基本信息
线性分子式 | Na2HPO4· 2H2O |
分子量 | 177.99 |
EC 号 | 231-448-7 |
MDL编号 | MFCD00149182 |
PubChem化学物质编号 | 329753513 |
NACRES | NA.21 |
半岛bd体育手机客户端 性质
质量水平 | 200 |
agency | USP/NF reag. Ph. Eur. |
等级 | puriss. p.a. |
测定 | 98.5-101.0% (calc. to the dried substance) |
形式 | crystals |
杂质 | reducing impurities, complies ≤0.0005% heavy metals (as Pb) ≤0.001% total nitrogen (N) ≤0.5% NaH2PO4(calc. to dried subst.) |
缺失 | 19.5-21.0% loss on drying, 130 ℃ |
pH值(酸碱度) | 9.0-9.2 (20 ℃, 5%) |
痕量阴离子 | chloride (Cl-): ≤10 mg/kg sulfate (SO42-): ≤50 mg/kg |
痕量阳离子 | As: ≤0.5 mg/kg Fe: ≤5 mg/kg K: ≤50 mg/kg |
适用性 | in accordance for appearance of solution |
SMILES string | O.O.[Na+].[Na+].OP([O-])([O-])=O |
InChI | 1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2 |
InChI key | KDQPSPMLNJTZAL-UHFFFAOYSA-L |
安全信息
储存分类代码 | 13 - Non Combustible Solids |
WGK | WGK 1 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich