ICSC 1142 - DISUL-SODIUM

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DISUL-SODIUM

ICSC: 1142
_{October 1995}

2-(2,4-Dichlorophenoxy)ethyl hydrogen sulphate sodium salt
Sesone
Sodium 2,4-dichlorophenoxyethylsulfate

CAS No: 136-78-7
RTECS No: KK4900000

C₈H₇Cl₂NaO₅S
Molecular mass: 309.1

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation	Cough. Sore throat.	Avoid inhalation of fine dust and mist. Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Redness. Pain.	Safety goggles 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 take to a doctor.
Ingestion	Burning sensation.	Do not eat, drink, or smoke during work. Wash hands before eating.	Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: P2 filter respirator for harmful particles.		Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
	Separated from food and feedstuffs.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS TO WHITE CRYSTALS.

Chemical dangers
The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride and sulfur oxides.

Occupational exposure limits
TLV: 10 mg/m³ as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004).

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 nuisance-causing concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.

Effects of short-term exposure
The substance is irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the kidneys and liver.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Melting point (decomposes): 245°C Relative density (water = 1): 1.70 Solubility in water, g/100 ml at 25°C: (good) Vapour pressure, Pa at 20°C: 133	This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.

NOTES

Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home.
Crag Herbicide 1, Crag Sesone, Herbon are trade names.
The substance is metabolized in the body into 2,4-D.
See ICSC0033.
Card has been partly updated in April 2005. See section Occupational Exposure Limits.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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