Detail of "2622-08-4"

CAS Number:
2622-08-4
Name:
Phosphorous acid,tris(2-methylphenyl) ester
Superlist Name:
Tri(o-tolyl) phosphite
Molecular Structure:
Formula:
C21H21 O3 P
Molecular Weight:
400.39
Synonyms:
Phosphorousacid, tri-o-tolyl ester (8CI); o-Tolyl phosphite ((C7H7O)3P) (7CI); o-Tolylphosphite (6CI); Tri-o-cresyl phosphite; Tri-o-tolyl phosphite;Tris(2-methylphenyl) phosphite; Tris(o-methylphenyl) phosphite;Tris(o-tolyloxy)phosphine
Density:
g/cm³
Boiling Point:
410.8°Cat760mmHg
Flash Point:
250.5°C
Safety:
Poison by subcutaneous route. When heated to decomposition it emits toxic fumes of PO_x. See also ESTERS. Details

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Condensation of poly(alkylene terephthalates): Condensation of poly(alkylene terephthalates). Horlbeck, Gernot; Heuer, Horst (Chemische Werke Huels A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3211899 A1 13 Oct 1983, 14 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08G063-76; C08G063-38; C08G063-26. APPLICATION: DE 82-3211899 31 Mar 1982. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Poly(alkylene terephthalates) having viscosity no. 350 mL/g are heated with 0.5-5% aryl phosphite at temps. 25-65° below the m.p. of the polyester in a stream of inert gas until the required mol. wt. 24968-12-5 and 2622-08-4 which are cas registry numbers of chemicals are mentioned. is achieved. Thus, heating poly(butylene terephthalate) (I) [24968-12-5] [viscosity no. (6:4 PhOH-C2H2Cl4, 25°) 92 mL/g, m.p. 225°] contg. 2% (PhO)3P [101-02-0] in 0.5 m3 N/h at 180° for 10 h gave I having viscosity no. 145, compared to 107 in the absence of (PhO)3P. .