Sodium alkylbenzene sulfonate
Linear alkylbenzene sulfonic acid sodium salt
Linear alkylbenzene sodium sulfonate
LAS
C11•6H24•2C6H4SO3Na
Molecular mass: 342.4
ICSC # 1602
CAS # 68411-30-3
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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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•Inhalation
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Cough.
Sore throat.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
Pain.
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Protective gloves.
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Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
Burns.
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Safety goggles
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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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Diarrhoea.
Nausea.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: P2 filter respirator for harmful particles.
Do NOT let this chemical enter the environment.
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
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Store in an area without drain or sewer access.
Separated from
acids.
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Important Data
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Physical State; Appearance:
SOLID IN VARIOUS FORMS
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
toxic and corrosive fumes
including
sulfur oxides
.
Reacts
with
acids
producing
toxic and corrosive fumes
including
sulfur oxides
.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion.
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance
is irritating to
the skin
and
the respiratory tract
and
is corrosive to
the eyes.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 637°C
Melting point: 277°C
Relative density (water = 1): 1.06
Solubility in water, g/100 ml at 20°C: 25
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Vapour pressure, Pa at °C:
negligible
Octanol/water partition coefficient as log Pow: 3.32
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Environmental
Data
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The substance is toxic to aquatic organisms.
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N O T E S
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The substance is usually sold as a 50% concentrate. The linear alkyl chain has typically 10 to 13 carbon atoms, approximately in the following mole ratio (percentage of alkyl chain lenght relative to the total component) C10:C11:C12:C13=13:30:33:24. The formulations of linear alkylbenzene sulfonates available in US contain also 0-5% C14 component
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ADDITIONAL INFORMATION
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ICSC: 1602
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C10-13 ALKYLBENZENESULFONIC ACID, SODIUM SALT
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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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