| 分子式 | |
| 其他事项 | 4.120095Ethylenediaminetetraacetic acid disodium salt dihydrate (Reag. Ph. Eur.) for analysis, ACSC10H14N2Na2O82 H2O M.=372.24CAS No. 6381-92-6Guarantee analysisAssay (Compl.) 99.0 ~ 101.0%Identity (IR) passes testpH of 5% solution 4.0 ~ 5.0 MAXIMUM LIMIT OF IMPURITIES Insoluble matter in H2O 0.005%Loss on drying at 150°C 8.7 ~ 11.4%Chloride (Cl) 0.005% Sulphate (SO4) 0.01%Nitrilotriacetic Acid [(CH2COOH)3N] 0.05%Heavy metals (as Pb) 0.001%As 0.0005% Cu 0.0001% Ni 0.0005%Ca 0.002% Fe 0.0005% Pb 0.0005% |
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