water in glass

What is ferric chloride

Ferric chloride — otherwise known as flocculant, iron trichloride, or iron(III) chloride — is often found in the form of an aqueous solution that can be anywhere from colorless to light brown in appearance with a faint hydrochloric acid odor. It is a chemical compound consisting of iron and chlorine. Much ferric chloride is recycled from a liquid left behind in the steel-making process. Without ferric chloride, a clear, clean public supply of water of any sort would be difficult to obtain.

Brenntag North America is a popular and reliable distributor of ferric chloride and other chemicals and ingredients. We efficiently ship the exact quantity you need directly to your facility no matter where you are in the United States.

Buy Various grades of ferric chloride

Buy Ferric Chloride online

water drop

Ferric Chloride Properties

This chemical compound is a hexagonal red by transmitted light and green by reflected light, appearing often as a brownish-black powder. It is noncombustible but acidic and extremely corrosive to almost all metals and tissue. It has a molecular formula of FeCl3 and weight of 162.195 g/mol. Its boiling point is about 316° C. Ferric chloride is extremely poisonous to humans by ingestion, so safe handling and labeling are crucial.


Ferric chloride is a chemical solution that effectively clumps together minute contaminant particles in water solutions. This process makes water purification possible. Large debris is easily filtered out of water, but contaminant particles typically float near the surface. Ferric chloride causes them to clump and sink. Many crucial life processes require clean water and ferric chloride is now a common part of the treatment of industrial water, wastewater, drinking water, and more. Water purification and sewage treatment rely heavily on the efficiency and effectiveness of ferric chloride. Some surprising, uncommon applications for ferric chloride have nothing to do with water treatment. For instance, some American coin collectors use ferric chloride to identify the worn-down dates on Buffalo nickels. Many veterinarians use ferric chloride to treat bleeding animal claws if one has been nicked. Ferric chloride is also used to make printed circuit boards and energy storage systems, among seemingly endless other applications.


At Brenntag North America, we stock an inventory of more than 10,000 chemicals and other ingredients — including the ferric chloride you need for your precise water treatment or other processes.

Our top priority is quality customer service, which has kept more than 180,000 customers throughout several different industries satisfied. If you are looking for where to get ferric chloride, you have found the right distributor. Contact one of our attentive customer service representatives to find out more about ferric acid and our affordable prices.

Complete the form to start the conversation

This document is for informational purposes only. You accept sole responsibility for reading and complying with the Safety Data Sheets (SDS’s), as well as any other safety information, relating to the products listed herein. The information contained herein is based on Brenntag’s knowledge at the time of publication or release and not on any publications, independent studies, empirical evidence or other form of verification. You should not use or rely on any statements contained herein as a basis for any representations or warranties to your customers or end users as to the safety, efficacy or suitability of any product or for purposes of ensuring your compliance with any laws or regulations. Brenntag makes no warranties, express or implied, as to the accuracy, completeness, or adequacy of the information contained herein or as to fitness of any product for any particular purpose. Nothing contained herein shall be construed as an authorization to use or an inducement to practice any patent, trade secret or other intellectual property right. Before producing and distributing any product, it is your sole responsibility to adequately test and document the performance of the product and acquire any required intellectual property rights. You assume all risks for failing to do so and Brenntag shall not be liable (regardless of fault) to you, your employees, customers or end users or any third party for direct, special or consequential damages arising out of or in connection with the furnishing or use of this information. Please contact your local Brenntag representative if you have any questions about this information.