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??????????????? ??? ???
?? ??:
928-04-1
???:
???????????????
???(??):
???????????????
???:
Acetylenedicarboxylic acid monopotassium salt
???(??):
u-4783;TIMTEC-BB SBB008993;Acetylenedicarboxyli;acetylenedicarboxylic;PotassiuM but-2-ynedioate;2',4,4'-TRICHLOROCHALCONE;MONOPOTASSIUM BUTYNEDIOATE;potassiuM 3-carboxypropiolate;mono-Potassium 2-butynedioate;potassium hydrogen butynedioate
CBNumber:
CB4168980
???:
C4HKO4
??? ??:
152.15
MOL ??:
928-04-1.mol
MSDS ??:
SDS

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

???
133 °C
?? ??
-20°C
??? ??
powder to crystal
??
???? ?? ??
???
?? ???(20°C)
BRN
3571639
???
????. ??, ???, ???? ???? ????.
CAS ??????
928-04-1(CAS DataBase Reference)
EPA
2-Butynedioic acid, monopotassium salt (928-04-1)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? T+
?? ???? ?? 23/25-27-36/37/38
????? 26-36/37/39-45
????(UN No.) UN 2811 6.1/PG 1
WGK ?? 3
RTECS ?? AP0700000
?? ?? 6.1
???? I
HS ?? 29171990
???? ?? KE-29126
????(GHS): GHS hazard pictograms
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H301 ??? ??? ?? ?? ?? - ?? ?? 3 ?? GHS hazard pictograms P264, P270, P301+P310, P321, P330,P405, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ?? GHS hazard pictograms
??????:
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
NFPA 704
0
4 0

??????????????? MSDS


2-Butynedioic acid monopotassium salt

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

??? ??

white powder

Purification Methods

It is very soluble in H2O, but can be crystallised from a small volume of H2O in small crystals. These are washed with EtOH and dried over H2SO4 at 125o. [Bandrowski Chem Ber 10 841 1877, Lossen Justus Liebigs Ann Chem 272 133 1893, Beilstein 2 H 801, 2 I 317, 2 II 670, 2 III 1991, 2 IV 2290.]

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