7757-83-7
Sodium sulfite
亚硫酸钠

产品介绍９�/div>

产品说明

分析说明

Assay (iodometric): 97.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: �� 0.005 %
Free acid: passes test
Titrable free base: �� 0.03 meq/g
Chloride (Cl): �� 0.02 %
Thiosulfate (S?O?): �� 0.1 %
Heavy metals (as Pb): �� 0.0005 %
As (Arsenic): �� 0.0001 %
Cu (Copper): �� 0.0005 %
Fe (Iron): �� 0.001 %
Pb (Lead): �� 0.0005 %
Se (Selenium): �� 0.0004 %
Zn (Zinc): �� 0.001 %

法律信息

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

基本信息

线性分子式	Na2SO3
分子野�/td>	126.04
MDL编号	MFCD00003503
EC索引叶�/td>	231-821-4

产品性质

质量水平	300
agency	reag. Ph. Eur.
测定	97.0-100.5% (iodometric)
形式	powder
效能	2610 mg/kg LD50, oral (Rat)
pH�?酸碱�?	8.8-10 (20 �? 50 g/L in H2O)
mp	>500 � (decomposition)
密度	2.63 g/cm3at 20 ℂ�/td>
堆积密度	1480 kg/m3
痕量阴离孏�/td>	chloride (Cl-): ��0.02% thiosulfate (S2O32-): ��0.1%
痕量阳离孏�/td>	As: �� 0.0001% Cu: �� 0.0005% Fe: �� 0.001% Pb: �� 0.0005% Se: �� 0.0004% Zn: �� 0.001% heavy metals (as Pb): �� 0.0005%
储存温度	2-30ℂ�/td>
SMILES string	[Na+].[Na+].[O-]S([O-])=O
InChI	1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
InChI key	GEHJYWRUCIMESM-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