REACH Registration Status

Statement on REACH Registration of Borate Substances

U.S. Borax can confirm that it has registered certain borate substances manufactured and imported into Europe according to REACH ((EC) No. 1907/2006) under the legal entities listed below. The registration status is given in the table below. Registrations are for substances only: Mixtures (or preparations) are covered by the registration of the individual component substances.

Please note: If your company is based outside of Europe and exports products containing any of the substances below to Europe, please contact us for further information to learn how U.S. Borax may be able to assist you.

Registering legal entity: Rio Tinto Iron & Titanium GmbH (5)

Sustance chemcial name EC number   U.S. Borax products Registration number
Boric acid 233-139-2 Optibor® – all grades
Boric Acid MG
Diboron trioxide 215-125-8 Boric oxide – all grades 01-2119486655-24-0018
Disodium tetraborate, anhydrous 215-540-4 Dehybor® – all grades
Disodium tetraborate pentahydrate Neobor® – all grades
Disodium tetraborate decahydrate Borax decahydrate – all grades  
Disodium octaborate tetrahydrate 234-541-0 Polybor®
Hexaboron dizinc undecaoxide 235-804-2 Firebrake® 500
Firebrake ZB – all grades

Registering legal entity: Borax Français S.A.S.

Sustance chemcial name EC number   U.S. Borax products Registration number
Potassium pentaborate 234-371-7 Potassium pentaborate 01-2119970729-20-0000
Dipotassium tetraborate 215-575-5 Potassium tetraborate 01-2119970730-37-0000
Sodium metaborate, anhydrous 231-891-6 Sodium metaborate 8-mol
Sodium metaborate 4-mol
Pentaboron sodium octaoxide 234-522-7 Sodium pentaborate 01-2119970731-35-0000
Reaction products of monoethanolamine and boric acid (1:3)  701-024-0 Liquibor® 01-2119557854-26-0002
Diammonium decaborate 234-521-1 Ammonium pentaborate 01-2119970312-43-0001


For more information, contact:

May 2020

U.S. Borax, part of Rio Tinto, is a global leader in the supply and science of borates—naturally-occurring minerals containing boron and other elements. We are 1,000 people serving 650 customers with more than 1,800 delivery locations globally. We supply around 30% of the world’s need for refined borates from our world-class mine in Boron, California, about 100 miles northeast of Los Angeles.  Learn more about Rio Tinto.

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