产品说明
分析说明
Assay (complexometric): ≥ 99.5 %
Assay (complexometric; calculated on dried substance): 99.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
Acidity or alkalinity: passes test
pH-value (5 %; water; 25 °C): 5.0 - 8.0
Chloride (Cl): ≤ 0.0003 %
Total nitrogen (N): ≤ 0.002 %
Nitrate (NO₃): ≤ 0.002 %
Heavy metals (ACS): ≤ 0.0005 %
As (Arsenic): ≤ 0.0002 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.0001 %
Fe (Iron): ≤ 0.0001 %
K (Potassium): ≤ 0.001 %
Mn (Manganese): ≤ 0.0005 %
Na (Sodium): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.002 %
Pb (Lead): ≤ 0.0001 %
Sr (Strontium): ≤ 0.005 %
Loss on drying (400 °C): 48.0 - 52.0 %
Corresponds to ACS, Reag. Ph Eur
法律信息
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 线性分子式 | MgSO4 · 7H2O |
| 分子量 | 246.47 |
| MDL编号 | MFCD00149785 |
| EC索引号 | 231-298-2 |
产品性质
| 质量水平 | 300 |
| 等级 | ACS reagent |
| 机构 | reag. Ph. Eur. |
| 蒸汽密度 | <0.01 (vs air) |
| 蒸汽压 | <0.1 mmHg ( 20 ℃) |
| 测定 | ≥99.5% (complexometric) 99.0-100.5% dry basis (complexometric) |
| 形式 | solid |
| pH值(酸碱度) | 5.0-8.0 (25 ℃, 50 g/L in H2O) |
| 溶解性 | 710 g/L |
| 密度 | 1.68 g/cm3 at 20 ℃ |
| 堆积密度 | 900 kg/m3 |
| 痕量阴离子 | chloride (Cl-): ≤0.0003% nitrate (NO3-): ≤0.002% |
| 痕量阳离子 | As: ≤ 0.0002% Ca: ≤ 0.005% Cu: ≤ 0.0001% Fe: ≤ 0.0001% K: ≤ 0.001% Mn: ≤ 0.0005% N: ≤ 0.002% NH4+: ≤ 0.002% Na: ≤ 0.001% Pb: ≤ 0.0001% Sr: ≤ 0.005% heavy metals: ≤ 0.0005% |
| 储存温度 | 2-30℃ |
| SMILES string | O.O.O.O.O.O.O.[Mg++].[O-]S([O-])(=O)=O |
| InChI | 1S/Mg.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2 |
| InChI key | WRUGWIBCXHJTDG-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 |
