ICSC 0786 - DAZOMET

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

DAZOMET

ICSC: 0786
_{October 1999}

Dimethylformocarbothialdine
Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione

CAS No: 533-74-4
RTECS No: XI2800000
UN No: 2588
EC No: 613-008-00-X

C₅H₁₀N₂S₂
Molecular mass: 162.3

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Powder, water spray, foam, carbon dioxide.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!
Inhalation		Local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Redness. Pain.	Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place.	Xn Symbol N Symbol R: 22-36-50/53 S: (2-)15-22-24-60-61 UN Hazard Class: 6.1 UN Pack Group: III	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	STORAGE
Transport Emergency Card: TEC (R)-61G41c	Provision to contain effluent from fire extinguishing. Separated from acids, food and feedstuffs. Cool. Dry. Keep in a well-ventilated room.

IMPORTANT DATA

Physical State; Appearance
WHITE OR COLOURLESS CRYSTALS.

Chemical dangers
The substance decomposes on heating above 102°C, producing toxic fumes including nitrogen oxides and sulfur oxides; on contact with acids producing carbon disulfide; and on contact with water or moisture producing toxic gases.

Occupational exposure limits
TLV not established.

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.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Melting point (decomposes): 104-105°C Relative density (water = 1): 1.3 Solubility in water, g/100 ml at 20°C: 0.3 Flash point: 93°C Octanol/water partition coefficient as log Pow: 1.4	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.

NOTES

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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2000

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Updated by AS. Approved by EC. Last update: 10.10.2000