Ammonium hydroxide solution

agency

USP/NF
reag. ISO
reag. Ph. Eur.

Quality Level

200

description

related substances ≤ 2 ppm (as pyridine)

grade

puriss. p.a.

form

liquid

expl. lim.

27 %

concentration

~25% NH₃

impurities

readily oxidisable substances, in accordance
≤0.0001% heavy metals (as Pb)
≤0.0005% KMnO₄ red. matter (as O)
≤0.0018% non-volatile matter

evapn. residue

≤0.0018%

pH

11.7 (20 °C)

density

0.892-0.910 g/mL at 20 °C
0.9 g/mL at 25 °C (lit.)

anion traces

carbonate (CO₃^2-): ≤60 ppm
carbonate (as CO₂): ≤10 ppm
chloride (Cl^-): ≤0.5 ppm
phosphate (PO₄^3-): ≤0.5 ppm
silicate (as SiO₂): ≤10 ppm
sulfate (SO₄^2-): ≤2 ppm
sulfide (S^2-): ≤0.2 ppm

cation traces

Ag: ≤0.02 ppm
Al: ≤0.5 ppm
Au: ≤0.1 ppm
Ba: ≤0.05 ppm
Bi: ≤0.1 ppm
Ca: ≤1 ppm
Cd: ≤0.05 ppm
Co: ≤0.05 ppm
Cr: ≤0.05 ppm
Cu: ≤0.1 ppm
Fe: ≤0.1 ppm
Ga: ≤0.02 ppm
In: ≤0.02 ppm
K: ≤0.5 ppm
Li: ≤0.02 ppm
Mg: ≤0.1 ppm
Mn: ≤0.05 ppm
Mo: ≤0.05 ppm
Na: ≤1 ppm
Ni: ≤0.05 ppm
Pb: ≤0.05 ppm
Pt: ≤0.1 ppm
Sn: ≤0.1 ppm
Sr: ≤0.2 ppm
Ti: ≤0.1 ppm
Tl: ≤0.05 ppm
Zn: ≤0.1 ppm

SMILES string

[NH4+].[OH-]

suitability

complies for appearance of solution

storage temp.

2-8°C

InChI

1S/H3N.H2O/h1H3;1H2

InChI key

VHUUQVKOLVNVRT-UHFFFAOYSA-N