ICSC 0516 - METRIBUZIN

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METRIBUZIN	ICSC: 0516 (March 1998)
4-Amino-6-tert-butyl-3-methylthio-as-triazin-5-one 4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one

CAS #: 21087-64-9

UN #: 3077

EC Number: 244-209-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible.	NO open flames.	Use water spray, powder.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation		Use ventilation (not if powder), local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves.	Rinse and then wash skin with water and soap.
Eyes		Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion		Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Rest.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 9; UN Pack Group: III
STORAGE
Store in an area without drain or sewer access.
PACKAGING

METRIBUZIN

ICSC: 0516

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on burning. This produces toxic fumes including nitrogen oxides and sulfur oxides.	Formula: C₈H₁₄N₄OS Molecular mass: 214.3 Melting point: 125°C Density: 1.28 g/cm³ Solubility in water, g/100ml at 0.12°C: Vapour pressure, Pa at 20°C: <1 Octanol/water partition coefficient as log Pow: 1.6

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE CRYSTALS WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on burning. This produces toxic fumes including nitrogen oxides and sulfur oxides.

Formula: C₈H₁₄N₄OS
Molecular mass: 214.3
Melting point: 125°C
Density: 1.28 g/cm³
Solubility in water, g/100ml at 0.12°C:
Vapour pressure, Pa at 20°C: <1
Octanol/water partition coefficient as log Pow: 1.6

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Effects of short-term exposure Exposure at high levels could cause depression of the central nervous system.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Effects of short-term exposure
Exposure at high levels could cause depression of the central nervous system.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 mg/m³, as TWA; A4 (not classifiable as a human carcinogen)

ENVIRONMENT
The substance is harmful to aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.

NOTES

ADDITIONAL INFORMATION

EC Classification
Symbol: Xn, N; R: 22-50/53; S: (2)-60-61

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