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1.01126

Supelco

Ammonium dihydrogen phosphate

for analysis EMSURE® ACS,Reag. Ph Eur

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Synonym(s):
Ammonium dihydrogen phosphate, Ammonium biphosphate, Ammonium phosphate monobasic, Primary ammonium phosphate, Monoammonium orthophosphate
Linear Formula:
(NH4)H2PO4
CAS Number:
Molecular Weight:
115.03
MDL number:
EC Index Number:
231-764-5

grade

ACS reagent

Quality Level

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 (SO42-): ≤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

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This Item
AX1350-7884311.01124
Ammonium phosphate monobasic analytical standard, for nitrogen determination according to Kjeldahl method, ≥99.5%

Supelco

88431

Ammonium phosphate monobasic

Ammonium dihydrogen phosphate cryst. extra pure

SAFC

1.01124

Ammonium dihydrogen phosphate

vapor pressure

0.066 hPa ( 125 °C)

vapor pressure

0.066 hPa ( 125 °C)

vapor pressure

-

vapor pressure

0.066 hPa ( 125 °C)

assay

≥99.0% (acidimetric)

assay

≥99.0%

assay

≥99.5% (T)

assay

≥99.0% (acidimetric)

form

solid

form

solid

form

-

form

solid

impurities

≤0.005% Insoluble matter

impurities

≤0.005% Insoluble matter

impurities

12.18%±0.10% total Kjeldahl nitrogen

impurities

-

pH

3.8-4.4 (20 °C, 50 g/L in H2O)

pH

3.8-4.4 (20 °C, 50 g/L in H2O)

pH

3.8-4.4 (25 °C, 50 mg/mL in H2O)

pH

3.8-4.4 (20 °C, 50 g/L in H2O)

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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