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Potassium dichromate

Potassium bichromate; Kaliumdichromat; dipotassium dichromate

CAS 7778-50-9

Chemical Formula K₂Cr₂O₇

Molecular Weight 294.18 g/mol

Potassium dichromate is a bright orange-red crystalline compound commonly used as a strong oxidizing agent in laboratories and industrial processes. It plays a key role in applications such as cleaning laboratory glassware, etching materials, and in the manufacture of dyes and pigments. It is also used in tanning leather and sometimes in photography. Due to its toxicity and carcinogenic nature, its use is regulated and safety precautions are essential.

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Industrial Uses

1. Metal treatment

Passivation: Potassium dichromate is used to form a protective film on the surface of metals, particularly galvanized steel, which helps to prevent corrosion. This process, called passivation, involves dipping the metal into a solution containing a chromate salt, which then reacts with the metal to form a stable, protective layer.
Metal Finishing: Potassium dichromate is used in various metal finishing processes, including electroplating, where it can be used to create decorative or hard plating for corrosion resistance.
Chrome plating: Potassium dichromate is used particularly in chrome plating, as an oxidizing agent and to form a corrosion-resistant film. It's part of the chrome plating process, where it helps to create a dichromate-based conversion coating that protects metals from corrosion.

2. Performance Chemicals

Primary Alcohols: Potassium dichromate can oxidize primary alcohols to aldehydes or carboxylic acids. The reaction conditions, such as temperature and the presence of a strong acid like sulfuric acid, influence the end product.
Secondary Alcohols: Potassium dichromate converts secondary alcohols into ketones.
Analytical Chemistry: It's used as an analytical reagent, particularly in ""wet tests,"" due to its non-hygroscopic nature.

Specifications

Assay	99%
Appearance	Bright orange-red crystalline solid
Odor	Odorless
Boiling Point	Decomposes before boiling
Melting Point	398°C
Density	2.68 g/cm3
Solubility	Soluble in water; slightly soluble in alcohol
Viscosity	Not applicable
Flash Point	Not applicable

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FAQs

1. What is the current price of Potassium dichromate in India?
The price of Potassium dichromate can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.6301 00 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Potassium dichromate in India?
You can purchase Potassium dichromate from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Potassium dichromate?
Our minimum order quantity (MOQ) for Potassium dichromate is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Potassium dichromate supplied by Multichem?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.