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248614

Sigma-Aldrich

Ammonium persulfate

ACS reagent, ≥98.0%

Synonym(s):

AP, APS, Ammonium peroxodisulfate, Ammonium peroxydisulfate, PER

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About This Item

Linear Formula:
(NH4)2S2O8
CAS Number:
Molecular Weight:
228.20
EC Number:
MDL number:
UNSPSC Code:
12352300
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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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.

signalword

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

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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