Natrium-p-decylbenzolsulfonat

Linear alkylbenzene sulfonate (LAS): compounds with a sulfonated aromatic ring and a linear alkyl chain usually containing 10 to 14 carbon atoms; Commercial product is mixture of more than twenty of these homologues and isomers; Causes moderate skin and eye irritation (increases with concentration); Moderately toxic by inhalation; Effects in high-dose animal studies include increase in relative liver weight and effect on kidney tubular epithelium; [eChemPortal: SIDSUNEP]

Lewis MA, Suprenant D; Comparative Acute Toxicities of Surfactants to Aquatic Invertebrates. Ecotoxicol Environ Saf 7 (3): 313-322 (1983)

Stora G; Comparative Evolution of the Sensitivity of Two Polychaetes to the Effects of Detergents as a Function of Temperature Increase, and Information on the Sensitivity Index. Rev Int Oceanog Med 51-52: 101-13 (1978)

Shibuya S; Japan Tokkyo Koho JP 53/137557 Purification of Oil-Emulsified Waste Water Using Sulfonic Surfactants (1978)

Arendt G et al; Forschungsber-Bundesminist Forsch Technol Technol Forsch Entwickl BMFT-FB-T 83-281 136 pp. (1983) A method is described which permits identification of groups of substances approximately 370 compounds present in the technosphere /including dodecylbenzenesulfonic acid/.

Freitag D et al; Chemosphere 14 (10): 1589-1616 (1985) Environmental hazard profile of organic chemicals using an experimental method for the assessment of the behavior of organic chemicals in the exosphere by means of simple laboratory tests with (14)C-labeled chemicals. Dodecylbenzenesulfonic acid is one of numerous compounds considered.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Linear alkylbenzene sulfonic acids rendered linolenic acid (a mutagen) penetrable in bacterial cells Salmonella typhimurium (Ames/Salmonella Assay). /Linear alkylbenzene sulfonic acids/

Synergism reported in the toxic action of parathion (800 ug/l) with the addition of 85% pure C12 linear alkylbenzene sulfonic acids 1,000 ug/l in Fathead minnow. /C12 linear alkylbenzene sulfonic acids/

LC50 Daphnia magna 29.55 ppm 48 hr

LC50 Clam (Mya arenaria) 70 mg/l 96 hr. /Linear alkylbenzene sulfonic acids/

LC50 Hermit crab (Eupagurus bernhardus) >100 mg/l 96 hr. /Linear alkylbenzene sulfonic acids/

LC50 Pimephales promelas 43.0 mg/l 48 hr

Aquatic: Under typical sewage plant conditions, biodegradation for linear alkylbenzene sulfonic acid products ranges from the mid 80% to upper 90% level. /Linear alkylbenzene sulfonic acids/

Aquatic: Water temperature affects biodegration. The rate of sodium-C12 linear alkylbenzene sulfonic acids biodegradation in Chesapeake Bay water was max at 25-30 °C and decreased at lower incubation temperatures. /Sodium-C12 linear alkylbenzene sulfonic acids/

Terrestrial: The adsorption of sodium-C12 linear alkylbenzene sulfonic acids is affected by the type of soil. The affinity of the soil for surfactants competes with microbial attack, slowing biodegradation. /Sodium-C12 linear alkylbenzene sulfonic acids/

Workers engaged in the packing of a washing powder were exposed to atmospheric levels of sodium-C12 linear alkylbenzene sulfonic acids at 8.64 mg/cu m. Neither carbohydrate nor lipid metabolism was significantly affected, except for reductions in total lipid content and cholesterol level of plasma./Sodium-C12 linear alkylbenzene sulfonic acids/

0.1 ml of 20% linear alkylbenzene sulfonic acids applied twice a day from day 0 to 3 of pregnancy, to a 2 x 3 cm area of the backs of mice, interrupted cleavage of eggs and caused retarded fetal development. Linear alkylbenzene sulfonic acids interrupts pregnancy by a direct effect on embryos. /Linear alkylbenzene sulfonic acids/

0.5 ml detergent solution containing 3% linear alkylbenzene sulfonic acids applied percutaneously to mice during pregnancy on days 2-13 caused postimplantation embryo loss due to maternal toxicity. /Linear alkylbenzene sulfonic acids/

General reproduction parameters from a three-generation study in rats following an 84-day administration of 0.5% C12 linear alkylbenzene sulfonate in the diet were similar in control and treated groups. /C12 linear alkylbenzene sulfonate/

No adverse effects in a two-generation study in rats administered 0.1% linear alkylbenzene sulfonic acids in their drinking water for 26 wks. /Linear alkylbenzene sulfonic acids/

For more Non-Human Toxicity Excerpts (Complete) data for SODIUM P-DECYLBENZENESULFONATE (8 total), please visit the HSDB record page.

The mean levels of linear alkylbenzene sulfonic acids (as methylene blue active substance) in surface waters in the US are generally below 0.5 mg/l, the max acceptable level for "drinking" water. The yearly fluctuation in mean methylene blue active substance levels is rather large and shows no trend. /Linear alkylbenzene sulfonic acids/

LD50 Mouse oral 2.1 g/kg 72 hr.

LD50 Mouse iv 115 mg/kg 24 hr.

Linear alkylbenzene sulfonates are absorbed through the gills and body surface of fish (eg, carp), distributed via blood to the various tissues and organs, transported to the hepatopancreas (liver for goldfish and others), and via bile, eliminated with the feces. /Linear alkylbenzene sulfonic acids/

In the whole body, hepatopancreas and gall bladder of fish, (35)S C12 linear alkylbenzene sulfonic acids concentration reached an equilibrium with the ambient water in 48 hr. /C12 linear alkylbenzene sulfonic acids/

Uptake of 0.2-0.6 mg/ml sodium-linear alkylbenzene sulfonic acids by skin surface increased with concentration and length of exposure. /Sodium-linear alkylbenzene sulfonic acids/

Used as anionic surfactant in synthetic detergents; [HSDB]

Anionic surfactants used in many synthetic detergents.

SURFACTANT IN HOUSEHOLD CLEANERS-ESP FOR LAUNDRY-AS MIXT; SURFACTANT IN INDUST CLEANERS-EG, FOR VEHICLES (AS MIXT); SURFACTANT IN INDUST PROCESSES-EG, PULP & PAPER (AS MIXT)

For linear alkylbenzene sulfonic acid compounds: 650 million pounds. /Linear alkylbenzene sulfonic acids/

(1977) AT LEAST 4.54X10+8 G

(1981) MORE THAN 4.54X10+6 G (ISOMERIC MIXT)

Sulfonation of alkylbenzene with sulfur trioxide may be accomplished in 30 min by pressing the vaporized sulfate mixed with dry air into the alkylate, and stirring and cooling the mixture. A 90% concn of the linear alkylbenzene sulfonic acids is obtained, the remaining 10% being mainly sodium sulfate. A 98% linear alkylbenzene sulfonic acids product can be obtained from any 90% linear alkylbenzene sulfonic acids products by extraction with an alcohol solution

REACTION OF P-DECYLBENZENE WITH OLEUM (OR SULFUR TRIOXIDE & AIR) FOLLOWED BY REACTION WITH SODIUM HYDROXIDE--COMMERCIAL FEEDSTOCK IS A MIXT OF DECYL- AND/OR OTHER LINEAR ALKYLBENZENES, WHICH PRODUCE SODIUM DECYLBENZENESULFONATE & SODIUM LINEAR ALKYLBENZENESULFONATE MIXTURES