion:
Harmful if swallowed. Causes digestive tract irritation.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation. May cause effects similar to those described for ingestion.
Chronic:
No information found.

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 immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
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 immediately.
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:
Treat symptomatically and supportively.
Antidote: None reported.

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 polymerize explosively when involved in a fire. May react with metals and lead to the formation of flammable hydrogen gas.
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:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed.
Avoid ingestion and inhalation.
Storage:
Keep container closed to prevent drying out. Keep refrigerated.
(Store below 4C/39F.) Keep containers tightly closed. Material can explode if dry.

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 general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 420-04-2: United Kingdom, WEL - TWA: 2 mg/m3 TWA United Kingdom, WEL - STEL: 6 mg/m3 STEL Belgium - TWA: 2 mg/m3 VLE France - VME: 2 mg/m3 VME Germany: 0.58 ppm TWA (inhalable fraction); 1 mg/m3 TWA (inhalabl fraction) Germany: Skin absorber Malaysia: 2 mg/m3 TWA Netherlands: 2 mg/m3 MAC Russia: 0.5 mg/m3 TWA Spain: 2 mg/m3 VLA-ED CAS# 7664-38-2: United Kingdom, WEL - TWA: 1 mg/m3 TWA United Kingdom, WEL - STEL: 2 mg/m3 STEL United States OSHA: 1 mg/m3 TWA Belgium - TWA: 1 mg/m3 VLE Belgium - STEL: 2 mg/m3 VLE France - VME: 1 mg/m3 VME France - VLE: 3 mg/m3 VLE Germany: 1 mg/m3 TWA Japan: 1 mg/m3 OEL Malaysia: 1 mg/m3 TWA Netherlands: 0.5 ppm STEL; 2 mg/m3 STEL Netherlands: 0.2 ppm MAC; 1 mg/m3 MAC Spain: 1 mg/m3 VLA-ED Spain: 2 mg/m3 VLA-EC CAS# 7732-18-5: Personal Protective Equipment Eyes: Wear chemical splash goggles.
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: Liquid
Color: clear slightly yellow
Odor: None reported.
pH: Not available.
Vapor Pressure: .0038 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 83 deg C
Freezing/Melting Point: 45 - 46 deg C
Autoignition Temperature: Not available.
Flash Point: 142 deg C ( 287.60 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Soluble.
Specific Gravity/Density: 1.0700g/cm3
Molecular Formula: CH2N2
Molecular Weight: 42.04

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Explosive polymerization may occur on evaporation of aqueous solution to dryness. Formation of dicyandiamide (polymerization product) begins at 122C.
Conditions to Avoid:
Excess heat, Do not allow water to evaporate from product..
Incompatibilities with Other Materials:
Strong oxidizing agents - strong reducing agents - acids - bases.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide.
Hazardous Polymerization: May occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 420-04-2: GS5950000 CAS# 7664-38-2: TB6300000 CAS# 7732-18-5: ZC0110000 LD50/LC50:
CAS# 420-04-2: Oral, mouse: LD50 = 388 mg/kg; Oral, rabbit: LD50 = 150 mg/kg; Oral, rat: LD50 = 125 mg/kg; Skin, rabbit: LD50 = 590 mg/kg; Skin, rat: LD50 = 84 mg/kg.
CAS# 7664-38-2: Draize test, rabbit, eye: 119 mg Severe; Draize test, rabbit, skin: 595 mg/24H Severe; Inhalation, mouse: LC50 = 25.5 mg/m3; Inhalation, rat: LC50 = >850 mg/m3/1H; Inhalation, rat: LC50 = 25.5 mg/m3; Oral, mouse: LD50 = 1.25 gm/kg; Oral, rat: LD50 = 1530 mg/kg; Oral, rat: LD50 = 1.25 gm/kg; Skin, rabbit: LD50 = 2740 mg/kg.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
Carcinogenicity:
Cyanamide - Not listed by ACGIH, IARC, or NTP.
Phosphoric acid - 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
  Ecotoxicity:
Bioconcentration in acquatic organisms is expected to be low.

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.*
Hazard Class: 6.1
UN Number: 2810
Packing Group: III
IMO
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing Group: III
RID/ADR
Shipping Name: TOXIC LIQUID, ORGANIC, N.O.S.
Hazard Class: 6.1
UN Number: 2810
Packing group: III
USA RQ: CAS# 7664-38-2: 5000 lb final RQ; 2270 kg final RQ

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 21 Harmful in contact with skin.
R 25 Toxic if swallowed.
R 36/38 Irritating to eyes and skin.
R 43 May cause sensitization by skin contact.
Safety Phrases:
S 3 Keep in a cool place.
S 36/37 Wear suitable protective clothing and
gloves.
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# 420-04-2: 2
CAS# 7664-38-2: 1
CAS# 7732-18-5: No information available.
Canada
CAS# 420-04-2 is listed on Canada's DSL List.
CAS# 7664-38-2 is listed on Canada's DSL List.
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 420-04-2 is listed on Canada's Ingredient Disclosure List.
CAS# 7664-38-2 is listed on Canada's Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 420-04-2 is listed on the TSCA inventory.
CAS# 7664-38-2 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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