1.01440

Ammonium dihydrogen phosphate

99.99 Suprapur^®

• Synonym(s): Ammonium dihydrogen phosphate, Ammonium biphosphate, Ammonium phosphate monobasic, Primary ammonium phosphate, Monoammonium orthophosphate
• Linear Formula: (NH₄)H₂PO₄
• CAS Number: 7722-76-1
• Molecular Weight: 115.03
• MDL number: MFCD00003396
• UNSPSC Code: 12352301
• EC Index Number: 231-764-5
• NACRES: NB.21

Properties

• grade: for inorganic trace analysis
• Quality Level: 100
• vapor pressure: 0.066 hPa ( 125 °C)
• assay: 99.99%
• form: solid
• potency: 5750 mg/kg LD₅₀, oral (Rat); >7940 mg/kg LD₅₀, skin (Rabbit)
• storage condition: (Tightly closed. Dry.)
• technique(s): HPLC: suitable using : suitable
• color: colorless
• pH: 3.8-4.4 (20 °C, 50 g/L in H₂O)
• mp: 190 °C
• solubility: 368 g/L
• density: 1.80 g/cm³ at 20 °C
• bulk density: 800‑1100 kg/m³
• anion traces: nitrate (NO₃^-): ≤5 ppm; sulfate (SO₄^2-): ≤50 ppm
• cation traces: Ba: ≤2.0 ppm; Ca: ≤0.10 ppm; Cd: ≤0.010 ppm; Ce: ≤0.01 ppm; Co: ≤0.010 ppm; Cr: ≤0.010 ppm; Cs: ≤50 ppm; Cu: ≤0.010 ppm; Fe: ≤0.10 ppm; Hg: ≤0.05 ppm; K: ≤10 ppm; La: ≤0.010 ppm; Li: ≤1.0 ppm; Mg: ≤0.10 ppm; Mn: ≤-0.010 ppm; Na: ≤10 ppm; Ni: ≤0.010 ppm; Pb: ≤0.010 ppm; Rb: ≤10 ppm; Sm: ≤0.010 ppm; Sr: ≤0.10 ppm; Tl: ≤0.01 ppm; Y: ≤0.010 ppm; Yb: ≤0.010 ppm; Zn: ≤0.010 ppm
• storage temp.: 2-30°C
• SMILES string: [NH4+].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

Application

• Development and Characterization of Bio-Based Formaldehyde Free Sucrose-Based Adhesive for Fabrication of Plywood.: This study presents a bio-based adhesive using sucrose and ammonium dihydrogen phosphate, offering a formaldehyde-free solution for plywood fabrication, enhancing environmental sustainability (Liu et al., 2024).


• Significantly Tunable Foaming Behavior of Blowing Agent for the Polyethylene Foam Resin with a Unique Designed Blowing Agent System.: This paper investigates a new blowing agent system incorporating ammonium dihydrogen phosphate, which allows significant tunability in the foaming behavior of polyethylene foam resin, highlighting applications in material science (Chen & Huang, 2024).


• Facile preparation of high-performance plywood adhesive from gelatinized corn starch crosslinked with ammonium dihydrogen phosphate.: This article details the preparation of a high-performance plywood adhesive using gelatinized corn starch crosslinked with ammonium dihydrogen phosphate, offering an eco-friendly alternative to traditional adhesives (Jia et al., 2024).

Analysis Note

Purity (metallic): ≥ 99.99 %
Assay (acidimetric): ≥ 99 %
Nitrate (NO₃): ≤ 5 ppm
Sulfate (SO₄): ≤ 50 ppm
As (Arsenic): ≤ 0.2 ppm
Ba (Barium): ≤ 2.0 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.010 ppm
Ce (Cerium): ≤ 0.01 ppm
Co (Cobalt): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.010 ppm
Cs (Cesium): ≤ 50 ppm
Cu (Copper): ≤ 0.010 ppm
Fe (Iron): ≤ 0.10 ppm
Hg (Mercury): ≤ 0.05 ppm
K (Potassium): ≤ 10 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 1.0 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.010 ppm
Na (Sodium): ≤ 10 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Rb (Rubidium): ≤ 10 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.010 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable