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248614

Sigma-Aldrich

Ammonium persulfate

ACS reagent, ≥98.0%

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Synonym(s):
AP, APS, Ammonium peroxodisulfate, Ammonium peroxydisulfate, PER
Linear Formula:
(NH4)2S2O8
CAS Number:
Molecular Weight:
228.20
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

7.9 (vs air)

Assay

≥98.0%

form

chunks or granules
powder or crystals

reaction suitability

reagent type: oxidant

impurities

≤0.005% insolubles
≤0.04 meq/g Titr. acid

ign. residue

≤0.05%

pH

1-2 (25 °C, 228 g/L)

anion traces

Cl- and ClO4-: ≤0.001%

cation traces

Fe: ≤0.001%
Mn: ≤0.5 ppm
heavy metals (as Pb): ≤0.005%

SMILES string

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

InChI

1S/2H3N.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h2*1H3;(H,1,2,3)(H,4,5,6)

InChI key

ROOXNKNUYICQNP-UHFFFAOYSA-N

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This Item
911127215589908932
Ammonium persulfate ACS reagent, ≥98.0%

Sigma-Aldrich

248614

Ammonium persulfate

Essential Grade
Ammonium persulfate free-flowing, Redi-Dri™, reagent grade, 98%

Sigma-Aldrich

911127

Ammonium persulfate

-
Ammonium persulfate reagent grade, 98%

Sigma-Aldrich

215589

Ammonium persulfate

-
Ammonium persulfate free-flowing, Redi-Dri™, ACS reagent, ≥98.0%

Sigma-Aldrich

908932

Ammonium persulfate

-
assay

≥98.0%

assay

98%

assay

98%

assay

≥98.0%

form

chunks or granules, powder or crystals

form

powder

form

crystalline powder

form

powder

impurities

≤0.005% insolubles, ≤0.04 meq/g Titr. acid

impurities

-

impurities

-

impurities

-

pH

1-2 (25 °C, 228 g/L)

pH

1-2 (25 °C, 228 g/L)

pH

1-2 (25 °C, 228 g/L)

pH

-

anion traces

Cl- and ClO4-: ≤0.001%

anion traces

-

anion traces

-

anion traces

-

General description

Ammonium persulfateis a readily available oxidizing agent for various chemicaltransformations, and it is also usedas a bleaching agent in the chemical industry.

Application

Ammonium persulfate can be used as an oxidizing reagent for the solvent-free oxidation of:
  • Primary and secondary alcohols to corresponding carbonyl compounds in an aqueous medium.
  • Thiols to disulfides.
It can also be used as an initiator to initiate copolymerization of acrylonitrile and itaconic acid.
Catalyst for acrylamide gel polymerization.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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