Hostapur SAS

These products are marketed under the trade name Hostapur. Hostapur SAS 60, a 60% active paste, is used at low levels ia some European Hquid hand-dishwashing products. 

TABLE 4 Specifications of Sulfoxidation-Derived Alkanesulfonates (Hostapur SAS 60)... 

FIG. 11 Titration plot of alkanesulfonates. Sample 60 wt % of Hostapur SAS 60, monosulfonates fraction contents ca. 140 mg/100 ml (10% MeOH) solution to be titrated 10 ml, 5 ml buffer pH 3 (Merck), 5 ml MeOH, diluted to 100 ml with water titrant 0.004 mol/l TEGOtrant A 100 (l,3-didecyl-2-methyl-imidazolium chloride, Metrohm 6.2317.000) titrator Titrino 716 DMS with automatic titrator 727 and propellant stirrer titration mode dynamic end point titration (DET), high-sense electrode Metrohm 6.0504.15Q, reference electrode Ag/AgCl Metrohm 6.0733.100, EP = end point. 

FIG. 14 Distribution of alkanemono- and disulfonates in a commercial product (Hostapur SAS 93) by fast atom bombardement-mass spectrometry (FAB-MS). Conditions glycerol/H20, KCI, 3-nitrobenzylalcohol. 

Information is given for the sulfoxidation-derived paraffin sulfonate Marlon PS and the secondary alkanesulfonate Hostapur SAS. 

FIG. 42 Biodegradability of sodium stearate -- (U-I4C), alkanesulfonate Hostapur SAS — (U-I4C), and LAS (ring-tagged U-l4C) determined in a Hach apparatus (BOD5) and represented as the evolution of I4C02 evolution with time. 

The effect on the eyes was more noticeable. A single application of the solution mentioned above produced moderate redness and short and minor swelling of conjunctiva. Radiotracer studies with Hostapur SAS [102] revealed that after oral (up to 50 mg/kg) and dermal application on rats, the product and its metabolites were very quickly excreted either in completely oxidized form as carbon dioxide or in the urine and feces. Residues in organs and tissues after 7 days were well below 1 ppm. 

Hoechst AG, Hostapur SAS the raw material with a sure future, 1987. 

Deionized Water Hostapur SAS-60 Potassium Hydroxide Tetrapotassiurn Pyrophosphate Mazon 9B... 

Preformed microemulsions containing co-solvents and co-surfactants have been used for laboratory experiments [94] and a field test [55] in Canada. The systems were developed for the extraction of a viscous oil containing up to 16% of chlorinated solvents from a site at Ville Mercier. The contaminant is a DNAPL with a density of 1.05 g/cm3 and thus exhibits only a small density difference compared to chlorinated solvents [94]. It could not be extracted effectively by the usual Winsor I systems containing n-butanol as a co-surfactant. The addition of solvents was necessary for effective solubilisation of the contaminant [94]. A preformed microemulsion containing D-limonene, toluene, n-butanol, Hostapur SAS (secondary alkane sulphonate sodium salt) and water was injected into a field test site at Thouin Sand Pit near Montreal. In previous column experiments, a composition of 13.16% D-limonene, 13.16% toluene, 9.21% n-butanol, 9.21% Hostapur SAS and 0.3% of sodium ortho-silicate in water was used as a preformed microemulsion for the extraction of DNAPL from Ville Mercier. 

Figure 7. Primary data for 0.50% Hostapur SAS foam in a 100-cm pack of 8-darcy beads. Conditions 6 bar, T = 21 °C, distilled water, and...

Figure 8. Repeatability of gas-blockage data for 0.50% Hostapur SAS foams in 100-cm packs of 8-darcy beads at 26 °C and no oiL...

Figure 19. Data for foams from 0.5% Hostapur SAS carbon number fractions in 100-cm 8-darcy bead packs at 21 °C with Pout 7 bar and no oiL Threshold pressures are indicated. (Reproduced with permission from reference 14. Copyright 1993.)...

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