试剂级磷酸氢二钠（GR/AR/CP）

White crystals, Na₂HPO₄·12H₂O, CAS 10039-32-4, to GB/T1263-2006, in GR, AR and CP grades. Its solution is alkaline and it effloresces in dry air; used as a buffer, in leptospira culture media and for blood potassium determination; 25 kg bags.