sal ammoniac

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sal ammoniac:

see ammonium chlorideammonium chloride
, chemical compound, NH4Cl, a white or colorless, odorless, water-soluble, cubic crystalline salt with a biting taste, commonly known as sal ammoniac.
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sal ammoniac, ammonium chloride

A material used in a soldering flux and as an ingredient in iron cement.
References in periodicals archive ?
Interestingly, while Scacchi's sal ammoniac crys tals lacked the set of terminal {211} faces mentioned above and thus were quite pointed, Hintze's sodalite crystals retained both sets of terminal {211} faces and thus had a very blunt termination.
There are isolated examples of similar twins of sphalerite and sal ammoniac, but only a few other species are likely to form such twins.