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    1. 少妇熟女内射一区二区三区_亚洲肥婆一区二区三区_99se亚洲综合在线_日本中文字幕一区二区高清在线

      Welcome to Fujian Yongjing Technology Co., Ltd. the website!

      Contact us

      Add: 18#, Xin'An Road, Shaowu City, Fujian, China
      International Trade Dept.
      Tel: +86-599-6655932/6654968
      Fax: +86-599-6654591
      Home Trade Dept. 
      Tel: +86-599-6654866/6654968
      Fax: +86-599-6655755
      High-purity Chemicals Dept.
      Tel: +86-599-6655536/6654968
      Fax: +86-599-6655755


      Products

      High-purity ammonium fluoride solution for industrial purpose

      Executive standard: GB/T 30901-2014

      Item

      Index

      UP-S

      UP-SS

      ammonium fluoride w/% ≤

      40.0±1.0

      40.0±1.0

      ammonium fluosilicate[as (NH4)2Si F6]w/ (mg/kg) ≤

      10

      10

      Hazen ≤

      10

      10

      PH (10g/L solution, 25℃) ≤

      6.0-7.5

      6.0-7.5

      chloride (as Cl)  w/ (mg/kg) ≤

      3

      0.2

      nitrate (as NO3) w/ (mg/kg) ≤

      3

      0.1

      phosphate (as PO4)w/ (mg/kg)≤

      1

      0.1

      sulfate (as SO4)  w/ (mg/kg)≤

      3

      0.2

      alumnium (Al)w/ (μg/kg) ≤

      1

      0.1

      arsenic (As)w/ (μg/kg) ≤

      1

      0.1

      boron (B)w/ (μg/kg)  ≤

      1

      0.1

      barium (Ba)w/ (μg/kg) ≤

      1

      0.1

      calcium (Ca)w/ (μg/kg) ≤

      1

      0.1

      cadmium (Cd)w/ (μg/kg) ≤

      1

      0.1

      chromium (Cr)w/ (μg/kg) ≤

      1

      0.1

      copper (Cu)w/ (μg/kg) ≤

      1

      0.1

      iron (Fe)w/ (μg/kg)≤

      1

      0.1

      potassium (K)w/ (μg/kg)≤

      1

      0.1

      lithium (Li)w/ (μg/kg)  ≤

      1

      0.1

      magnesium (Mg)w/ (μg/kg) ≤

      1

      0.1

      manganese (Mn)w/ (μg/kg) ≤

      1

      0.1

      sodium (Na)w/ (μg/kg) ≤

      1

      0.1

      nickel (Ni)w/ (μg/kg) ≤

      1

      0.1

      lead (Pb)w/ (μg/kg) ≤

      1

      0.1

      titanium (Ti)w/ (μg/kg) ≤

      1

      0.1

      antimony (Sb)w/ (μg/kg) ≤

      1

      0.1

      tin (Sn)w/ (μg/kg) ≤

      1

      0.1

      zinc (Zn)w/ (μg/kg) ≤

      1

      0.1

      particle

      (≥0.5μm)/ (/mL) ≤

      10

      -

      (≥0.2μm)/ (/mL) ≤

      -

      10

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      少妇熟女内射一区二区三区_亚洲肥婆一区二区三区_99se亚洲综合在线_日本中文字幕一区二区高清在线
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