Chromium(VI) oxide CAS# 1333-82-0

Chromium(VI) oxide, Promotion Season Now in Store and Free Sample for Testing with Factory Price
  • Appearance:Dark red flaps
  • Assay: 99. 8%min
  • Packaging:50kg/ Steel drum
  • Sample: Available

Quality Control of Chromium(VI) oxide

Chemical Structure
Chromium(VI) oxide CAS# 1333-82-0
Packing of Chromium(VI) oxide

Description of Chromium(VI) oxide

Chromium trioxide is an inorganic compound with the formula CrO3. It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. This compound is a dark-purple solid under anhydrous conditions, bright orange when wet and which dissolves in water concomitant with hydrolysis. Millions of kilograms are produced annually, mainly for electroplating. Chromium trioxide is a powerful oxidiser and a suspected carcinogen.

Basic Info of Chromium(VI) oxide

Basic Info

Chemical Name

chromium trioxide


Chromium Trioxide;CROMIUM TRIOXIDE;Chromium(VI) oxide;Chromic anhydride;Chromium Oxide;Expand



Molecular Formula


Molecular Weight







Safety Info



Hazard Class


Safety Statements


HS Code


WGK Germany


Packing Group



UN 1463

Risk Statements

R24/25; R26; R35; R42/43; R45; R46; R48/23; R50/53; R62; R9

Hazard Codes

O; T+; N


GHS03, GHS05, GHS06, GHS08, GHS09

Hazard Declaration

H271; H301 + H311; H314; H317; H330; H334; H340; H350; H361f; H372; H410

Signal Word


Caution Statement

P201; P210; P260; P280; P284; P301 + P310 + P330; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338; P308 + P313; P371 + P380 + P375; P403 + P233



Appearance & Physical State

dark red crystals or powder



Boiling Point


Melting Point


Freezing Point


Flash Point


Water Solubility

Highly soluble


Stable. Strong oxidizer. Reacts with most organic material in a violent and often explosive fashion. Moisture sensitive.

Storage Condition

Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.


Numbering system

RTECS number


MDL number


PubChem number


EINECS number



Share on facebook
Share on twitter
Share on linkedin

What is Chromium(VI) oxide?

With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Chromium(VI) oxide which has developed particularly rapidly in recent years. Do you know about Chromium(VI) oxide?


The official answer:Chromium trioxide is an inorganic substance with the molecular formula CrO3 and a molecular weight of 99.99. It is a dark red or dark purple rhombohedral crystal, easily deliquescent. It begins to decompose when heated to the melting point and decomposes completely when heated to the boiling point. Used in the production of chromium compounds, oxidizing agents, catalysts, in addition to wood preservation, electroplating, etc. Produced by the reaction of concentrated sulfuric acid and potassium dichromate. 

What’s the application of Chromium(VI) oxide?

1、It is mainly used in the electroplating industry, as raw material for electroplating chromium of bicycle, sewing machine, watch, meter, flashlight, daily hardware, etc. It is also used to make high purity chromium metal. It is the raw material for manufacturing chrome oxide green and zinc chrome yellow; it is also the raw material for producing low-temperature conversion catalysts, high-temperature conversion catalysts, and high-pressure methanol synthesis catalysts. It is used as a mordant in dyeing wool fabric and as an oxidizer in the printing and dyeing industry. In addition, it is also used for wood preservation.

2、Used as a catalyst for taking medium-pressure polyethylene by Phillip’s method.

3, an important chromium compound, chromic anhydride is the most important raw material for the electroplating industry, used as the main raw material for electroplating chromium. Most chromic anhydride is consumed in the electroplating industry. Chromic anhydride is a good oxidizing agent, used in bleaching and refining, also used as raw material for dyes, mordant, tanning agent, and catalyst for organic synthesis reaction. In addition, it is also used in medicine, ceramics, colored glass, and other industries.

4、Used as analytical reagent, strong oxidizing agent, and preparation of chromate.

5、Used as a catalyst for the synthesis of polyethylene. Also used in chromium plating, mordant, and preparation of pure chromium metal.

6、Application in the passivation of galvanization Most of the passivation of galvanization layer uses chromic anhydride, which is the main component of film formation. In the chemical oxidation of aluminum and alloys, chromic anhydride is the oxidizing agent in the solution and an indispensable component for the formation of the film layer.

7、It is used in the electroplating industry, pharmaceutical industry, printing industry, leather tanning, and fabric mordanting.


