乙炔二羧酸

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.

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

MFCD00004362

205-536-0

HO₂CC≡CCO₂H

114.06

ca 182° dec.

131°(267°F)

Keep Cold.

Powder

Soluble in diethyl ether and water.

878357

III

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

6.1

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).

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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.

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.