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Science 10 April 1964:
Vol. 144. no. 3615, pp. 169 - 170
DOI: 10.1126/science.144.3615.169
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Articles

Sodium Chloride: Modification of Crystal Habit by Chemical Agents

Richard S. Ploss 1

1 Baird-Atomic, Inc., 33 University Road, Cambridge, Massachusetts

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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Science. ISSN 0036-8075 (print), 1095-9203 (online)