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DISUL-SODIUM
ICSC: 1142
Peer-Review Status: 12.04.2013 Validated
2-(2,4-Dichlorophenoxy)ethyl hydrogen sulphate sodium salt
Sesone
Sodium 2,4-dichlorophenoxyethylsulfate 
CAS #: 136-78-7 RTECS #: KK4900000
EC #: 016-025-00-5
EINECS #: 205-259-5
    Formula: 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      
Inhalation Cough. Sore throat.  Avoid inhalation of dust and mist. Use 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.  Wear 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 refer for medical attention. 
Ingestion Burning sensation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. 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. Do NOT wash away into sewer.   
EC Classification
R: 22-38-41; S: (2)-26; Symbol: Xn 
UN Classification
 
GHS Classification
Signal: Warning
Harmful if swallowed
Causes skin and eye irritation
May cause damage to liver and kidneys
May cause respiratory irritation 
excl mark;warncancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
  Separated from food and feedstuffs, acids and strong oxidants. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-WHITE CRYSTALS. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes including hydrogen chloride and sulfur oxides. Reacts with acids and strong oxidants. 

Occupational exposure limits
TLV: 10mg/m³ as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2012).
MAK (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 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, skin and respiratory tract. The substance at very high concentrations is irritating to the gastrointestinal tract. The substance may cause effects on the liver and kidneys. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 245°C
Relative density (water = 1): 1.70
Solubility in water, g/100ml at 25°C: 25 (good)
Vapour pressure, Pa at 20°C: 133
Octanol/water partition coefficient as log Pow: -0.7 (estimated) 
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
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home.
The substance is metabolized in the body into 2,4-D. See ICSC 0033. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations