Complaint
Chromic acid can only exist in aqueous solution, if it is precipitated from the aqueous solution, it will immediately decompose into chromic anhydride and water. Chromic acid has strong oxidability. Contact with sugar, fiber, benzene, ethanol, hydrogen peroxide will react violently, and even cause combustion.
Chromic acid is most commonly used as cleaning liquid in the laboratory, both acidic and oxidizing, can remove the fouling and insoluble material of the inner wall and the outer wall of the experimental instrument. Usually the solution is obtained by adding potassium dichromate to concentrated sulfuric acid, but hexavalent chromium is harmful to the environment, and strong acidic conditions can sometimes damage instruments, so the use of chromate washes has been reduced.
Chromic acid can be prepared with oxidant. Many organic compounds can be oxidized by chromic acid, and many hexavalent chromium based oxidants have been developed. Jones REAGENT: AQUEOUS solution of chromic ACID, sulfuric acid, and acetone oxidizes primary and secondary alcohols to corresponding carboxylic acids and ketones, in which unsaturated bonds are not affected. Pyridine chlorchromate: Prepared from chromium trioxide and pyridine hydrochloride to oxidize primary alcohols to aldehydes. Collins reagent: Adduct of chromium trioxide and pyridine.
In a sealed steel drum
1. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.what can you buy from us?
Caustic Soda, Paraffin, Ethylalcohol, PVC, Ferromanganese
3. why should you buy from us not from other suppliers?
Inner Mongolia Pulisi Chemical Co., Ltd. is a professional manufacturer, reliable and stable supplier in China by virtue of its superior geographical location, professional knowledge, excellent equipment, excellent product quality and excellent service. F
4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,FCA,DDP;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Japanese,Korean
