ICSC 0797 - PHOSALONE

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PHOSALONE	ICSC: 0797 (November 2010)
S-(6-chloro-2,3-dihydro-2-oxobenzoxazol-3-ylmethyl) O,O-diethyl phosphorodithioate Benzphos

CAS #: 2310-17-0

UN #: 2783

EC Number: 218-996-2

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Use water spray, powder.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Nausea. Muscle twitching. Sweating. Pupillary constriction, muscle cramp, excessive salivation. Vomiting. Diarrhoea. Laboured breathing. Convulsions. Cough. Blurred vision. Unconsciousness.	Avoid inhalation of dust and mist. Use local exhaust or breathing protection.	Refer immediately for medical attention.
Skin	Redness. Further see Inhalation.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention.
Eyes	Redness.	Wear face shield or eye protection in combination with breathing protection if powder.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	See Inhalation.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Refer immediately for medical attention.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER Toxic if swallowed or in contact with skin Harmful if inhaled May cause an allergic skin reaction Very toxic to aquatic life Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Separated from food and feedstuffs. Well closed. Keep in a well-ventilated room. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.
PACKAGING
Do not transport with food and feedstuffs. Severe marine pollutant.

PHOSALONE

ICSC: 0797

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS OR WHITE CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on heating. This produces toxic and corrosive fumes including hydrogen chloride, nitrogen oxides, phosphorus oxides and sulfur oxides.	Formula: C₁₂H₁₅ClNO₄PS₂ Molecular mass: 367.8 Melting point: 47.5-48°C Density: 1.4 g/cm³ Solubility in water, g/100ml at 25°C: 0.0003 (very poor) Vapour pressure at 25°C: negligible Octanol/water partition coefficient as log Pow: 4.3 Flash point: 100°C c.c.

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS OR WHITE CRYSTALS WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes including hydrogen chloride, nitrogen oxides, phosphorus oxides and sulfur oxides.

Formula: C₁₂H₁₅ClNO₄PS₂
Molecular mass: 367.8
Melting point: 47.5-48°C
Density: 1.4 g/cm³
Solubility in water, g/100ml at 25°C: 0.0003 (very poor)
Vapour pressure at 25°C: negligible
Octanol/water partition coefficient as log Pow: 4.3
Flash point: 100°C c.c.

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure Cholinesterase inhibition. The substance may cause effects on the nervous system. This may result in convulsions and respiratory depression. The effects may be delayed. Medical observation is indicated. Exposure could cause death. The substance is mildly irritating to the eyes and skin.	Inhalation risk A harmful concentration of airborne particles can be reached quickly. Effects of long-term or repeated exposure Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms. Repeated or prolonged contact may cause skin sensitization.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

Effects of short-term exposure
Cholinesterase inhibition. The substance may cause effects on the nervous system. This may result in convulsions and respiratory depression. The effects may be delayed. Medical observation is indicated. Exposure could cause death. The substance is mildly irritating to the eyes and skin.

Inhalation risk
A harmful concentration of airborne particles can be reached quickly.

Effects of long-term or repeated exposure
Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms. Repeated or prolonged contact may cause skin sensitization.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is very toxic 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. Bioaccumulation of this chemical may occur along the food chain.

NOTES
Carrier solvents used in commercial formulations may change physical and toxicological properties. Do NOT take working clothes home. Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s).

NOTES

Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home.
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s).

ADDITIONAL INFORMATION

EC Classification
Symbol: T, N; R: 21-25-50/53; S: (1/2)-36/37-45-60-61

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