Microcosmic salt

Microcosmic salt
Microcosmic salt[1]
IUPAC name
Ammonium sodium phosphate
Other names
Microcosmic salt, ammonium sodium phosphate, ammonium sodium hydrogen phosphate or phosphorsalz
Identifiers
CAS number 13011-54-6 YesY
Properties
Molecular formula (NH4)NaHPO4
Molar mass 137.0077 g/mol
Appearance odorless crystals
Density 1.544 g/cm3
Melting point

80 °C, 353 K, 176 °F
Solubility in water 5 parts cold, 1 part boiling water. Practically insoluble in ethanol
Structure
Crystal structure Monoclinic
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

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 radicles on the basis of the color they produce in oxidising or reducing flame, in hot or cold condition.

Microcosmic salts form a tetrahydrate.

References

  1. ^ The Merck Index. Merck and Co. Inc.. 1983. pp. 561. ISBN 011910271. 

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Look at other dictionaries:

  • Microcosmic salt — Salt Salt, n. [AS. sealt; akin to OS. & OFries. salt, D. zout, G. salz, Icel., Sw., & Dan. salt, L. sal, Gr. ?, Russ. sole, Ir. & Gael. salann, W. halen, of unknown origin. Cf. {Sal}, {Salad}, {Salary}, {Saline}, {Sauce}, {Sausage}.] 1. The… …   The Collaborative International Dictionary of English

  • Microcosmic salt — Microcosmic Mi cro*cos mic, Microcosmical Mi cro*cos mic*al, a. [Cf. F. microcosmique.] Of or pertaining to the microcosm. [1913 Webster] {Microcosmic salt} (Chem.), a white crystalline substance obtained by mixing solutions of sodium phosphate… …   The Collaborative International Dictionary of English

  • microcosmic salt — n. a white, crystalline salt, Na(NH4)HPO4·4H2O, used as a reagent in blowpipe analysis because it forms characteristically colored compounds when fused with salts and oxides of metals …   English World dictionary

  • microcosmic salt — fosforo druska statusas T sritis chemija formulė NaNH₄HPO₄·4H₂O atitikmenys: angl. microcosmic salt; phosphorus salt rus. фосфорная соль …   Chemijos terminų aiškinamasis žodynas

  • microcosmic salt — noun a white salt present in urine and used to test for metal oxides • Hypernyms: ↑salt …   Useful english dictionary

  • microcosmic salt — noun A white salt, extracted from urine; once used in the preparation of phosphorus, and used in analytical tests for some metals; ammonium sodium hydrogenphosphate (NH)NaHPO …   Wiktionary

  • microcosmic salt — Chem. See sodium ammonium phosphate. [1775 85] * * * …   Universalium

  • microcosmic salt — /maɪkrəˌkɒzmɪk ˈsɒlt/ (say muykruh.kozmik solt) noun a phosphate of sodium and ammonium, NaNH4HPO4.4H2O, originally obtained from human urine, used as a blowpipe flux in testing metallic oxides …  

  • salt of phosphorus — microcosmic salt …   Useful english dictionary

  • Salt — Salt, n. [AS. sealt; akin to OS. & OFries. salt, D. zout, G. salz, Icel., Sw., & Dan. salt, L. sal, Gr. ?, Russ. sole, Ir. & Gael. salann, W. halen, of unknown origin. Cf. {Sal}, {Salad}, {Salary}, {Saline}, {Sauce}, {Sausage}.] 1. The chloride… …   The Collaborative International Dictionary of English

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