Detail of "2028-63-9"

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CAS Number:
2028-63-9
Name:
3-Butyn-2-ol
Molecular Structure:
Formula:
C₄H₆O
Molecular Weight:
70.10
Synonyms:
(RS)-1-Butyn-3-ol;(?à)-3-Butyn-2-ol;(?à)-But-1-yn-3-ol;1-Butyn-3-ol;1-Methyl-2-propyn-1-ol;1-Methyl-2-propynyl alcohol;1-Methylpropargyl alcohol;2-Hydroxy-3-butyne;3-Hydroxy-1-butyne;3-Methyl-1-propyn-3-ol;DL-1-Butyn-3-ol;Methyl ethynyl carbinol;NSC 222370;a-Methylpropargyl alcohol;
EINECS:
217-978-1
Density:
0.919 g/cm³
Boiling Point:
104 °C at 760 mmHg
Flash Point:
25.6 °C
Appearance:
clear colorless to light yellow liquid
Hazard Symbols:
T, F
Risk Codes:
10-25-36/38-36/37/38-24/25
Safety:
26-45-36/37/39-16 Details
Transport Information:
UN 2929 6

The direct synthesis of divinyl chalcogenides and 1-(vinylchalcogeno)-1-buten-3-ols from chalcogens and acetylene: The direct synthesis of divinyl chalcogenides and 1-(vinylchalcogeno)-1-buten-3-ols from chalcogens and acetylene. Trofimov, B. A.; Amosova, S. V.; Gusarova, N. K.; Potapov, V. A.; Tatarinova, A. A. 2028-63-9 and 7782-49-2 which are cas registry numbers are also used here. (Inst. Org. Chem., Irkutsk 664033, USSR). Sulfur Lett., 1(5), 151-6 (English) 1983. CODEN: SULED2. ISSN: 0278-6117. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) S, Se, and Te reacted with HCYCH in KOH-Me2SO2, KOH-(Me2N)3P, and KOH-H2O-SnCl2 to give 54-94% (H2C:CH)2X (X = S, Se, Te) and byproducts (Z)-H2C:CHXCH:CHCHMeOH and [(Z)-HOCHMeCH:CH]2X. .

Prevention of soiling of silicone rubber sealants: Prevention of soiling of silicone rubber sealants. (Toshiba Silicone Co., Ltd.Several substances are used for example 107-19-7 and 2028-63-9 which are their cas registry numbers., Japan). Jpn. Kokai Tokkyo Koho JP 58167648 A2 3 Oct 1983 Showa, 8 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L083-06; E04B001-66. APPLICATION: JP 82-50323 29 Mar 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) The soiling resistance of silicone rubber sealants contg. aminosilanes 0.1-30, inorg. fillers 5-300, and alkynols 0.01-10 phr is improved by coating them with acrylic polymer emulsions. Thus, a mixt. of OH-terminated di-Me siloxane 60, rosin-treated colloidal CaCO3 40, bis(diethylaminooxy)dibutyltetramethylcyclotetrasiloxane-2-butyl-2,4,6,8 -tetramethyl-4,6,8-tris(diethylamino)cyclotetrasilane 3.5, and propargyl alc. n(I) [107-19-7] 0.25 part was appled to tile joints. After 3 days at room temp., the sealant was coated with Aron Coat ST (acrylic polymer emulsion coating compn.). Without I, the coating peeled from the sealant after ￡3 mo outdoor exposure. .