Today I Made...

(A product a day! Food for thought on: 1. The raw materials - Where can I find this raw material? Locally or imported? Cost? 2. The process - What kind of process? Chemical, physical, biological? Cost and safety considerations? If there are a number of alternative processes, which is the most energy efficient, most cost effective, and safest? 3. The product - What will the product be used for? Where will it be marketed? Locally or exported? How much profit will I make?)

Friday, August 26, 2011

Zinc chloride

Raw materials

1. Zinc

2. Hydrogen chloride

Process

Anhydrous ZnCl₂ can be prepared from zinc and hydrogen chloride:

Zn + 2 HCl → ZnCl₂ + H₂

Hydrated forms and aqueous solutions may be readily prepared similarly by treating Zn metal with hydrochloric acid. Zinc oxide and zinc sulfide react with HCl:

ZnS (s) + 2 HCl (aq) → ZnCl₂ (aq) + H₂S (g)

Product

Zinc chloride

Used as/in

Metallurgical flux, organic synthesis, textile processing, smoke bombs, fingerprint detection, disinfectant

Today I Made...

Friday, August 26, 2011

Zinc chloride

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