Detail of "14518-69-5"

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CAS Number:
14518-69-5
Name:
Phosphonium,tetrabutyl-, hydroxide (1:1)
Molecular Structure:
Formula:
C₁₆H₃₇OP
Molecular Weight:
276.44
Synonyms:
Phosphonium,tetrabutyl-, hydroxide (8CI,9CI);Tetrabutylphosphonium hydroxide (6CI,7CI);Tetra-n-butylphosphonium hydroxide;
EINECS:
238-528-0
Density:
0.989 g/mL at 25 °C
Hazard Symbols:
C
Risk Codes:
34
Safety:
26-36/37/39-45 Details
Transport Information:
UN 3267

Tetrabutylphosphonium hydroxide 40%water solution

600 Integral
600

Tel:+81-3-3279-5831

Address:Japan

Quarternary Phosphonium Salt used as Phase Transfer Catalyst

332 Integral
332

Tel:+86 (21) 2408-9317 86 (21) 2408 9100

Address:3966 Jin Du Road, Xin Zhuang Ind. Zone, Min Hang District, Shanghai 201108

Supplier:RSA Corporation [ United States]

600 Integral
600

Tel:(203) 790-8100

Address:36 Old Sherman Turnpike Danbury, Connecticut 06810

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20

Tel:+91-20-27121030

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Manufacture of epoxy group-containing organopolysiloxanes: Manufacture of epoxy group-containing organopolysiloxanes. Okamura, Yoshio; Terae, Nobuyuki; Okamoto, Tetsuo; Ohashi, Hiroshi (Shin-Etsu Chemical Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 03255130 A2 14 Nov 1991 Heisei, 10 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C08G077-14. ICS: C08G059-20. APPLICATION: JP 90-53165 5 Mar 1990. 11094-48-7 and 14518-69-5 are cas registry numbers. These chemicals are also mentioned in this article. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) R1mR2nSiO4-(m+n)/2 (R1 = epoxy-contg. monovalent org. group; R2 = C1-8 monovalent hydrocarbyl or C1-3 alkoxy group without epoxy group; n/m 33; 1.8 < m + n < 2.1) are manufd. by heating mixts. of epoxy-contg. organosiloxane mixts. with organosiloxanes without epoxy groups 100, S-free aprotic org. solvents 1-50, and basic equilibrating catalysts 0.001-1 part. Thus, octamethylcyclotetrasiloxane 659, epoxy-contg. siloxane I (obtained by reaction of allyl glycidyl ether and 1,2,3,4-tetramethylcyclotetrasiloxane) 17.4, and trimethylsilyl-terminated dimethylpolysiloxane (av. d.p. 100) 74.1 g were refluxed in DMF under dropwise addn. of 2.5 g Bu4POH at 110° for 5 h to give an epoxy-contg. organopolysiloxane II with volatile content 1.2%, viscosity 840 P, refractive index 1.4046, and epoxy equiv. 0.013 mol/100 g. .

Siloxane polymerization catalysts: Siloxane polymerization catalysts. Watanuki, Isao; Kotana, Nobuhiko; Sato, Makoto (Shin-Etsu Chemical Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 03223334 A2 2 Oct 1991 Heisei, 6 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C08G077-08. APPLICATION: JP 90-20296 30 Jan 1990. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 67 The title catalysts having good storage stability are prepd. by dehydration condensation of R4POH (R = alkyl, cycloalkyl, aryl, arylalkyl, alkylaryl) with cyclic siloxanes and/or siloxanes. Thus, reacting 551.8 g cyclic di-Me siloxanes with 139.2 g 41.1% aq. soln. at 35-45° and 10-25 mm Hg for 3 h gave a catalyst having good stability at -5° for 6 mo.Except for chemicals metioned above, 14518-69-5 is also used. .