Benzenethiol
|
CAS
108-98-5
|
C6H5SH
|
RTECS
DC0525000
|
Synonyms & Trade Names
Mercaptobenzene, Phenyl mercaptan, Thiophenol
|
DOT ID & Guide
2337 / 131
|
Exposure
Limits
|
NIOSH REL: C 0.1 ppm (0.5 mg/m3) [15-minute]
|
|
OSHA PEL†: none
|
IDLH
N.D.
See: IDLH INDEX
|
Conversion
1 ppm = 4.51 mg/m3
|
Physical Description
Water-white liquid with an offensive, garlic-like odor. [Note: A solid below 5°F.]
|
MW: 110.2
|
BP: 336°F
|
FRZ: 5°F
|
Sol(77°F): 0.08%
|
VP(65°F): 1 mmHg
|
IP: 8.33 eV
|
|
Sp.Gr: 1.08
|
Fl.P: 132°F
|
UEL: ?
|
LEL: ?
|
|
|
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
|
Incompatibilities & Reactivities
Strong acids & bases, calcium hypochlorite, alkali metals [Note: Oxidizes on exposure to air.]
|
Measurement Methods
OSHA PV2075
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench
|
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
|
Respirator Recommendations
NIOSH
Up to 1 ppm:
(APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)
(APF = 10) Any supplied-air respirator
Up to 2.5 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 5 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
Important additional information about respirator selection
|
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
|
Symptoms
Irritation eyes, skin, respiratory system; dermatitis; cyanosis; cough, wheezing, dyspnea (breathing difficulty), pulmonary edema, pneumonitis; headache, dizziness, central nervous system depression; nausea, vomiting; kidney, liver, spleen damage
|
Target Organs
Eyes, skin, respiratory system, central nervous system, kidneys, liver, spleen
|
|
See also: INTRODUCTION
See ICSC CARD: 0463 |
