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10476-95-6
???:
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???(??):
???????????;???????????;2-??-2-???-1,1-????????
???:
2-METHYL-2-PROPENE-1,1-DIOL DIACETATE
???(??):
NSC 46577;methacroleindiacetate;Methacrolein diacetate;2-methylallyl diacetate;Methallylidene diacetate;METHACROLEIN DIACETYLACETAL;2-methyl-2-propene-1,1-diol;2-methylallylidene diacetate;3,3-Diacetoxy-2-methylpropene;methylallylidenediacetate[qr]
CBNumber:
CB5733891
???:
C8H12O4
??? ??:
172.18
MOL ??:
10476-95-6.mol

?????? ????? ??

???
−15 °C(lit.)
?? ?
191 °C(lit.)
??
1.039 g/mL at 25 °C(lit.)
???
760 mm Hg ( 191 °C)
???
n20/D 1.424(lit.)
???
182 °F
??? ??
??
EPA
Methacrolein diacetate (10476-95-6)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? T+
?? ???? ?? 26/27/28
????? 23-26-27-36/37/39-45
????(UN No.) UN 2810 6.1/PG 1
WGK ?? 3
RTECS ?? UC9800000
F ?????? 9-21
?? ?? 6.1(a)
???? II
?? ?? ??? 10476-95-6(Hazardous Substances Data)
?? LD50 orl-rat: 440 mg/kg AIHAAP 30,470,69
???? ?? KE-24903
????(GHS): GHS hazard pictograms
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H310 ??? ???? ???? ?? ?? ?? - ?? ?? 1,2 ?? GHS hazard pictograms P262, P264, P270, P280, P302+P350,P310, P322, P361, P363, P405, P501
H330 ???? ???? ?? ?? ?? ?? ?? 1, 2 ?? GHS hazard pictograms P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
??????:
P260 ??·?·??·???·??·...·????? ???? ???.
P262 ?, ??, ??? ?? ??? ???.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P270 ? ??? ??? ??? ???, ???? ???? ???.
P271 ?? ?? ??? ? ?? ???? ?????.
P280 ????/???/???/?????? ?????.
P284 ?? ???? ?????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P302+P350 ??? ?? ??,???? ???? ??
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P310 ?? ????(??)? ??? ????. ???? ?? ????(??)? ??? ????.
P320 ??? (…) ??? ???.
P322 ?? ??(??? … ??)
P330 ?? ?????.
P361 ?? ??? ??? ?? ?? ?
P363 ?? ??? ??? ??? ?????.
P403+P233 ??? ??? ? ?? ?? ??? ???? ?????.
P405 ???? ?????.
P501 ...? ??? / ??? ?? ???.

?????? ????? C??? ??, ??, ??

??? ??

Liquid.Slightly soluble in water. Combustible.

??

Chemical intermediate, can provide controlled release of methacrolein in acid solution.

?? ??

A liquid. Density 1.04 g / cm3; highly toxic.

?? ???

2-METHYL-2-PROPENE-1,1-DIOL DIACETATE reacts exothermically with acids. Strong oxidizing acids may cause a reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated with basic solutions. Flammable hydrogen may be generated by mixing with alkali metals and hydrides. Reacts readily with mercaptans. Acidic conditions favor breakdown to methacrolein, which is subject to possibly vigorous polymerization.

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When heated to decomposition, 2-METHYL-2-PROPENE-1,1-DIOL DIACETATE emits acrid smoke and irritating fumes.

Safety Profile

Poison by inhalation, skin contactand intraperitoneal routes. Moderately toxic by ingestion. When heated to decomposition it emitsacrid smoke and irritating fumes.

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