Singhal Silica Udyog
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Pure Natural Minerals

Chemicals & Oxides

The specifications of pure grade chemicals are as follows:

  • Parameters
  • Concentration as HF % Min
  • Non-Volatile acid as H2SO4 % Max
  • Hydro fluosilicic acid as H2SiF6 % Max
  • 35%
  • 35%
  • 0.05
  • 0.05
  • 40%
  • 40
  • 0.05
  • 0.05
  • 50%
  • 50
  • 0.05
  • 0.05
  • 55%
  • 55
  • 0.06
  • 0.06
  • 60%
  • 60
  • 0.07
  • 0.07
  • 70%
  • 70
  • 0.07
  • 0.07

Specifications:

CAS no.: 7664-39-3
UN no.: 1090
Hazchem code: 4 WE (For >60%)

Applications:

For removal of scales in stainless steel
In preparation of micro electronic circuits
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