Description: White or almost white crystalline powder
Identification: Litmus paper turns blue from red
Assay: 98.0~102.0%
pH: 8.0~10.0
Specific rotation: -65~-70°
Loss on drying: ≤ 0.5%
Chloride: ≤ 100ppm
Heavy metals: ≤ 10ppm
Iron content: ≤ 10ppm
Related substances: ≤ 1.0%
Residue on ignition: ≤ 0.1%