Endosulfan sulfate

  • 6,7,8,9,10,10-Hexachloro-1,5,5a,6,9,9a-hexahydro-6,9-methano-2,4,3-benzodioxathiepin-3,3-dioxide
  • 6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a- hexahydro-3,3-dioxide
Formula
C9H6Cl6O4S
Structure
Uses
Srp: not commercially produced. Endosulfan is its precursor.

Registry Numbers and Inventories.
CAS
1031-07-8
RTECS
RB9150000
RTECS class
Other
Beilstein/Gmelin
3038811
EPA OPP
79404
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C9H6Cl6O4S
Formula mass
422.93
Melting point, °C
181
Boiling point, °C
481
Vapor pressure, mmHg
6E-9 (25 C)
Solubility in water
0.22 mg/L
Partition coefficient, pKow
3.66
Heat of vaporization
71.7 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.
Respirators
Wear a NIOSH-approved half face respirator equipped with a combination filter cartridge, i.e. organic vapor/acid gas/HEPA (specific for organic vapors, HCl, acid gas, SO2 and a high efficiency particulate filter).
Small spills/leaks
If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
No data.
Incompatibilities
Corrosive to iron Incompatible with strong oxidizing and reducing agents Incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.

Fire.
Flash Point,°C
244
Fire fighting
To extinguish a fire involving this chemical you may use a dry chemical, carbon dioxide, foam or halon extinguisher; a water spray may also be used.

Health.
Exposure effects
Respiratory depression, fever, apnea, and cyanosis may occur. Elevated body temperature and recurrent abnormally low blood pressure occurred in related poisoning. The nervous system is the primary target of acute toxicity. Syncope may be the earliest sign of endosulfan toxicity. Sensory disturbances, excitation with myoclonic jerking, convulsions, tremor, ataxia, agitation, nervousness, and amnesia may occur. Permanent damage may occur from acute exposure to endosulfan. Endosulfan has been fetotoxic and induced musculoskeletal defects in rats. Effects on testes and sperm were seen in rats.
   Ingestion
Nausea, vomiting, and diarrhea frequently occur following ingestion.
   Inhalation
Dyspnea along with apnea and cyanosis may occur. Irritation, reduced gas exchange, and chemical pneumonitis may also occur.
   Skin
Extensive contact results in dermal irritation. Endosulfan is rapidly absorbed through the skin.
   Eyes
Hypersalivation, frothing from the mouth and nose, and headache may occur.

First aid
 
   Ingestion
If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. MMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
USCG CHRIS Code
EDL