bionload.blogg.se - Chromium iii carbonate chemical formula

#CHROMIUM III CARBONATE CHEMICAL FORMULA FREE#

The chromium(III) carbonate is produced preferably by bringing an aqueous solution of a carbonic acid salt into contact with an aqueous solution containing trivalent chromium under such conditions that the reaction fluid temperature falls within the range of 0 DEG C to lower than 50 DEG C and at a pH of 6 to 12. It is preferable that the chromium(III) carbonate is completely dissolved within 30 minutes when the chromium(III) carbonate in an amount corresponding to one gram of Cr is added at 25 DEG C to one liter of an aqueous hydrochloric acid solution having a pH of 0.2. The chromium(III) carbonate exhibits an L* value of 50 to 70, an a* value of -4 to -2, and a b* value of -10 to -7, each value being defined in the L*a*b* color system (JIS Z8729).

#CHROMIUM III CARBONATE CHEMICAL FORMULA FREE#

C23C2222/10- Use of solutions containing trivalent chromium but free of hexavalent chromiumĪ chromium(III) carbonate which assumes a light blue color in a solid state.C23C2222/00- Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium.C23C- COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL.C23- COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMICAL SURFACE TREATMENT DIFFUSION TREATMENT OF METALLIC MATERIAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL.

expressed in CIELAB-values b* (yellow-blue axis) expressed in CIELAB-values a* (red-green axis) C01P2006/00- Physical properties of inorganic compounds.C01P- INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS.C25D3/06- Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium.C25D21/14- Controlled addition of electrolyte components.C25D21/12- Process control or regulation.C25D21/00- Processes for servicing or operating cells for electrolytic coating.

C01G- COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F.

C25D3/10- Electroplating: Baths therefor from solutions of chromium characterised by the organic bath constituents used.

C25D3/04- Electroplating: Baths therefor from solutions of chromium.

C25D3/02- Electroplating: Baths therefor from solutions.

C25D3/00- Electroplating: Baths therefor.

C25D- PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS ELECTROFORMING APPARATUS THEREFOR.

C25- ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR.

Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP2008228264 external-priority Application filed by Nippon Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd Publication of CN102143914A publication Critical patent/CN102143914A/en Status Pending legal-status Critical Current Links Original Assignee Nippon Chemical Industrial Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor 桑野弘行番田知宏田中保之 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Pending Application number CN2009801345660A Other languages Chinese ( zh) Google Patents CN102143914A - Chromium(III) carbonate and process for production of same CN102143914A - Chromium(III) carbonate and process for production of same