Hydrogen chloride




Hydrogen chloride (HCl) is an important industrial acid in Western Australia used in a broad range of resource developing industries. It is traditionally produced by reacting sodium chloride (common salt) with sulfuric acid and produced by chloralkali plants where there is surplus chlorine or if favoured by the economics of the region.

The chlorine used in the titanium dioxide pigment plants results in nearly all being converted to hydrochloric acid. About 40 000 tonnes of hydrochloric acid is produced by the two plants at a concentration of about 30 per cent (commercial grade is 33 per cent). Though of high concentration, the acid contains inorganic impurities such as silicates which render it unsuitable for many applications. Some hydrochloric acid is used but most is neutralised with lime to produce about 10 000 tonnes of calcium chloride at each plant that is either washed to sea as a non-polluting dilute effluent (by Tiwest), or stored in settling tanks pending disposal (by SCM).

Nufarm, Coogee and CSBP both manufacture hydrochloric acid at their chloralkali plants by direct synthesis from hydrogen and chlorine, (previously producing it by the chemical reaction of sodium chloride with sulfuric acid). Local demand and production patterns favour this inherently more expensive route.

This report is NOT indicative of our private client reports.

It has been prepared simply to get you started. It is cheaper than you will find on the web for other detailed information and thus we rarely recover the cost of its preparation.

Given the value of your time, if only a small percentage of the information proves useful, then it should have paid for itself. Feel free to discuss the preparation of a confidential custom report.


Chemlink Pty Ltd ABN 71 007 034 022. Tel 61 8 9294 3254 Publications 1997. All contents Copyright 1997. All rights reserved. Information in this document is subject to change without notice. Products and companies referred to are trademarks or registered trademarks of their respective companies or mark holders. URL: www.chemlink.com.au