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Kepone

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Synonyms & Trade Names
Chlordecone, Decachlorooctahydro-1,3,4-metheno-2H-cyclobuta(cd)-pentalen-2-one, Decachlorooctahydro-kepone-2-one, Decachlorotetrahydro-4,7-methanoindeneone
CAS No.
143-50-0
RTECS No.
PC8575000
DOT ID & Guide
Formula
C₁₀Cl₁₀O
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
Ca TWA 0.001 mg/m3 See Appendix A
OSHA PEL
none
Measurement Methods
NIOSH 5508
See: NMAM or OSHA Methods
Physical Description
Tan to white, crystalline, odorless solid. [insecticide]
Molecular Weight
490.6
Boiling Point
Sublimes
Melting Point
662°F (Sublimes)
Solubility
(212°F): 0.5%
Vapor Pressure
(77°F): 3 x 10-7 mmHg
Ionization Potential
?
Specific Gravity
?
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
Acids, acid fumes
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
headache, anxiety, tremor; liver, kidney damage; visual disturbance; ataxia, chest pain, skin erythema (skin redness); testicular atrophy, low sperm count; [potential occupational carcinogen]
Target Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneys, reproductive system
Cancer Site
[in animal: liver 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 immediately
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 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: 1432
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health