Sodium tungstate dihydrate

10213-10-2
Sodium tungstate dihydrate

产品介绍９�/div>

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 (SO?): �� 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)分子弎�/td>	Na2O4W �� 2H2O
分子野�/td>	329.85
MDL编号	MFCD00149190
EC索引叶�/td>	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�?酸碱�?	8-9 (20 �? 50 g/L in H2O)
mp	100 � (Elimination of water of crystallisation)
溶解�?/td>	730 g/L
密度	3.23 g/cm3at 20 ℂ�/td>
堆积密度	1600 kg/m3
痕量阴离孏�/td>	chloride (Cl-): ��0.01% sulfate (SO42-): ��0.02%
痕量阳离孏�/td>	Fe: �� 0.002% N: �� 0.005% excess alkali (as NaOH): ��0.1%
储存温度	15-25ℂ�/td>
InChI	1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI key	WPZFLQRLSGVIAA-UHFFFAOYSA-N

安全信息

象形国�/td>
警示用语９�/td>	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