• Octalene
  • 1,2,3,4,10,10-Hexachloro-1,4,4a,5,8,8a-hexahydro-exo-1,4-endo-5,8-dimethanonaphthalene
  • Aldrite
  • Seedrin
  • HHDN
Formula C12H8Cl6
Description Aldrin, cast solid is a brown to white solid.
Uses Formerly as insecticide.

Registry Numbers and Inventories.
CAS 309-00-2
EC (EINECS/ELINCS) 206-215-8
EC Index Number 602-048-00-3
EC Class Toxic; Carcinogenic Category 3; Dangerous for the Environment
RTECS IO2100000
RTECS class Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data
UN (DOT) 2761
Merck 12,227
Beilstein/Gmelin 2336652
Beilstein Reference 3-05-00-01385
EPA OPP 45101
Swiss Giftliste 1 G-1053
Austrailia AICS Listed
Japan ENCS (MITI) Listed

Formula C12H8Cl6
Formula mass 364.91
Melting point, C 104
Boiling point, C 385
Vapor pressure, mmHg 1E-6 (25 C)
Density 1.7 g/cm3 (20 C)
Solubility in water Insoluble
Partition coefficient, pKow 6.50
Heat of vaporization 60.9 kJ/mol

Hazards and Protection.
Storage Protect containers against physical damage. Store at in well ventilated, cool, dark place separated from ignition sources. Outdoor or detached storage preferred.
Handling All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection Wear appropriate protective gloves, clothing and goggles.
Respirators Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: Use natural deep water pockets, excavated lagoons, or sand bag barriers to trap material at bottom. If dissolved, in region of 10 ppm or greater concentration, apply activated carbon at ten times the spilled amount. Remove trapped material with suction hoses. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.
Stability Stable.
Incompatibilities May be sensitive to prolonged exposure to light Reacts with concentrated acids and phenols in the presence of oxidizing agents Corrosive to metals It
Decomposition When heated to decomposition it emits toxic fumes of hydrogen chloride.

Flash Point,C 186
Fire fighting Wear full protective clothing, including positive pressure breathing apparatus. Small fires: dry chemical, carbon dioxide, water spray, or foam. Large fires: water spray, fog, or foam. Move container from fire area if you can do so without risk. Fight fire from maximum distance. Dike fire control water for later disposal; do not scatter the material.Not Flammable. Extinguish by using water spray, dry chemical, foam, or carbon dioxide. Use water to keep fire-exposed containers cool. Use water spray to disperse the vapors.
Fire potential HIGHLY FLAMMABLE.
Hazards When heated to decomposition, it emits toxic fumes of chlorine containing compounds. Commercial solutions may contain flammable or combustible liquids. The dry powder will not burn. Container may explode in heat of fire. Avoid concentrated mineral acids, acid catalysts, acid oxidizing agents, phenols, or active metals.
Combustion products Fire may produce irritating, corrosive and/or toxic gases.
NFPA Health 2
  Flammability 0  
  Reactivity 0  

Exposure limit(s) TLV: 0.25 mg/m3 (as TWA), A3 (skin) (ACGIH 1997). OSHA PEL: TWA 0.25 mg/m3 skin NIOSH REL: Ca TWA 0.25 mg/m3 skin See Appendix A NIOSH IDLH: Potential occupational carcinogen 25 mg/m3
Carcinogin G-A3, CP65
Poison_Class 2
Exposure effects Respiratory depression can occur from exposure to aldrin. Fever and recurrent abnormally low blood pressure occurred in acute endrin poisoning. Sensory disturbances, excitation with myoclonic jerking, convulsions, tremor, ataxia, agitation, nervousness, and amnesia may occur. Permanent damage may occur from acute exposure. Aldrin has been fetotoxic and teratogenic in mice and hamsters. Mixed results have been obtained in rats, and it was not teratogenic in dogs. Higher doses have altered the estrus cycle and fertility in rats. Aldrin and dieldrin have been found in human breast milk.
   Ingestion Nausea, vomiting, and diarrhea may occur following ingestion.
   Inhalation Irritation, reduced gas exchange, and chemical pneumonitis may occur.
   Skin Extensive contact results in dermal irritation. Erythematobullous dermatitis has been reported from exposure to aldrin. Generally pure aldrin causes only minor erythema, but commercial formulations may contain more irritating components.
   Eyes Hypersalivation and headache may occur.

First aid
   Ingestion Seek medical assistance.
   Inhalation Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

UN number 2761
Response guide 151
Hazard class 6.1
Packing Group I; II; III  
Std. Transport # 4921829