Sodium Chloride: Modification of Crystal Habit by Chemical Agents

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Science  10 Apr 1964:
Vol. 144, Issue 3615, pp. 169-170
DOI: 10.1126/science.144.3615.169


Microscopic investigation of drops of brine evaporating in air revealed crystal forms of sodium chloride other than the cube, when cysteine, creatinine, papain, monosodium glutamate, sodium hexametaphosphate, a combination of sodium hexametaphosphate and aluminum salt, or aluminon were added to the brine in small amounts. Some of these have a definite effect in parts per million concentration.

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