Heptachlor |
Synonyms & Trade Names 1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindene |
CAS No. 76-44-8 |
RTECS No. PC0700000 |
DOT ID & Guide 2761 151 (organochlorine pesticide, solid) |
FormulaC10H5Cl7 |
Conversion |
IDLH Ca [35 mg/m3]
See: 76448 |
Exposure Limits NIOSH REL: Ca TWA 0.5 mg/m3 [skin] See Appendix A
OSHA PEL: TWA 0.5 mg/m3 [skin] |
Measurement Methods
NIOSH S287 (II-5);
OSHA PV2029
See: NMAM or OSHA Methods |
Physical Description White to light-tan crystals with a camphor-like odor. [insecticide] |
MW: 373.4 |
BP: 293°F (Decomposes) |
MLT: 203°F |
Sol: 0.0006% |
VP(77°F): 0.0003 mmHg |
IP: ? |
Sp.Gr: 1.66 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid, but may be dissolved in flammable liquids. |
Incompatibilities & Reactivities Iron, rust |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms In animals: tremor, convulsions; liver damage; [potential occupational carcinogen] |
Target Organs central nervous system,liver |
Cancer Site[in animals: 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 See ICSC CARD: 0743
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