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Benzyl chloride

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Synonyms & Trade Names
Chloromethylbenzene, α-Chlorotoluene
CAS No.
100-44-7
RTECS No.
XS8925000
DOT ID & Guide
1738 156
Formula
C₆H₅CH₂Cl
Conversion
1 ppm = 5.18 mg/m3
IDLH
10 ppm
See: 100447
Exposure Limits
NIOSH REL
C 1 ppm (5 mg/m3) [15-minute]
OSHA PEL
TWA 1 ppm (5 mg/m3)
Measurement Methods
NIOSH 1003;
OSHA 7
See: NMAM or OSHA Methods
Physical Description
Colorless to slightly yellow liquid with a pungent, aromatic odor.
Molecular Weight
126.6
Boiling Point
354°F
Freezing Point
-38°F
Solubility
0.05%
Vapor Pressure
1 mmHg
Ionization Potential
?
Specific Gravity
1.10
Flash Point
153°F
Upper Explosive Limit
?
Lower Explosive Limit
1.1%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Oxidizers, acids, copper, aluminum, magnesium, iron, zinc, tin [Note: Can polymerize when in contact with all common metals except nickel & lead. Hydrolyzes in H2O to benzyl alcohol.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, nose; lassitude (weakness, exhaustion); irritability; headache; skin eruption; pulmonary edema
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
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/OSHA

Up to 10 ppm:
(APF = 10) Any chemical cartridge respirator with organic vapor and acid gas cartridge(s)*
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor and acid gas canister
(APF = 25) Any powered, air-purifying respirator with organic vapor and acid gas cartridge(s)*
(APF = 10) Any supplied-air respirator*
(APF = 50) Any self-contained breathing apparatus 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 and acid gas canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0016   MEDICAL TESTS: 0024
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health