品名 | 規(guī)格 | 包裝 | 單價(jià) | 貨期 |
硫代硫酸鈉 | USP, EP, BP, JP | 500g | 459.8元 | 咨詢客服 |
硫代硫酸鈉 | GCS | 5g | 73.7元 | 咨詢客服 |
硫代硫酸鈉 | 99.99% | 100g | 1240.8元 | 咨詢客服 |
硫代硫酸鈉 | 99.99% | 25g | 418元 | 咨詢客服 |
硫代硫酸鈉 | ACS | 500g | 49.5元 | 咨詢客服 |
硫代硫酸鈉 | PT | 100g | 93.5元 | 咨詢客服 |
硫代硫酸鈉 | GR | 500g | 50.6元 | 咨詢客服 |
硫代硫酸鈉 | AR | 500g | 38.5元 | 咨詢客服 |
ACS級(jí)
項(xiàng)目名稱 ACS Grade
含量(Na2S2O3·5H2O)Assay 99.5-101.0%
pH(5%溶液,25.0℃)..pH of a 5% solution at 25.0℃ 6.0-8.4
水不溶物Insoluble matter ≤0.005%
氮化合物(以N計(jì))Nitrogen compounds ≤0.002%
硫化物(以S計(jì))Sulfide(S) Passes test
99.99%:
外觀Appearance 白色粉末
純度Purity ≥99.99% Based On Trace Metals Analysis
S2O3 69.8% - 72.0%(碘量滴定)
ICP Assay Confirms Sodium component
痕量金屬雜質(zhì)Trace Metal Analysis 100ppm by ICP Atomic emission
USP, EP, BP, JP 級(jí)
ASSAY (ANHYDROUS BASIS) 99.0 - 100.5%
WATER 32.0 - 37.0%
pH OF A 10% SOLUTION 6.0 - 8.0
CALCIUM (Ca) TO PASS TEST
HEAVY METALS (as Pb) -- 10 PPM
SULFATE AND SULFITE (as SO4) -- 0.2%
SULFIDE (S) TO PASS TEST
COLOR AND CLARITY TO PASS TEST
ARSENIC (As) -- 5 PPM
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