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467782 Sigma-Aldrich

Ammonium phosphate monobasic

≥99.99% trace metals basis

Synonym: mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate

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Properties

Related Categories Ammonium Salts, Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials,
Quality Level   100
grade   for inorganic trace analysis
assay   ≥99.99% trace metals basis
impurities   ≤0.005% insolubles
  <100 ppm total metallic impurities
pH range   3.8 - 4.4
mp   190 °C (dec.) (lit.)
solubility   water: soluble(lit.)
anion traces   chloride (Cl-): ≤5 ppm
  nitrate (NO3-): ≤0.001%
  sulfate (SO42-): ≤0.01%
cation traces   Ca: 0.001%
  Fe: ≤0.001%
  K: ≤0.005%
  Mg: 0.0005%
  Na: ≤0.005%
  heavy metals: ≤5 ppm
SMILES string   N.OP(O)(O)=O
InChI   1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
InChI key   LFVGISIMTYGQHF-UHFFFAOYSA-N

Description

General description

Ammonium phosphate monobasic (APM) is an inorganic salt widely used in fertilizer, baking powder and yeast production. It is also employed as an agent to control pH of a solution, in corrosion inhibition. APM can be prepared by reacting phosphoric acid with anhydrous ammonia maintaining the pH below 5.8. The change in some of the physical characteristics on its addition to a high carbonate containing unfired and fired illitic shale has been studied.

Application

Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2.

Packaging

50, 250 g in poly bottle

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Single- & multi-channel pipettes from BRAND
Protocols & Articles
Peer-Reviewed Papers
15

References

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