Detail of "12202-17-4"

CAS Number:
12202-17-4
Name:
Lead sulfate tribasic
Molecular Structure:
Formula:
PbSO₄^.3(PbO)
Molecular Weight:
972.8608
Deleted CAS:
33011-59-5|50816-00-7|65863-24-3
Synonyms:
Sinacalead TS 102E;BS 53;TL 5000 (salt);TL 400;TL 7000;Sinacalead TS 102;5011YNS;Baropan MC 292;Naftovin T 3;Tribasic lead sulfate;Tribasic Lead Sulphate;Tribase;5012NS;Austrostab MCS 20;Tribase XL;Stabinex Tc;
EINECS:
235-380-9
Appearance:
white or off-white powder

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Basic principles of thermal degradation and thermal stabilization of poly(vinyl chloride): Basic principles of thermal degradation and thermal stabilization of poly(vinyl chloride). Mathematical model of the action of PVC thermal stabilizers. Prochaska, Krzysztof; Wypych, Jerzy (Comput. Cent., Univ. Lodz, Lodz, Pol.). J. Appl. Polym. Sci., 21(8), 2113-24 (English) 1977. CODEN: JAPNAB. DOCUMENT TYPE: Journal CA Section: 36 (Plastics Manufacture and Processing) A math. model was developed for the thermal stabilization of PVC [9002-86-2] by metal stearates and tribasic lead sulfate [12202-17-4]. The model was confirmed by a computer program and exptl. data, and the rate consts. of the reaction of stabilizers with HCl and the effects of the reaction products on the kinetics of polymer degrdn. were calcd.

Vinyl polymer foams: Vinyl polymer foams. Nakano, Isamu; Ohdo, Tsuyoshi (Sekisui Chemical Co., Ltd., Japan). Japan. JP 51036298 B4 7 Oct 1976 Showa, 8 pp. (Japanese). (Japan). CODEN: JAXXAD. CLASS: IC: B29D027-00. APPLICATION: JP 65-53177 30 Aug 1965. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Fabrication and Uses) Heating a blend of Nikavinyl SG 1100 (PVC)(I) [9002-86-2] or ethylene-vinyl chloride copolymer [25037-78-9] contg. 0-20 parts of a plasticizer per 100 parts I, azodicarbonamide (II) [123-77-3], and a metal oxide or a basic metal salt at 180-230.degree. in a mold followed by opening the mold without cooling gave foams with increased expansion ratio. Thus, I 100, lead sulfate tribasic (III) [12202-17-4] 10, and II 5 parts were masticated 8 min at 155.degree.. A sheet (obtained from the resulting blend) was pressed in a mold at 200.degree. and 250 kg/cm2 for 8 min to give a uniform foam (mold was opened without cooling) with d. 0.065 g/cm3, gel fraction 90.1%, and pore diam. .ltoreq.100 .mu., whereas the expansion ratio for a foam was poor on heating a sheet obtained from a compn. contg. I 100, II 5, III 10, and dibutyl phthalate 10 parts at 200.degree. by a com. process.