18 HCl + 4 HNO3 + 3 Pt → 8 H2O + 4 NO + 3 H2PtCl6
This is an oxidation-reduction (redox) reaction:
3 Pt0 - 12 e- → 3 PtIV (oxidation)
4 NV + 12 e- → 4 NII (reduction)
Pt is a reducing agent, HNO3 is an oxidizing agent.
Reactants:
- HCl – Chlorane
, Hydrogen chloride
- Other names: Hydrochloric acid
, M
, Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated
; Colorless gas
; Colourless compressed liquefied gas with pungent odour
; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
- Other names: Hydrochloric acid
- HNO3 – Nitric acid
- Other names: Aqua fortis
, Spirit of niter
, Eau forte
- Appearance: Colorless, yellow or red fuming liquid
; Colourless-to-yellow liquid with pungent odour
; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]
- Other names: Aqua fortis
- Pt
Products: