钠
CAS号：13517-23-2
品名：亚磷酸氢二钠五水合物Sodiumphosphitedibasicpentahydrate
中文别名：亚磷酸氢二钠,五水;亚磷酸钠,五水合物;亚磷酸氢二钠;亚磷酸钠,五水;
英文别名：SODIUMPHOSPHITE-5-HYDRATE;
分子式：H11Na2O8P
分子量：216.036
精确质量：215.999
Psa：126.09
外观与性状：白色结晶固体
密度：
稳定性：Stable. Incompatible with strong oxidizing agents.
安全说明：S22
简介：DisodiumhydrogenphosphiteisthechemicalcompoundNa2HPO3whichiscommonlyencounteredasthepentahydrate.Itisasaltofphosphorousacid,HP(O)(OH)2andcontainstheanionHPO32−.Itscommonnamesuggeststhatitcontainsanacidichydrogenatom,asinsodiumhydrogencarbonate.However,thisismisleadingasthehydrogenatomisbondedtophosphorusratherthanoxygen.Itistoxicalongwithallphosphites.Phosphitescontainphosphorusinits+3oxidationstateandarethereforereducingagents.
