产品说明
分析说明
Assay (thermogravimetric): ≥ 98 %
Identity (x-ray diffraction): passes test
Free alkali (as NaOH): ≤ 0.1 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.02 %
Total nitrogen (N): ≤ 0.005 %
Fe (Iron): ≤ 0.002 %
法律信息
EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 经验(实验)分子式 | Na2O4W · 2H2O |
| 分子量 | 329.85 |
| MDL编号 | MFCD00149190 |
| EC索引号 | 236-743-4 |
产品性质
| 质量水平 | 200 |
| 测定 | ≥98% (thermogravimetric) |
| 形式 | crystals |
| 效能 | 1190 mg/kg LD50, oral (Rat) |
| pH值(酸碱度) | 8-9 (20 ℃, 50 g/L in H2O) |
| mp | 100 ℃ (Elimination of water of crystallisation) |
| 溶解性 | 730 g/L |
| 密度 | 3.23 g/cm3 at 20 ℃ |
| 堆积密度 | 1600 kg/m3 |
| 痕量阴离子 | chloride (Cl-): ≤0.01% sulfate (SO42-): ≤0.02% |
| 痕量阳离子 | Fe: ≤ 0.002% N: ≤ 0.005% excess alkali (as NaOH): ≤0.1% |
| 储存温度 | 15-25℃ |
| InChI | 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1; |
| InChI key | WPZFLQRLSGVIAA-UHFFFAOYSA-N |
安全信息
| 象形图 |  |
| 警示用语： | Warning |
| 危险声明 | H302 |
| 预防措施声明 | P264 - P270 - P301 + P312 - P501 |
| 危险分类 | Acute Tox. 4 Oral |
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
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