Explain the reasons for the following?a. HF stored in copper bottl

Question

Explain the reasons for the following?

a. HF stored in copper bottles and not glass bottles

b. Sodium hypochlorite used as a disinfectant

c. Graphite acts as a lubricant

d. Lead components are added to gasoline and why was it removed with the advent of catalytic convertors

e. TEL was banned as a gasoline additive

25 Mar 2022

Answer :

Word Count : 315

a. HF stored in copper bottles and not glass bottles

HF attacks sodium silicate which is the main constituent of glass. As a result, the glass bottles are slowly corroded or eaten up. Therefore, HF cannot be stored in glass bottles. It is normally kept in wax bottles.

Na2SiO3+6HF→Na2SiF6+3H2O

b. Sodium hypochlorite used as a disinfectant is NOT effective in the disinfection of bacterial spores and prions.

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