Dimethylformocarbothialdine
Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione
C5H10N2S2
Molecular mass: 162.3
ICSC # 0786
CAS # 533-74-4
RTECS # XI2800000
UN # 2588
EC # 613-008-00-X
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible under specific conditions.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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•Inhalation
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety goggles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Do NOT wash away into sewer.
Sweep spilled substance into containers.
Carefully collect remainder,
then remove to safe place.
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Provision to contain effluent from fire extinguishing.
Separated from
acids,
food and feedstuffs.
Cool.
Dry.
Keep in a well-ventilated room.
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Do not transport with food and feedstuffs.
Xn symbol
N symbol
R: 22-36-50/53
S: 2-15-22-24-60-61
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
WHITE OR COLOURLESS CRYSTALS.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating above 102°C,
producing
toxic fumes
including
nitrogen oxides
and
sulfur oxides
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on contact with acidsproducing carbon disulfide;andon contact with wateror moistureproducing toxic gases
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Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on dispersion.
Effects of Short-Term Exposure:
The substance
irritates
the eyes.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
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Physical
Properties
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Melting point (decomposes): 104-105°C
Relative density (water = 1): 1.3
Solubility in water, g/100 ml at 20°C: 0.3
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Flash point: 93°C
Octanol/water partition coefficient as log Pow: 1.4
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Environmental
Data
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The substance is very toxic to aquatic organisms.
This substance may be hazardous to the environment; special attention should be given to plants.
Avoid release to the environment in circumstances different to normal use.
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N O T E S
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The technical grade is 98% pure; dazomet is moderately stable but is sensitive to temperature > 35°C and to moisture.
If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s).
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Transport Emergency Card: TEC (R)-61G41c
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ADDITIONAL INFORMATION
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ICSC: 0786
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DAZOMET
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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