International Chemical Safety Cards

1-HEXADECANETHIOL ICSC: 0025

1-HEXADECANETHIOL
Hexadecyl mercaptan
1-Mercaptohexadecane
Cetyl mercaptan
CH3(CH2)15SH
Molecular mass: 258.5
CAS # 2917-26-2
ICSC # 0025
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, AFFF, foam, carbon dioxide.
EXPLOSION


EXPOSURE


  • INHALATION
    		• Dizziness. Headache. Nausea. Sore throat. Unconsciousness. Weakness.
    		Ventilation, local exhaust, or breathing protection.
    		Fresh air, rest. Refer for medical attention.
  • SKIN
    		• Redness.
    		Protective gloves. Protective clothing.
    		Remove contaminated clothes. Rinse skin with plenty of water or shower.
  • EYES
    		• Redness.
    		Safety goggles or eye protection in combination with breathing protection.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION

    		• Do not eat, drink, or smoke during work.
    		Rinse mouth.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Carefully collect remainder.
    		Separated from strong oxidants, reducing agents, alkali metals, acids.

    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0025 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    1-HEXADECANETHIOL ICSC: 0025

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    PHYSICAL STATE; APPEARANCE:
     LIQUID OR SOLID IN VARIOUS FORMS , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     The substance decomposes on burning producing highly toxic gases including sulfur oxides. Reacts violently with strong oxidants, acids, reducing agents, alkali metals.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.
    MAK not established.
    OSHA PEL: none
    NIOSH REL: C 0.5 ppm (5.3 mg/m3) 15-minute
    NIOSH IDLH: No data


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation, through the skin, and by ingestion.

    INHALATION RISK:
     A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes, the skin, and the respiratory tract. The substance may cause effects on the central nervous system , resulting in respiratory failure.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     Repeated or prolonged contact with skin may cause dermatitis.
    PHYSICAL
    PROPERTIES
    Melting point: 18°C
    Relative density (water = 1): 0.84
    Solubility in water: none
    Vapour pressure, Pa at 20°C: 10
    Relative vapour density (air = 1): 8.9
    		 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
    Flash point: 135°C o.c.
    Auto-ignition temperature: see Notes°C
    Explosive limits, vol% in air: see Notes
    ENVIRONMENTAL
    DATA
    N O T E S
    Auto-ignition temperature is unknown in literature. Explosive limits are unknown in literature, although the substance is combustible and has a flash point 55°C.
    ADDITIONAL INFORMATION


    ICSC: 0025 1-HEXADECANETHIOL
    © IPCS, CEC, 1993
    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 IDLH values.