Detail of "131-52-2"

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CAS Number:
131-52-2
Name:
Phenol,2,3,4,5,6-pentachloro-, sodium salt (1:1)
Superlist Name:
Sodium pentachlorophenate
Molecular Structure:
Formula:
C₆Cl₅NaO
Molecular Weight:
288.30
Synonyms:
Sodiumpentachlorophenolate;Sodium pentachlorophenoxide;Witophen N;Phenol,pentachloro-, sodium deriv. (6CI);Phenol, pentachloro-, sodium salt (8CI,9CI);Dowicide G;GR 48-11PS;GR 48-32S;Mystox D;NAPCP;PCP sodium salt;PCP-Sodium;PKhFN;Pentachlorophenate sodium;Pentachlorophenol sodium salt;Pentachlorophenoxy sodium;Pentanot 25;Preventol PN;Santobrite;Sapco 25;Sodium PCP;Sodium pentachlorophenate;Sodium pentachlorophenol;
EINECS:
205-025-2
Melting Point:
>300°C
Boiling Point:
309.5 °C at 760 mmHg
Flash Point:
133.7 °C
Solubility:
Soluble in water
Hazard Symbols:
T+,N
Risk Codes:
24/25-26-36/37/38-40-50/53
Safety:
1/2-22-36/37-45-61-60-52-28 Details
Transport Information:
UN 2567

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Effect of crosslinks on the extraction of water-soluble substances included in a crosslinked cellulose ether: Effect of crosslinks on the extraction of water-soluble substances included in a crosslinked cellulose ether. Vasil'eva, G. G.; Petropavlovskii, G. A. (USSR). Zh. Prikl. Khim. (Leningrad), 57(1), 33-8 (Russian) 1984. CODEN: ZPKHAB. ISSN: 0044-4618. DOCUMENT TYPE: Journal CA Section: 43 (Cellulose, Lignin, Paper, and Other Wood Products) Section cross-reference(s): 65 The extn. of Na pentachlorophenoxide (I) [131-52-2] from crosslinked Me cellulose (II) [9004-67-5] films proceeded in 2 stages: a rapid stage and a slow stage. The diffusion coeff. (D) of I in the rapid stage was (0.45-5.71) ′ 10-10, and the D of I in the slow stage was (0.16-6.56) ′ 10-11. The extn. 9004-67-5 and 140-95-4 are also in the experiment. curves of I were similar to swelling curves, suggesting that both processes occurred at the mol. level independent of the segmental mobility of I macromols. in the network. The diffusive rate of I from crosslinked II depended on the type of crosslinks. Bis(N-methylolacrylamide)dioxyethylene [19103-01-6] formed flexible crosslinks, resulting in increased D. The extn. of I also increased significantly with increasing temp. The deactivation energy of diffusion of I at rapid and slow stages was 2.35 and 10.53 kcal/mol, resp. .

Pentachlorophenol: Pentachlorophenol.Some chemicals with cas registry numbers like 131-52-2 and 87-86-5 are also used. Nagay, Zbigniew; Bukala, Jozef; Zielinski, Antoni (Politechnika Szczecinska, Pol.). Pol. PL 120145 B1 15 Oct 1983, 2 pp. (Polish). (Poland). CODEN: POXXA7. CLASS: IC: C07C039-36. APPLICATION: PL 79-212833 15 Jan 1979. DOCUMENT TYPE: Patent CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) C6Cl5OH (I) prepn. by acidifying aq. C6Cl5ONa (II) with a mineral acid (esp. HCl) in the presence of C6H6 and/or its alkyl derivs. was improved by pptn. of I in the presence of 0.01-0.1 mol arom. hydrocarbon per mol II at pH 2-4. Thus, 15.4 wt. % aq. II contg. 0.073 mol xylene per mol II and 12 wt % aq. HCl were added over 1 h to a stirred reactor at 11.2 and 2.0 g/min., resp., maintaining pH 2. Aq. I suspension 792 g was removed over 1 h via an overflow tube and centrifuged, and the products washed with H2O and dried to give 92 g (95.6%) I of 98.9% purity. .