CAS No.25321-41-9,Benzenesulfonic acid,dimethyl- Suppliers

Detail of "25321-41-9"

CAS Number:

25321-41-9

Name:

Superlist Name:

2,4-Xylenesulfonic acid

Molecular Structure:

Formula:

C₈H₁₀O₃S

Molecular Weight:

186.24

Synonyms:

Xylene-ar-sulfonicacid (8CI);Dimethylbenzenesulfonic acid;Taycatox 100;Taycatox 110;XSA 90;Xylenesulfonic acid;

EINECS:

246-839-8

Density:

1.286 g/cm³

Phenol-formaldehyde resol foams: Phenol-formaldehyde resol foams. Carlson, John D.; Kifer, Edward W.; Wojtyna, Vincent J.; Colton, James P. 104-15-4 and 9003-35-4 are also occured in this study. (Koppers Co., Inc. , USA). Belg. BE 897254 A1 3 Nov 1983, 101 pp. (French). (Belgium). CODEN: BEXXAL. ICI: C08; C08. APPLICATION: BE 21-146 8 Jul 1983. PRIORITY: US 82-396500 9 Jul 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Mech. and thermally stable, flame-resistant foam insulation is prepd. from phenolic resols by blowing with fluorocarbons in the presence of silicone surfactants and curing with acids. Thus, 1:2 PhOH-HCHO resol [9003-35-4] (mol. wt. 507) 76.6, 1:1 Freon 11-Freon 113 10, and silicone surfactant (L 7003) 3.4 parts were stirred rapidly with cooling to 10-13°. The foam was crosslinked with 10 parts p-MeC6H4SO3H [104-15-4]-Me2C6H3SO3H [25321-41-9] mixt. by stirring for 10-15 s. Molding at 66° gave thermal insulation with K factor 10092 and 8821 after 0 and 280 days. .

Phenolic foams: Phenolic foams. Carlson, John D.; Kifer, Edward W.; Wojtyna, Vincent J.; Colton, James P. (Koppers Co., Inc. , USA). Belg. BE 897256 A1 3 Nov 1983, 130 pp. (French). (Belgium). CODEN: BEXXAL. ICI: C08; C08. APPLICATION: BE 21-148 8 Jul 1983. PRIORITY: US 82-396706 9 Jul 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Closed-cell insulating foams with good compression resistance and mech. stability are prepd. from aq. resols contg. surfactants, blowing agents, and arenesulfonic acid hardeners. Thus, 1:2 PhOH-HCHO resin [9003-35-4] (mol. wt. 507) 76.6, 1:1 Freon 11-Freon 113 10, and silicone surfactant (L 7003) 3.4 parts were stirred rapidly with cooling to 10-13° and mixed with 10 patrs MeC6H4SO3H [104-15-4]-Me2C6H3SO3H [25321-41-9]. The foam was molded at 66° to an insulator with d. 52 kg/m3 and K factor 9195 and 8821 after 10 and 280 days.Except for chemicals metioned above, 9003-35-4 and 104-15-4 are also used. .

Detail of "25321-41-9"