Detail of "626-68-6"

CAS Number:
626-68-6
Name:
1,3-Dioxane, 2-methyl-
Molecular Structure:
Formula:
C₅H₁₀O₂
Molecular Weight:
102.13
Synonyms:
m-Dioxane,2-methyl- (6CI,7CI,8CI);2-Methyl-1,3-dioxacyclohexane;2-Methyl-1,3-dioxane;2-Methyl-m-dioxane;
Density:
0.941 g/cm³
Boiling Point:
108.1 °C at 760 mmHg
Flash Point:
19.5 °C

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Initiating and plasticizing properties of oxidates of 1,3-dioxacyclanes: Initiating and plasticizing properties of oxidates of 1,3-dioxacyclanes. Shaul'skii, Yu. M.; Leplyanin, G. V.; Kuramshin, E. M.; Gumerova, V. K.; Golodkova, L. N. (Inst. Khim., Ufa, USSR). Vysokomol. Soedin., Ser. A, 26(5), 962-6 (Russian) 1984. CODEN: VYSAAF. ISSN: 0507-5475. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Me methacrylate [80-62-6] can be polymd. to poly(Me methacrylate) (I) [9011-14-7] meeting or exceeding Soviet quality stds. by initiating polymn. with 4,4-dimethyl-1,3-dioxane [766-15-4], 4-phenyl-1,3-dioxane [772-00-9], 2-methyl-1,3-dioxane [626-68-6], or 2-methyl-1,3-dioxolane [497-26-7] contg. hydroperoxide groups introduced by air oxidn. at 323 K. The hydroperoxides decomp. to the dioxanes (or dioxolane), which act as plasticizers, lowering the m.p. and improving the impact strength of I.

Stabilization of olefin polymers: Stabilization of olefin polymers. Kato, Koichi; Murata, Saburo (Mitsubishi Petrochemical Co., Ltd., Japan). Ger. Offen. DE 2715498 20 Oct 1977, 41 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08L023-00. PRIORITY: JP 76-38464 6 Apr 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Polypropylene (I) [9003-07-0] was prepd. with a Ziegler catalyst and treated, without removal of catalyst residues, with AcOEt [141-78-6], isoamyl propionate [105-68-0], 1,4-dioxane (II) [123-91-1], 2-methyl-1,3-dioxane [626-68-6], (iso-PrO)3Al [555-31-7], and (EtO)3Al [555-75-9] at 200-70°, e.g., in an extruder, to minimize the discolorization caused by the catalyst residues. Thus, 300 g powd. I was mixed with various stabilizers and with 6 g II, extruded at 220-30°, and molded at 230° to prep. a colorless I. Without the II, the moldings were yellowish brown.