Materials and Construction
Containers made of high silicon cast iron (14% Si) are not suitable for the storage of

Hydrochloric acid (concentrated)
Phosphoric acid (95%) & sulphuric acid (95%)
Benzoic & boric acids
Acetic acid

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Materials and Construction
Monel alloy is

Not suitable for making kitchen utensils
The costliest of all the alloys of nickel
Used for making steam valves and turbine blades as it resists steam attack at high temperature
Not used in cast and wrought forms

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