Appearance: White crystalline powder

Melting Point [℃] ：46-50

Purity(%)：≥ 99.0% (GC)/Area%

Color：≤50 Hazen

Ash(%)：≤0.1

Dry weight loss(%)：≤0.2

Transmittance(%)：425nm ≥ 98.0; 500nm ≥ 99.0