This product can be used for titration analysis, qualitative and quantitative analysis, etc. It should be stored in a cool, ventilated place, sealed, and used within its expiration date. To obtain the product's Certificate of Analysis (COA), please visit www.howeipharm.com to view and download it.
Standard : Q/HWC032-2020 广州和为医药科技有限公司化学品制造标准
Product No. : CD100406
Product Name : Sodium thiosulfate pentahydrate
Product Spec. : 分析纯 AR,≥99.0%
Packges : 100g 500g 1kg 25kg
分子式 : Na2S2O3 · 5H2O
分子量 : 248.18
EINECS 编号 : 231-867-5
MDL编号 : MFCD00149186
PubChem Substance ID : 24890338
CAS号 : 10102-17-7
颜色外观 Color Appearance : 无色透明的单斜晶体 Colorless transparent crystal
含量 Assay(Na2S2O3·5H2O) : ≥99.0%
pH 值 pH value(50g/L solution,25℃) : 6.0~7.5
澄清度试验 Clarity of solution : 合格 Pass
水中不溶物 Insoluble matter in water : ≤0.005%
氯化物 Chloride(Cl) : ≤0.02%
硫酸盐和亚硫酸盐 Sulfate and sulfite(as SO4) : ≤0.05%
硫化物 Sulfide(S) : ≤0.00025%
总氮 Total nitrogen(N) : ≤0.005%
镁 Magnesium(Mg) : ≤0.001%
钙 Calcium(Ca) : ≤0.003%
铁 Iron(Fe) : ≤0.0005%
重金属（以 Pb 计）Heavy metals(as Pb) : ≤0.0005%
熔点 Melting range, ℃ : 48.5 ℃
Shelf Life ： 730 Days
COA ： Have COA
Users who purchased this product also purchased
