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Ammonium sodium phosphate
Microcosmic salt, ammonium sodium hydrogen phosphate or phosphorsalz
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||137.0077 g/mol|
|Melting point||80 °C (176 °F; 353 K)|
|5 parts cold, 1 part boiling water. Practically insoluble in ethanol|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
(what is ?)
Microcosmic salt (see infobox for other names) is a salt found in urine with the formula Na(NH4)HPO4. It is left behind in the residues after extracting the urea from dried urine crystals with alcohol. In the mineral form, microcosmic salt is called stercorite.
Microcosmic salt is used in the laboratory as an essential ingredient of the microcosmic salt bead test for identification of metallic radicals on the basis of the color they produce in oxidising or reducing flame, in hot or cold condition.
Microcosmic salts form a tetrahydrate.