2-(2,4-Dichlorophenoxy)ethyl hydrogen sulphate sodium salt
Sesone
Sodium 2,4-dichlorophenoxyethylsulfate
C8H7Cl2NaO5S
Molecular mass: 309.1
ICSC # 1142
CAS # 136-78-7
RTECS # KK4900000
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Sore throat.
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Avoid inhalation of fine dust and mist.
Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety goggles
or
eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Burning sensation.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Separated from
food and feedstuffs
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Do not transport with food and feedstuffs.
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Important Data
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Physical State; Appearance:
COLOURLESS
TO WHITE
CRYSTALS.
Physical Dangers:
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).
OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH IDLH: 500 mg/m3 See: 136787
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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
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point (decomposes): 245°C
Relative density (water = 1): 1.70
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Solubility in water, g/100 ml at 25°C: (good)
Vapour pressure, Pa at 20°C: 133
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Environmental
Data
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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.
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N O T E S
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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 sections Occupational Exposure Limits, EU classification, Emergency Response.
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ADDITIONAL INFORMATION
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ICSC: 1142
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DISUL-SODIUM
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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