Sincere to the customer and in good faith of quality is our forever followed motto. It’s the basement to be a human and do business. We take all responsibility for our products and service sincerely. We are a company integrating R&D, production, and sales. The design, research, and development of pharmaceutical intermediates including more than 330 kinds of pharmaceutical intermediates such as Anti-infectives, Cardiovascular and Cerebrovascular Systems, Digestive System, Santi-tumor, Nervous System, Geriatric Drugs, and Gynecological Drugs. At the same time, we have more than 4,000 factories in strategic cooperation with nearly 50,000 chemical products, so we can provide you with a one-stop purchasing service, which greatly saves customers’ procurement costs and time.

Hello, I’m Pew Ni, the chemical products one-stop solution expert.

Hi, I‘m Peter Ni, the founder of Sincere-Chem, I’ve been running a company in China that exporting chemicals, pharmaceuticals, and intermediates for over 70 countries now. And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.

CEO Email:

CEO Phone Number:
+86-188-6575 9396

CEO WhatsApp:
+86-188-6575 9396

Request A Free Quote

Keywords of Chromium(VI) oxide

Chromium(VI) oxide , 1333-82-0, buy Chromium(VI) oxide , Chromium(VI) oxide  supplier, purchase Chromium(VI) oxide , Chromium(VI) oxide  cost, Chromium(VI) oxide  manufacturer, order Chromium(VI) oxide , high purity Chromium(VI) oxide


United Kingdom Giles
United Kingdom Giles
Read More
Peter has been my partner for many years, we met at the Shanghai CPHI Fair in 2014, for the first time I didn't have much interest in Peter's products because our company had a stable supplier. Although we didn't work together, Peter would often send me important news and interesting trend information about the industry, so we became good friends, even though I didn't place any orders with him during this time, even if it was a sample order. In September 2016, our original supplier was unable to provide us with the quality and delivery guarantees we needed, so I first thought of Peter and his company. Until now, we have maintained a very good personal friendship in addition to a steady business relationship.
India Shikhar
India Shikhar
Read More
In all my years of sourcing from China, I first time to found that working with Sincere Chemical was so good, they helped me with all the production and delivery as well as a lot of technical expertise, which saved me a lot of time. When I first approached Peter for a quotation for Optical Brightener, he made me a detailed quotation with not only prices but also foreign trade details, company profile, company strengths, R&D capabilities, production capacity, packaging methods, raw material control, environmental protection, and much more. This information was a very important reference for me in making purchasing decisions. Sincere Chemical is a trustworthy supplier and I believe our business will grow from strength to strength!
Korea Kim
Korea Kim
Read More
Hi, I'm Kim, I'm Peter's partner and although I don't like him very much (because he never gives me more money for my prices, hahaha) I'm still willing to write him customer feedback. As an international buyer, I have to deal with a lot of things every day and my inbox is often full of development letters. It's a lot of junk and meaningless pleasantries, which I don't like that much, but Peter's emails always give me a better understanding of the product and the industry. I am also very pleased with his work ethic, and I am very happy with his work every time I work with him, not only in providing quotations but also in facilitating all the details of my work so that I can concentrate more on other things, so he is the best supplier for me. Although his prices are not the lowest among all suppliers, his products give me the greatest peace of mind.
USA Franklin
USA Franklin
Read More
Sincere Chemical team visited our USA factory in the year of 2017. We think highly of cooperation with them. We thanked you for the past excellent orders and best product quality. We also talked about some new products for future orders. We will be still in strategic cooperation in the future and help each other.
Canada Kate
Canada Kate
Read More
I just got the product. The quality is awesome. I’m very happy. Hope to place soon a new order in your company. Also wish for our future business.
Read More
Sincere Chemical is a reliable and professional company. Not only on exporting but also their professional team service. Their team gave us so many suggestions for our new project. We are really satisfied with their awesome service and best product quality. Sincere-Chem’s vendor code is 51465768 in our cooperated vendor list system.
Read More
I have visited Sincere Chemical company in the year 2018. Their company can be considered as one of the most professional, customer-focused, and product quality-driven companies that I have worked with in recent years.
Brazil Aline
Brazil Aline
Read More
We are a pharmaceutical products manufacturer in Brazil. I’m happy to cooperate with Sincere Chemical especially cooperate with Peter. Peter is patient and friendly. I’m satisfied with his 24*7 hours service. We are not only cooperators but also best friends with each other.
Mexico Gonzalo
Mexico Gonzalo
Read More
Great service and very supportive. This is my first order and I feel fortunate to be with Peter and his company. Product received was the right good quality product, so my review is more related with the quality, service and shipment. Thank you for sending. next time I will order again. Good supplier...