1.01126

Ammonium dihydrogen phosphate

for analysis EMSURE^® ACS,Reag. Ph Eur

• 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
• EC Index Number: 231-764-5

Properties

• grade: ACS reagent
• Quality Level: 300
• Agency: reag. Ph. Eur.
• vapor pressure: 0.066 hPa ( 125 °C)
• product line: EMSURE^®
• assay: ≥99.0% (acidimetric)
• form: solid
• potency: 5750 mg/kg LD₅₀, oral (Rat); >7940 mg/kg LD₅₀, skin (Rabbit)
• impurities: ≤0.005% Insoluble matter
• pH: 3.8-4.4 (20 °C, 50 g/L in H₂O)
• mp: 190 °C
• density: 1.80 g/cm³ at 20 °C
• bulk density: 800‑1100 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Ca: ≤0.001%; Fe: ≤0.001%; K: ≤0.005%; Mg: ≤0.0005%; Na: ≤0.005%; heavy metals (as Pb): ≤0.0005%
• storage temp.: 2-30°C
• InChI: 1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
• InChI key: LFVGISIMTYGQHF-UHFFFAOYSA-N

Description

Packaging

500 , 500 g

5, 50 kg in Fibre carton

Linkage

Replaces: AX1350; AX1350-1; AX1350-20

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water, 25 °C): 3.8 - 4.4
pH-value (2.3%; water): about 4.2
Chloride (Cl): ≤ 0.0005 %
Nitrate (NO₃): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
corresponds to ACS,Reag. Ph Eur

Legal Information

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

Safety Information

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