Metal rust-removing and rust-preventing solution and metal rust-removing and rust-preventing method

Metal rust-removing and rust-preventing solution and metal rust-removing and rust-preventing method

  • CN 105,755,482 A
  • Filed: 02/01/2016
  • Published: 07/13/2016
  • Est. Priority Date: 02/01/2016
  • Status: Active Application
First Claim
Patent Images

1. a metal rust-removing anti-rust liquid, it is characterised in that the solvent of described metal rust-removing anti-rust liquid is water, to account for the percentages of derusting rust-proofing liquid gross mass, comprises following solute:

  • Phosphoric acid 25~

    30%;

    Chromic anhydride 0.2~

    0.4%;

    Nitric acid 2~

    4%.

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