2-Butynedioic acid monopotassium salt

Name	Acetylenedicarboxylic acid monopotassium salt
Synonyms	TIMTEC-BB SBB008993 Acetylenedicarboxyli PotassiuM but-2-ynedioate potassium but-2-ynedioate potassiuM 3-carboxypropiolate Potassium 3-carboxyprop-2-ynoate 2-Butynedioic acid monopotassium salt Acetylenedicarboxylic acid monopotassium salt Monopotassium AcetylenedicarboxylatePotassium Hydrogen Acetylenedicarboxylate
CAS	928-04-1
EINECS	213-169-2
InChI	InChI=1/C4H2O4.K/c5-3(6)1-2-4(7)8;/h(H,5,6)(H,7,8);/q;+1/p-2

Molecular Formula	C4HKO4
Molar Mass	152.15
Melting Point	133 °C
Water Solubility	slightly soluble (20 ºC)
Appearance	powder to crystal
Color	White to Almost white
BRN	3571639
Storage Condition	-20°C
Stability	Stable. Incompatible with bases, reducing agents, oxidizing agents.
MDL	MFCD00013143
Physical and Chemical Properties

Hazard Symbols	T+ - Very toxic
Risk Codes	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 Description	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 the label whenever possible.)
UN IDs	UN 2811 6.1/PG 1
WGK Germany	3
RTECS	AP0700000
HS Code	29171990
Hazard Class	6.1
Packing Group	I

EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
category	toxic substances
toxicity grade	high toxicity
Acute toxicity	oral-mouse LD50: 63 mg/kg; Intraperitoneal-mouse LD50:32 mg/kg
flammability hazard characteristics	flammability; Thermal decomposition releases toxic potassium oxide and irritating smoke
storage and transportation characteristics	warehouse ventilation and low temperature drying
extinguishing agent	dry powder, foam, sand, carbon dioxide, water mist

Last Update：2024-04-10 22:29:15

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