Microcosmic salt: Difference between revisions
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| IUPACName = Ammonium sodium phosphate |
| IUPACName = Ammonium sodium phosphate |
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| OtherNames = M |
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| OtherNames = Microcosmic salt, ammonium sodium phosphate, ammonium sodium hydrogen phosphate or phosphorsalz |
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| Reference = <ref>{{cite book|title=The Merck Index|year=1983|publisher=Merck and Co. Inc.|isbn=011910271|pages=561}}</ref> |
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| Section1 = {{Chembox Identifiers |
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| CASNo = 13011-54-6 |
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| Section2 = {{Chembox Properties |
| Section2 = {{Chembox Properties |
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Revision as of 10:40, 22 July 2013
| Names | |
|---|---|
| IUPAC name
Ammonium sodium phosphate
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| Other names
M
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Section2 = ! colspan=2 style="background: #f8eaba; text-align: center;" |Properties
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| (NH4)NaHPO4
|- | Molar mass
| 137.0077 g/mol
|- | Appearance | odorless crystals |-
| Density | 1.544 g/cm3 |- | Melting point | 80 °C (176 °F; 353 K)
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| 5 parts cold, 1 part boiling water. Practically insoluble in ethanol |- | Section3 = ! colspan=2 style="background: #f8eaba; text-align: center;" |Structure
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| Monoclinic |- | Section4 = }}
Microcosmic salt (see infobox for other names) is a salt found in urine with the formula (NH4)NaHPO4. In the mineral form, microcosmic salt is called stercorite.
The first extraction of pure phosphorus came from this salt, when Hennig Brandt attempted to extract gold from urine.
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.
References
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