应用
Acetylenedicarboxylic acid is employed in the preparation of dimethyl acetylenedicarboxylate and potassium hydrogenacetylenedicarboxylate. It is also used as a laboratory reagent. Further, it is used as a precursor in organic synthesis and also serves as a pharmaceutical intermediate.

备注
Air sensitive. Store in a cool place. Incompatible with bases, alkali, reducing agents and oxidizing agents.

基本信息

MDL
MFCD00004362

EINECS
205-536-0

分子式
HO₂CC≡CCO₂H

分子量
114.06

熔点
ca 182° dec.

闪点
131°(267°F)

灵敏度
Keep Cold.

形态
Powder

溶解性
Soluble in diethyl ether and water.

Beilstein
878357

GHS危害和防范说明

GHS符号

Hazard Statements
H300-H310-H330-H314-H318
Fatal if swallowed.Fatal in contact with skin.Fatal if inhaled.Causes severe skin burns and eye damage.Causes serious eye damage.

Precautionary Statements
P301+P310a-P303+P361+P353-P304+P340-P305+P351+P338-P320-P405-P501a
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Specific treatment is urgent (see label).Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.

安全信息

危险等级
6.1

包装组
III

危险类别
23/24/25-34
Toxic by inhalation, in contact with skin and if swallowed.Causes burns.

安全等级
26-27-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Take off immediately all contaminated clothing.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

TSCA
是