ICSC 1306 - METHOXYCHLOR

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METHOXYCHLOR	ICSC: 1306 (March 1999)
1,1-(2,2,2-Trichloroethylidene)bis(4-methoxybenzene) 1,1,1-Trichloro-2,2-bis(p-methoxyphenyl)ethane Dimethoxy-DDT

CAS #: 72-43-5

EC Number: 200-779-9

	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, alcohol-resistant foam, carbon dioxide.

PREVENT DISPERSION OF DUST! STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	See Ingestion.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes		Wear safety spectacles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Convulsions. Diarrhoea. Nausea. Vomiting.	Do not eat, drink, or smoke during work. Wash hands before eating.	Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give one or two glasses of water to drink. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.	According to UN GHS Criteria Transportation UN Classification
STORAGE
Separated from food and feedstuffs. Well closed. Keep in a well-ventilated room.
PACKAGING
Do not transport with food and feedstuffs.

METHOXYCHLOR

ICSC: 1306

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-LIGHT-YELLOW CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on heating and on burning. This produces toxic and corrosive gases including hydrogen chloride (see ICSC 0163). Reacts with oxidants. Attacks some plastics and rubber.	Formula: C₁₆H₁₅Cl₃O₂ Molecular mass: 345.7 Melting point: 89°C Density: 1.4 g/cm³ Solubility in water: none Vapour pressure: negligible Octanol/water partition coefficient as log Pow: 4.68/5.08

PHYSICAL & CHEMICAL INFORMATION

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

Physical dangers

Chemical dangers
Decomposes on heating and on burning. This produces toxic and corrosive gases including hydrogen chloride (see ICSC 0163). Reacts with oxidants. Attacks some plastics and rubber.

Formula: C₁₆H₁₅Cl₃O₂
Molecular mass: 345.7
Melting point: 89°C
Density: 1.4 g/cm³
Solubility in water: none
Vapour pressure: negligible
Octanol/water partition coefficient as log Pow: 4.68/5.08

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered. Effects of long-term or repeated exposure Animal tests show that this substance possibly causes toxic effects upon human reproduction.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.

Effects of long-term or repeated exposure
Animal tests show that this substance possibly causes toxic effects upon human reproduction.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 mg/m³, as TWA; A4 (not classifiable as a human carcinogen). MAK: (inhalable fraction): 1 mg/m³; peak limitation category: II(8); skin absorption (H); pregnancy risk group: B

ENVIRONMENT
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. 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
Ingestion in large amounts may cause effects on the liver, kidneys and central nervous system. Temperature of decomposition is unknown in the literature. Depending on the degree of exposure, periodic medical examination is suggested. 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. See ICSC 0034.

NOTES

Ingestion in large amounts may cause effects on the liver, kidneys and central nervous system.
Temperature of decomposition is unknown in the literature.
Depending on the degree of exposure, periodic medical examination is suggested.
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.
See ICSC 0034.

ADDITIONAL INFORMATION

EC Classification

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