Asulam manufacturers and suppliers

Asulam suppliers

Properties

Melting point:: 142-144°C (dec.)

Density: 1.4655 (rough estimate)

refractive index: 1.5690 (estimate)

storage temp.: 0-6°C

solubility: DMSO (Slightly), Methanol (Slightly)

pka: 4.82(at 25℃)

color: Pale Brown to Light Brown

Water Solubility: 5g/L(room temperature)

Merck: 13,862

BRN: 2697523

LogP: -0.270

Safety Information

Symbol(GHS): GHS07

Signal word: Warning

Hazard statements: H302

Precautionary statements: P273-P391-P501

Hazard Codes: Xn

Risk Statements: 22

WGK Germany: 3

RTECS: FD1190000

HS Code: 29350090

Toxicity: LD50 in rats, mice, dogs, rabbits (mg/kg): >5000, >5000, >5000, >2000 orally; in rats (mg/kg): >1200 dermally (Brockelsby)

Use

Soil. It is not persistent in soils since its half-life is approximately 6–14 days (Hartley and Kidd, 1987). The short persistence time is affected by soil temperature and moisture content. The half-life of asulam in a heavy clay soil having a moisture content of 34% and maintained at 20°C was 7 days (Smith and Walker, 1977). In soil, sulfanilamide was reported as a product of hydrolysis. In non-sterile soils, this compound further degraded to unidentifiable products (Smith, 1988) which may include substituted anilines (Bartha, 1971).Photolytic. The reported photolytic half-lives for asulam in water at pH 3 and 9 were 2.5 and 9 days, respectively (Humburg et al., 1989)Chemical/Physical. Forms water-soluble salts (Hartley and Kidd, 1987). When heated to 75°C, asulam decomposed to sulfanilic acid, carbamic acid and sulfanilamide. At 90°C, 4-nitro- and 4-nitrosobenzene sulfonic acids were released (Rajagopal et a

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