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p-Dichlorobenzene

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Synonyms & Trade Names
p-DCB, 1,4-Dichlorobenzene, para-Dichlorobenzene, Dichlorocide
CAS No.
106-46-7
RTECS No.
CZ4550000
DOT ID & Guide
Formula
C₆H₄Cl₂
Conversion
1 ppm = 6.01 mg/m3
IDLH
Ca [150 ppm]
See: 106467
Exposure Limits
NIOSH REL
Ca See Appendix A
OSHA PEL
TWA 75 ppm (450 mg/m3) See Appendix G
Measurement Methods
NIOSH 1003;
OSHA 7
See: NMAM or OSHA Methods
Physical Description
Colorless or white crystalline solid with a mothball-like odor. [insecticide]
Molecular Weight
147.0
Boiling Point
345°F
Melting Point
128°F
Solubility
0.008%
Vapor Pressure
1.3 mmHg
Ionization Potential
8.98 eV
Specific Gravity
1.25
Flash Point
150°F
Upper Explosive Limit
?
Lower Explosive Limit
2.5%
Combustible Solid, but may take some effort to ignite.
Incompatibilities & Reactivities
Strong oxidizers (such as chlorine or permanganate)
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
Eye irritation, swelling periorbital (situated around the eye); profuse rhinitis; headache, anorexia, nausea, vomiting; weight loss, jaundice, cirrhosis; In Animals: liver, kidney injury; [potential occupational carcinogen]
Target Organs
Liver, respiratory system, eyes, kidneys, skin
Cancer Site
[in animals: liver & kidney cancer]
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH

At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(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

See also
INTRODUCTION   ICSC CARD: 0037   MEDICAL TESTS: 0073
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health