NIST194A

Ammonium dihydrogen phosphate

NIST^® SRM^® 194a

• Synonym(s): Ammonium phosphate monobasic, mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate
• Linear Formula: NH₄H₂PO₄
• CAS Number: 7722-76-1
• Molecular Weight: 115.03
• MDL number: MFCD00003396
• UNSPSC Code: 41116107
• PubChem Substance ID: 329818725
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 100
• packaging: pkg of 90 g
• manufacturer/tradename: NIST^®
• mp: 190 °C (dec.) (lit.)
• application(s): agriculture
• format: neat
• 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

This Standard Reference Material (SRM) is a highly purified and homogeneous lot of crystalline ammonium dihydrogen phosphate (NH4H2PO4). It is intended primarily for use as a working standard in the calibration and standardization of procedures employed in the fertilizer industry for the determination of ammoniacal nitrogen and phosphorus. For more information, please refer to the SDS and COA.

SRM 194A_cert

SRM 194A_SDS

Application

• Improving fourth harmonic generation performance by elevating the operation temperature of ADP crystal: This study highlights the enhancement of fourth harmonic generation in ADP crystals by manipulating their operational temperature, demonstrating a crucial application in optical technologies (Liu et al., 2024).
• Growth and Temperature Properties of the Phase-Matching Angle of 23% Deuterated ADP Crystal: This research explores the phase-matching properties of deuterated ADP crystals, critical for improving the efficiency of nonlinear optical devices (Sun et al., 2024).
• Comparison of hydrogen vacancies in KDP and ADP crystals: This paper uses a combination of density functional theory and experimental approaches to study hydrogen vacancies in ADP crystals, providing insights into the structural properties that influence their optical performance (Sui et al., 2019).
• Structural, spectroscopic, optical, dielectric and mechanical study of pure and l-Proline doped ammonium dihydrogen phosphate single crystals: This comprehensive study addresses how doping ADP crystals with l-proline alters their physical properties, suggesting applications in both optical fields and material science (Hasmuddin et al., 2014).

Other Notes

Certified for the analytes listed below.
Nitrogen (N), Phosphorus (P)

Reference/Informational value is provided for the following analytes.
Aluminum (Al), Fluorine (F), Neodymium (Nd), Sulfur (S), Antimony (Sb), Gadolinium (Gd), Nickel (Ni), Tantalum (Ta), Arsenic (As), Gallium (Ga), Niobium (Nb), Tellurium (Te), Barium (Ba), Germanium (Ge), Osmium (Os), Terbium (Tb), Beryllium (Be), Gold (Au), Palladium (Pd), Thallium (Th), Bismuth (Bi), Hafnium (Hf), Latinum (La), Thorium (Th), Boron (B), Holmium (Ho), Potassium (K), Thulium (Tm),Bromine (Br), Indium (In), Praseodymium (Pr), Tin (Sn), Cadmium (Cd), Iodine (I), Rhenium (Re), Titanium (Ti), Calcium (Ca), Iridium (Ir) Rhodium (Rh), Tungsten (W), Cerium (Ce), Iron (Fe) Rubidium (Rb), Uranium (U), Cesium (Ce), Lanthanum (La), Ruthenium (Ru), Vanadium (V), Chlorine (Cl), Lead (Pb), Samarium (Sm), Ytterbium (Yb), Chromium (Cr), Lithium (Li), Scandium (Sc), Yttrium (Yt), Cobalt (Co), Lutetium (Lu), Selenium (Se), Zinc (Zn), Copper (Cu), Magnesium (Mg), Silicon (Si), Zirconium (Zr), Dysprosium (Dy), Manganese (Mn), Silver (Ag), Erbium (Er) Mercury (Hg), Sodium (Na), Europium (Eu), Molybdenum (Mo), Strontium (Sr)

See certificate for values and more details at nist.gov/SRM.

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable