Ammonium magnesium phosphate

Structural formula
General
Surname	Ammonium magnesium phosphate
Molecular formula	NH 4 MgPO 4
Brief description	white crystals
External identifiers / databases
EC number	232-075-2
ECHA InfoCard	100.029.159
PubChem	15894839
ChemSpider	155566
Wikidata	Q473562
properties
Molar mass	137.32 g mol −1 (anhydrous)
Physical state	firmly
solubility	almost insoluble in water (0.2 g / L)
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 315-319-335
	P: 261-280-305 + 351 + 338-304 + 340-405-501
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Ammonium magnesium phosphate is a salt made from ammonium and magnesium cations and phosphate anions with the formula (NH ₄ MgPO ₄ · x H ₂ O). It is also known as triple phosphate .

Occurrence

The compound occurs as the mineral struvite in guano , for example , and often comes from human or animal waste. The connection is found in the urine sediment . Furthermore, ammonium magnesium phosphate can form during biogas production in dry fermentation plants.

properties

Ammonium magnesium phosphate crystals in a dog's urine.

Ammonium magnesium phosphate forms colorless, water-insoluble, but acid-soluble, highly refractive crystals that appear in the coffin lid - or very rarely in the form of bracken .

use

Ammonium magnesium phosphate is formed during the detection reaction of magnesium ions (Mg ²⁺ ) with diammonium hydrogen phosphate .

Individual evidence

↑ ^a ^b ^c ^d data sheet ammonium magnesium phosphate hydrate from AlfaAesar, accessed on December 7, 2019 ( PDF )(JavaScript required) .
↑ Phillip Barak and Alysa Stafford: STRUVITE: A RECOVERED AND RECYCLED PHOSPHORUS FERTILIZER ( memento June 20, 2010 in the Internet Archive ), accessed April 2, 2014
↑ Giovanni B. Fogazzi al .: et urinalysis: Core Curriculum 2008 . In: American Journal of Kidney Diseases . Vol. 51, Issue 6, 2008, pp. 1052-1067 , doi : 10.1053 / j.ajkd.2007.11.039 ( article ).
^ E. Schweda: Jander / Blasius: Inorganic Chemistry I - Introduction & Qualitative Analysis . 17th edition. Hirzel, 2012, ISBN 978-3-7776-2134-0 , pp. 301 .

[alfa-1] ta sheet ammonium magnesium phosphate hydrate from AlfaAesar, accessed on December 7, 2019 ( PDF )(JavaScript required) .

[2] Phillip Barak and Alysa Stafford: STRUVITE: A RECOVERED AND RECYCLED PHOSPHORUS FERTILIZER ( memento June 20, 2010 in the Internet Archive ), accessed April 2, 2014

[3] Giovanni B. Fogazzi al .: et urinalysis: Core Curriculum 2008 . In: American Journal of Kidney Diseases . Vol. 51, Issue 6, 2008, pp. 1052-1067 , doi : 10.1053 / j.ajkd.2007.11.039 ( article ).

[4] E. Schweda: Jander / Blasius: Inorganic Chemistry I - Introduction & Qualitative Analysis . 17th edition. Hirzel, 2012, ISBN 978-3-7776-2134-0 , pp. 301 .