Merck
All Photos(2)

1.01217

Supelco

Ammonium sulfate

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

Synonym(s):
Mascagnite
Linear Formula:
(NH4)2SO4
CAS Number:
Molecular Weight:
132.14
MDL number:
EC Index Number:
231-984-1

grade

ACS reagent

Quality Level

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 (PO43-): ≤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

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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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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