Potassium Dichromate

Potassium Dichromate (K₂Cr₂O₇) Supplier for Non-EU Markets & Authorized Users

Chemical name Potassium Dichromate
Chemical formula K₂Cr₂O₇
CAS number 7778-50-9
EC number 231-906-6
UN number UN 3086
ADR classification Class 6.1 (5.1) – Toxic Oxidizing Solid
Packing group II

Gentrochema supplies Potassium Dichromate (K₂Cr₂O₇) exclusively under specific regulatory conditions and in accordance with applicable international chemical legislation and hazardous goods transport regulations.

Potassium dichromate is a hexavalent chromium compound (Cr VI) listed under REACH Annex XIV (Authorisation List) and classified as a Substance of Very High Concern (SVHC) within the European Union.

Regulatory Status

Gentrochema BV no longer holds an active EU REACH Authorisation for Potassium Dichromate.

As a result, Gentrochema can only supply this product under the following conditions:

  • Supply to customers located outside the European Union / European Economic Area
  • Supply under T1 customs status (non-EU customs cleared goods)
  • Supply to customers who possess their own valid REACH Authorisation for the intended use within the EU/EEA

Potassium dichromate may therefore only be supplied where all applicable regulatory obligations are fulfilled by the customer or where the material remains outside EU customs free circulation.

What is Potassium Dichromate?

Potassium dichromate (K₂Cr₂O₇) is an orange-red crystalline inorganic compound containing hexavalent chromium (Cr VI). The product is a strong oxidizing agent and has historically been widely used in industrial chemical processes and specialized surface treatment applications.

The substance is highly soluble in water and valued for its oxidizing, corrosion-inhibiting, and metal treatment properties. The product is supplied as an orange crystalline solid.

Due to its toxicological classification and environmental hazards, potassium dichromate is subject to strict regulatory control under REACH, CLP, ADR, IMDG and IATA legislation.

The substance is classified as:

  • Toxic
  • Carcinogenic
  • Mutagenic
  • Reprotoxic
  • Environmentally hazardous
  • Strong oxidizer

Signal word: Danger.

Industrial Applications

Potassium dichromate has historically been used in specialized industrial applications such as:

  • Safety matches industry (oxidizing agent)
  • Metal surface treatment
  • Aerospace & defense applications
  • Corrosion inhibition systems
  • Laboratory reagents
  • Pigment and specialty chemical manufacturing
  • Wood preservation systems
  • Chromium compound production
  • Oxidation processes in chemical industry

In the safety matches industry, potassium dichromate is used as a powerful oxidizing agent in specialized match compositions and ignition systems.

Certain industrial applications within the EU/EEA may still be permitted only where covered by a valid REACH Authorisation held by the user or upstream supply chain.

Safety & Handling

Potassium dichromate must be handled exclusively by trained professionals using appropriate industrial safety procedures and personal protective equipment.

Avoid inhalation of dust and prevent contact with skin and eyes. The product should be stored in tightly closed original packaging in a dry and well-ventilated area, away from combustible materials, reducing agents, acids and incompatible substances.

For transport purposes the product is classified as:

  • UN 3086
  • ADR Class 6.1 (5.1)
  • Packing Group II
  • Environmentally hazardous substance

Packaging & Logistics

Potassium dichromate is supplied exclusively in:

  • 25 kg bags
  • 1000 kg pallet units

Minimum order quantity:

  • 1000 kg per order/shipment

The product is packed in suitable hazardous goods packaging for international transport and export applications, subject to applicable legal restrictions and customer compliance obligations.

Supply possibilities are evaluated case-by-case depending on destination country, regulatory status and intended application.

International Supply & Compliance

Gentrochema supports international customers with:

  • Export logistics
  • T1 customs procedures
  • Dangerous goods documentation
  • International transport coordination
  • Regulatory communication

Customers are solely responsible for ensuring compliance with all applicable local, national and international regulations concerning the import, use, storage and handling of Potassium Dichromate.

Request Information

For regulatory inquiries, export possibilities, technical specifications or international supply requests regarding Potassium Dichromate, please contact our team directly.

👉 info@gentrochema.nl
👉 www.gentrochema.nl