Sodium Thiosulfate Pentahydrate

半岛bd体育手机客户端 说明

联系

Replaces: SX0815-1; SX0815

分析说明

Assay (iodometric): 99.5 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water, 25 °C): 6.0 - 7.5
pH-value (10?%; water): 6.0 - 7.5
Chloride (Cl): ≤ 0.008 %
Sulfate and sulphite (as SO?): ≤ 0.1 %
Sulfide (S): passes test
Heavy metals (as Pb): ≤ 0.001 %
Total nitrogen (N): ≤ 0.002 %
Ca (Calcium): ≤ 0.002 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.001 %
Mg (Magnesium): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS, ISO, Reag. Ph Eur

法律信息

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

基本信息

经验(实验)分子式	Na2O3S2· 5H2O
分子量	248.18
MDL编号	MFCD00149186
EC索引号	231-867-5

半岛bd体育手机客户端 性质

质量水平	300
等级	ACS reagent
机构	reag. ISO reag. Ph. Eur.
测定	99.5-101.0% (iodometric)
形式	solid
效能	>5000 mg/kg LD50, oral (Rat)
pH值(酸碱度)	6.0-7.5 (20 ℃, 100 g/L in H2O)
mp	48 ℃
密度	1.74 g/cm3at 20 ℃
堆积密度	1000 kg/m3
痕量阴离子	chloride (Cl-): ≤0.008% sulfate, sulfite (as SO42-): ≤0.1% sulfide (S2-): passes test
痕量阳离子	Ca: ≤ 0.002% Cu: ≤ 0.0005% Fe: ≤ 0.0005% K: ≤ 0.001% Mg: ≤ 0.001% N: ≤ 0.002% Pb: ≤ 0.0005% heavy metals (as Pb): ≤ 0.001%
储存温度	2-30℃
InChI	1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2
InChI key	PODWXQQNRWNDGD-UHFFFAOYSA-L

安全信息

储存分类代码	11 - Combustible Solids
WGK	WGK 1
闪点(F)	Not applicable
闪点(C)	Not applicable