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Molecular formula : HOOCCH (C2H5) COOH CAS :
nature : columnar crystal (with a molecular crystal water from the water of crystallization). The anhydrous crystalline melting point of 111.5 ° C. PK1 (25 ° C) 1.27 × 10-3, pK2 (25 ° C) 0.54 × 10-6. Soluble ethanol, ethyl ether. A small grass with ethyl ethyl condensation system for admission. For organic synthesis intermediates. Its Derivatives : Ethyl 2, the boiling point of 207 ~ 209% (100.681kPa), 92 ° C (2.399kPa), the relative density of 1.008. Two amide (from water or ethanol recrystallization) melting point of 216 ° C. Hydrazide, needle-like crystal, and the melting point of 168 ° C. Two nitrile C3H6 (CN) 2, the boiling point of 206%, density d110.9513g/cm3.
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