NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Endosulfan

CAS
115-29-7

C9H6Cl6O3S

RTECS
RB9275000
Synonyms & Trade Names

Benzoepin; Endosulphan; 6,7,8,9,10-Hexachloro-1,5,5a,6,9,9a-hexachloro-6,9-methano- 2,4,3-benzo-dioxathiepin-3-oxide; Thiodan®
DOT ID & Guide
2761 / 151

Exposure
Limits

NIOSH REL: TWA 0.1 mg/m3 [skin]
OSHA PEL: none
IDLH
N.D. See: IDLH INDEX
Conversion
Physical Description
Brown crystals with a slight, sulfur dioxide odor. [insecticide] [Note: Technical product is a tan, waxy, isomer mixture.]
MW: 406.9
BP: Decomposes
MLT: 223°F
Sol: 0.00001%
VP(77°F): 0.00001 mmHg
IP: ?

Sp.Gr: 1.74
Fl.P: NA
UEL: NA
LEL: NA

Noncombustible Solid, but may be dissolved in flammable liquids.
Incompatibilities & Reactivities

Alkalis, acids, water [Note: Corrosive to iron. Hydrolyzes slowly on contact with water or decomposes in presence of alkalis and acids to form sulfur dioxide.]
Measurement Methods
OSHA PV2023
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
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 flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations
Not available.
Important additional information about respirator selection
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
Irritation skin; nausea, confusion, agitation, flushing, dry mouth, tremor, convulsions, headache; in animals: kidney, liver injury; decreased testis weight
Target Organs
Skin, central nervous system, liver, kidneys, reproductive system
See also: INTRODUCTION   See ICSC CARD: 0742