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1.01217

Ammonium sulfate

Name: Ammonium sulfate
Brand: MM

for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

Synonym(s):

Mascagnite

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About This Item

Linear Formula:

(NH₄)₂SO₄

CAS Number:

7783-20-2

Molecular Weight:

132.14

NACRES:

NA.21

EC Index Number:

231-984-1

UNSPSC Code:

12352301

MDL number:

MFCD00003391

Assay:

≥99.5% (alkalimetric)

Grade:

ACS reagent

Form:

solid

Solubility:

754-764 g/L

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Properties

grade

ACS reagent

Quality Level

300

agency

reag. ISO, reag. Ph. Eur.

vapor pressure

<1 Pa ( 25 °C)

product line

EMSURE^®

assay

≥99.5% (alkalimetric)

form

solid

potency

2840 mg/kg LD₅₀, oral (Rat)

impurities

≤0.001% Insoluble matter

ign. residue

≤0.005% (as sulfate)

loss

≤0.1% loss on drying, 105 °C

pH

5 (100 g/L in H₂O)

mp

>280 °C (dec.) (lit.)

solubility

754-764 g/L

density

1.77 g/mL at 25 °C (lit.)

bulk density

850 kg/m³

anion traces

chloride (Cl^-): ≤0.0003%, nitrate (NO₃^-): ≤0.001%, phosphate (PO₄^3-): ≤0.0005%

cation traces

Al: ≤0.000075%, As: ≤0.00002%, Ca: ≤0.001%, Cd: ≤0.0001%, Cr: ≤0.000075%, Cu: ≤0.0002%, Fe: ≤0.0002%, Mg: ≤0.0005%, Pb: ≤0.0002%, Zn: ≤0.0001%, heavy metals: ≤0.0005%, heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

SMILES string

N.N.OS(O)(=O)=O

InChI

1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChI key

BFNBIHQBYMNNAN-UHFFFAOYSA-N

Description

Application

Ammonium sulfate is a high-purity chemical reagent designed for precise analytical applications. It meets the stringent standards of ACS, ISO, and Reag. Ph Eur, ensuring its suitability for high-precision laboratory work.

Analysis Note

Assay (alkalimetric): ≥ 99.5 %
Insoluble matter: ≤ 0.001 %
pH-value (5 %; water, 25 °C): 5.0 - 6.0
Chloride (Cl): ≤ 0.0003 %
Nitrate (NO₃): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.0005 %
Heavy metals (ACS): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.000075 %
As (Arsenic): ≤ 0.00002 %
Ca (Calcium): ≤ 0.001 %
Cd (Cadmium): ≤ 0.0001 %
Cr (Chromium): ≤ 0.000075 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0002 %
Mg (Magnesium): ≤ 0.0005 %
Pb (Lead): ≤ 0.0002 %
Zn (Zinc): ≤ 0.0001 %
Residue on ignition (as sulfate): ≤ 0.005 %
Loss on Drying (105 °C): ≤ 0.1 %
Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

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

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c