Specifications :

• Assay (alkalimetric) : ≥ 99.0 %
• Assay (alkalimetric, calculated on dried substance) : 98.5 – 101.0 %
• Identity : passes test
• Appearance of solution : passes test
• Insoluble matter : ≤ 0.01 %
• Acidity or alkalinity : passes test
• pH-value (5 %; water; 25 °C) : 5.2 – 8.0
• Chloride (Cl) : ≤ 0.001 %
• Phosphate (PO₄) : ≤ 0.001 %
• Total nitrogen (N) : ≤ 0.0005 %
• Heavy metals (ACS) : ≤ 0.0005 %