928-04-1

Name Acetylenedicarboxylic acid monopotassium salt
CAS 928-04-1
EINECS(EC#) 213-169-2
Molecular Formula C4HKO4
MDL Number MFCD04687516
Molecular Weight 152.15
MOL File 928-04-1.mol
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Chemical Properties

Appearance white powder
Melting point  133 °C
storage temp.  -20°C
form  powder to crystal
color  White to Almost white
Stability: Stable. Incompatible with bases, reducing agents, oxidizing agents.
Water Solubility  slightly soluble (20 ºC)
BRN  3571639
InChI 1S/C4H2O4.K/c5-3(6)1-2-4(7)8;/h(H,5,6)(H,7,8);/q;+1/p-1
InChIKey KLLYWRUTRAFSJT-UHFFFAOYSA-M
SMILES [K+].OC(=O)C#CC([O-])=O
CAS DataBase Reference 928-04-1(CAS DataBase Reference)
EPA Substance Registry System 928-04-1(EPA Substance)

Safety Data

Hazard Codes  T+
Risk Statements 
R23/25:Toxic by inhalation and if swallowed .
R27:Very Toxic in contact with skin.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  UN 2811 6.1/PG 1
WGK Germany  3
RTECS  AP0700000
TSCA  TSCA listed
HazardClass  6.1
PackingGroup  I
HS Code  29171990
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 3 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

Hazard Information

Material Safety Data Sheet(MSDS)

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