Bensulide

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Bensulide

中文通用名

地散磷

IUPAC

S-2-benzenesulfonamidoethyl O,O-di-isopropyl phosphorodithioate; O,O-di-isopropyl S-2-phenylsulfonylaminoethyl phosphorodithioate

CAS

O,O-bis(1-methylethyl) S-[2-[(phenylsulfonyl)amino]ethyl] phosphorodithioate

CAS No.

741-58-2

Molecular Formula

C₁₄H₂₄NO₄PS₃

Molecular Structure

General Product Information

Category

Herbicides > Organophosphorus herbicides

Activity

Herbicide

Physical & Safety Data

Physical Properties

Molecular weight:397.5; Physical form:Colourless solid; ( is an amber solid or supercooled liquid with a characteristic camphor-like odour). Density:1.25 (22 °C); Composition:Tech. grade is 92% pure. Melting point:34.4 °C; Flash point:>104 °C; Vapour pressure:<0.133 (20 °C); Henry constant:<2.11 ?/SYM> 10-3 Pa m3 mol-1 (); Partition coefficient(n-octanol and water):logP = 4.2; Solubility:In water 25 /l (25 °C). In kerosene 300 /l (20 °C). Miscible with acetone, ethanol, methyl isobutyl ketone, and xylene.; Stability:Relatively stable to acids and alkalis; 50 >200 d ( 5-9, 25 °C). Decomposes slowly in light. Tech. product decomposes at 155 °C; heating at 100 °C causes autocatalytic decomposition in 18-40 h.;

Toxicology

Oral:Acute oral 50 for male rats 360, female rats 270 /. Percutaneous:Acute percutaneous 50 for rats >2000 /kg. Mild skin and eye irritant (rabbits). Not a skin sensitiser (guinea pigs). Inhalation:50 (4 h) for rats >1.75 /l.

Environmental Profile

Ecotoxicology:
Bees:50 0.0016 /bee.Birds:Acute oral 50 for bobwhite quail 1386 /kg. 50 (5 d feed) for mallard ducks >5620 ; (21 d) for quail >1000 .Daphnia:50 (48 h) 0.58 .Fish:50 (96 h) for rainbow trout 1.1, goldfish 1-2, bluegill sunfish 1.4 /l.

Environmental fate:
Soil:In soil, slowly degraded by microbial action; soil 50 1-6 (21-27 °C).

Transport Information

Signal Word:CAUTION;
Hazard Class:III(Slightly hazardous)