Dihydrogenated tallow dimethyl ammonium chloride
1-Octadecanaminium, N,N-dimethyl-N-octadecyl chloride
Quarternary ammonium compound, bis(hydrogenated tallow alkyl) dimethyl chloride
ca• C36•4H76•8NCl
Molecular mass: ca. 567-573
ICSC # 1518
CAS # 61789-80-8
RTECS # UZ2997000
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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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Flammable.
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NO open flames, NO sparks, and NO smoking.
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Alcohol-resistant foam
carbon dioxide
powder
water spray
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Explosion
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Above 25°C explosive vapour/air mixtures may be formed.
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Above 25°C use a closed system, ventilation, and explosion-proof electrical equipment.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Ventilation.
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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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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 spectacles.
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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 in the throat and chest.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Give plenty of water to drink.
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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Collect the spilled substance into containers.
Do NOT let this chemical enter the environment.
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Fireproof.
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Important Data
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Physical State; Appearance:
COLOURLESS TO WHITE PASTE
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Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing
toxic and corrosive fumes
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Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
Inhalation Risk:
A harmful contamination of the air will will not or will only very slowly be reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is severely irritating to the eyes.
The substance
is irritating to
the skin
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Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point (decomposes): 135°C
Melting point: 30-45°C
Relative density (water = 1): 0.87
Solubility in water, g/100 ml at 25°C: 10
Vapour pressure, kPa at 50°C: 17
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Flash point: 25°C
Auto-ignition temperature: 385°C
Explosive limits, vol% in air: 2-13
Octanol/water partition coefficient as log Pow: 3.8
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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 recommendations on this Card do not apply to the powder form.
In addition
see ICSC 0554 Isopropanol.
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ADDITIONAL INFORMATION
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ICSC: 1518
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DHTDMAC (with 15% Isopropanol)
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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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