The environmental effects of Benzenesulfonyl chloride

Benzenesulfonyl chloride may be released to the environment as a result of its manufacture and use as a catalyst and as an intermediate in the production of phenol and other organic chemicals. If benzenesulfonyl chloride is released to soil, it will be expected to rapidly hydrolyze if the soil is moist, based upon the rapid hydrolysis observed in aqueous solution. 

Since Benzenesulfonyl chloride(CAS NO:98-09-9) rapidly hydrolyzes, adsorption to and volatilization from moist soil are not expected to be significant processes. Based upon an estimated vapor pressure of 0.068 mm Hg at 25 deg C, volatilization from dry near-surface soil or other surfaces may be significant processes. If released to water, it will be expected to rapidly hydrolyze with a half-life of 5.1 min at 21 deg C. 

Since Benzenesulfonyl chloride rapidly hydrolyzes, bioconcentration, volatilization, and adsorption to sediment and suspended solids are not expected to be significant processes. No data were located concerning biodegradation, but benzenesulfonyl chloride probably chemically hydrolyzes significantly faster than it biodegrades. 

Direct photolysis is not expected to be an important removal process in surface waters. If released to the atmosphere, it will be expected to exist almost entirely in the vapor phase based upon its estimated vapor pressure. It will be susceptible to photooxidation via vapor phase reaction with photochemically hydroxyl radicals. An atmospheric half-life of 7.9 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm has been estimated for this process based upon an estimated rate constant. 

Hydrolysis of benzenesulfonyl chloride(CAS NO:98-09-9) in moist air may be an important removal process based upon its rapid hydrolysis in aqueous solution. Direct photolysis is not expected to be an important removal process in the atmosphere. Exposure to benzenesulfonyl chloride will be primarily occupational via inhalation and possibly dermal contact.

Benzenesulfony chloride may be released to the environmet as a result of its manufacture and use as a catalyst and as an intermediate in the production of phenol and other organic chemicals. Benzenesulfonyl chloride has been used in the Friedel-Crafts sulfonylation of benzene.

The major hazards encountered in the use and handling of benzenesulfonyl chloride stems from its toxicologic properties. Toxic by all routes (ie, inhalation, ingestion, and dermal contact), exposure to this colorless, oily liquid may occur from its manufacture and use as a catalyst, an intermediate in the production of phenols,amides, insecticides, miticides, and acaricides, and as a reagent for Friedel-Crafts sulfonation. 

Effects from exposure may include contact burns to the skin and eyes, and liver damage. In activities and situations where over-exposure may occur, wear a positive pressure self-contained breathing apparatus, and chemical protective clothing which has been specifically recommended by the shipper or manufacturer. If contact should occur, immediately irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes, and wash exposed skin thoroughly with soap and water. Remove contaminated clothing and shoes at the site. While benzenesulfonyl chloride does not ignite easily, it may burn with the production of poisonous gases. 

Runoff from fire control water may cause pollution. For fires involving benzenesulfonyl chloride, extinguish with dry chemical, CO2, water spray, fog, or regular foam. Small spills of this substance may be taken up with sand or other noncombustible absorbent and placed into containers for later disposal. Large spills should first be diked far ahead of the spill. Benzenesulfonyl chloride is a potential candidate for liquid injection or rotary kilnforms of incineration.

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