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Pentachlorophenol

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Synonyms & Trade Names
PCP, Penta, 2,3,4,5,6-Pentachlorophenol
CAS No.
87-86-5
RTECS No.
SM6300000
DOT ID & Guide
3155 154
Formula
C₆Cl₅OH
Conversion
IDLH
2.5 mg/m3
See: 87865
Exposure Limits
NIOSH REL
TWA 0.5 mg/m3 [skin]
OSHA PEL
TWA 0.5 mg/m3 [skin]
Measurement Methods
NIOSH 5512
See: NMAM or OSHA Methods
Physical Description
Colorless to white, crystalline solid with a benzene-like odor. [fungicide]
Molecular Weight
266.4
Boiling Point
588°F (Decomposes)
Melting Point
374°F
Solubility
0.001%
Vapor Pressure
(77°F): 0.0001 mmHg
Ionization Potential
NA
Specific Gravity
1.98
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
Strong oxidizers, acids, alkalis
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, nose, throat; sneezing, cough; lassitude (weakness, exhaustion), anorexia, weight loss; sweating; headache, dizziness; nausea, vomiting; dyspnea (breathing difficulty), chest pain; high fever; dermatitis
Target Organs
Eyes, skin, respiratory system, cardiovascular system, liver, kidneys, 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:Daily
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 2.5 mg/m3:
(APF = 10) Any air-purifying half-mask respirator with organic vapor cartridge(s) in combination with an N95, R95, or P95 filter. The following filters may also be used: N99, R99, P99, N100, R100, P100.
Click here for information on selection of N, R, or P filters.*
(APF = 25) Any powered, air-purifying respirator with an organic vapor cartridge in combination with a high-efficiency particulate filter.*
(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 canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0069   MEDICAL TESTS: 0178
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health