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| 1-Hexadecanethiol | CAS 2917-26-2 | ||
| CH3[CH2]15SH | RTECS | ||
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Synonyms & Trade Names Cetyl mercaptan, Hexadecanethiol-1, n-Hexadecanethiol, Hexadecyl mercaptan |
DOT ID & Guide 1228 131 (liquid) |
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Exposure Limits |
NIOSH REL: C 0.5 ppm (5.3 mg/m3) [15-minute] | ||
| OSHA PEL: none | |||
| IDLH N.D. | Conversion 1 ppm = 10.59 mg/m3 | ||
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Physical Description Colorless liquid or solid (below 64-68°F) with a strong odor. |
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MW: 258.5 |
BP: ? |
FRZ: 64-68°F |
Sol: Insoluble |
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VP: 0.1 mmHg |
IP: ? |
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Sp.Gr: 0.85 |
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Fl.P: 215°F |
UEL: ? |
LEL: ? |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200�F. | |||
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Incompatibilities & Reactivities Oxidizers, strong acids & bases, alkali metals, reducing agents |
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Measurement Methods None available |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH Up to 5 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)/(APF = 10) Any supplied-air respirator Up to 12.5 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s) Up to 25 ppm: (APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, respiratory system; headache, dizziness, lassitude (weakness, exhaustion), cyanosis, nausea, convulsions | |
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Target Organs
Eyes, skin, respiratory system, central nervous system, blood |
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| See also: INTRODUCTION |