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分析純北京硫代硫酸鈉

 
 
單價 5.50 / 千克對比
銷量 暫無
發(fā)貨 北京付款后3天內(nèi)
庫存 1000000千克起訂25千克
品牌 金匯太亞
型號 無機(jī)
規(guī)格 分析純
過期 長期有效
更新 2013-08-27 17:26
 

北京金匯太亞化學(xué)試劑有限公司

企業(yè)會員第15年
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  • 北京
  • 上次登錄 2013-08-27
  • 趙文沖 (先生)  
詳細(xì)說明

TIANJIN JINHUITAIYA CHEMICAL REAGENTS CO.,LTD
          天津金匯太亞化學(xué)試劑有限公司
Test Report of Product 檢驗報告 
 
 名: 硫代硫酸鈉Na2S2O3·5H2O         規(guī)格:        分析純      
Product  Sodium thiosulfate pentahydrate            Specification :        AR           
 
標(biāo)準(zhǔn)依據(jù):      GB/T 6371988               批號:       20100613      
Standard         GB/T 6371988                Batch No     20100613        
 
T e s t I t e m
標(biāo)準(zhǔn)
T e s t S t a n d a r d
結(jié)
T e s t r e s u l t
性狀
Characters
無色結(jié)晶
colorless crystalline
合格
Conform
含量
Assay
99.0%
99.0%
PH
Ph
6.0~7.5
6.8
澄清度實驗
(Appearance of solution)
應(yīng)符合規(guī)定
Comply with the standard
合格
Conform
水不溶物
(Insoluble matter) 
0.005%
0.003%
氯化物
(Chloride)
0.02%
0.01%
硫酸鹽和亞硫酸鹽
Sulphates and sulphite
0.05%
0.002%
硫化物
(Sulfur compounds) 
0.00025%
0.0002%
總氮量
Total nitrogen
0.005%
0.004%
(Magnesium) 
0.001%
0.0006%
 鈣
(Calcium)
0.003%
0.001%
(Iron)
0.0005%
0.0004%
重金屬
(Heavy metal)
0.0005%
0.0005%
結(jié)論(Conclusion):符合分析純之規(guī)定(The above product complies with AR)
 
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