Features: Appearance: White sheet crystal Hydroxy content: ≥ 31.6% Free acid(based on acetic acid) : ≤0.05% Chroma (APHA): ≤ 30 Range of melting point: 123-130°C Water content:< 1.0% Packing NW: 25kg plastic bag(with plastic bag inside, brown paper middle) Storage Neopentylene glycol has comparatively high relative humidity. Avoid moisture and fire.