acid CAS 128-13-2

Chinese Name:  acid

English Name:  acid

Density: 0.9985 (rough estimate)

Melting point: 203–204 °C (lit.)

Boiling point: 437.26 °C (rough estimate)

Specific optical rotation: 60° (c=2, EtOH)

Flash point: 9 °C

Water solubility: Practically insoluble

Vapor pressure: 0 mmHg at 25 °C

Solubility: Ethanol: 50 mg/mL, clear

Refractive index: 60.5° (c=2, EtOH)

Acidity constant (pKa): 5.04 ± 0.04 (H₂O, t = 25.0 ± 0.1, I = 0.00) (approximate)

Storage conditions: 2–8 °C

Appearance: Solid, powder

Color: White to almost white

Merck: 14, 9889

BRN: 3219888