The salts should be dissolved into water to create a 10 litre solution. Citrox should be used on steel and ferrous metals. 

This kit contains chemicals that are classed as hazardous, so please check out over the safety data sheets and contact us if you have any questions. As the chemicals are hazardous, we use a specialist courier that is able to carry parcels that are labelled as LQ (limited quantity [hazardous]). Buyers from outside the UK should contact us as we are unfortunately unable to send to some countries. For estimated shipping costs and more information, head over to our Policies page.