Potassium persulphate, 99.99% trace metals ba… 7727-21-1

Name: Potassium persulphate, 99.99% trace metals basis
Brand: Vaqora Chemicals
SKU: VQ-000944

About Potassium persulphate, 99.99% trace metals basis

Potassium persulphate is a synthetic reagent carrying the CAS registry number 7727-21-1 with a typical assay of 99.99%. Formula K2O8S2, molecular weight 270.33 g/mol. Systematically, it is named dipotassium. Sulfonatooxy sulfate. Common synonyms include Potassium peroxodisulfate and Anthion.

The material typically appears as colourless to white to off-white powder or crystals. Literature values give a melting point of 100 °C (dec.). Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for organic synthesis, reaction development, medicinal chemistry and polymer and resin production. Typical end-use sectors are academic and industrial research and polymers and plastics.

We offer Potassium persulphate in 5 g, 25 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Organic synthesis
Reaction development
Medicinal chemistry
Polymer & resin production

Industries

Specifications & identifiers

Chemical identifiers
Product name	Potassium persulphate, 99.99% trace metals basis
Catalogue No.	VQ-000944
CAS Number	7727-21-1
IUPAC name	dipotassium;sulfonatooxy sulfate
Molecular formula	K₂O₈S₂
Molecular weight	270.33 g/mol
Exact mass	269.8309
Purity / assay	99.99%
HSN code	28334000
InChIKey	USHAGKDGDHPEEY-UHFFFAOYSA-L
SMILES	[O-]S(=O)(=O)OOS(=O)(=O)[O-].[K+].[K+]
PubChem CID	24412

Physical properties
Physical form	Crystalline
Appearance	Colourless to white to off-white powder or crystals
Melting point	100 °C (dec.)
H-bond donors / acceptors	0 / 8
TPSA	150 Å²
UN number	UN 1492
Synonyms	Potassium peroxodisulfate, Anthion, Dipotassium persulfate, Potassium Persulphate, Potassium peroxydisulfate, Potassium peroxydisulphate, Dipotassium persulfate, Dipotassium peroxydisulfate, Peroxydisulfuric acid, dipotassium salt, Potassium peroxydisulfate (K2(S2O8)), Peroxydisulfuric acid (((HO)S(O)2)2O2), dipotassium salt, K2S2O8, Dipotassium peroxodisulphate

Safety & hazard information (GHS)

Oxidiser

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H272May intensify fire, oxidizer
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation

Precautionary statements: P210, P220, P233, P260, P261, P264, P264 + P265, P270, P271, P272, P280, P284, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P342 + P316, P362 + P364

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7727-21-1

Extra Pure

Potassium persulphate, 98%

CAS: 7727-21-1
Formula: K₂O₈S₂
MW: 270.33 g/mol

VQ-000943

EP

Potassium persulphate, EP

CAS: 7727-21-1
Formula: K₂O₈S₂
MW: 270.33 g/mol

VQ-047238

AR

Potassium persulphate, GR 98%+

CAS: 7727-21-1
Formula: K₂O₈S₂
MW: 270.33 g/mol

VQ-000945

Frequently asked questions

What is the CAS number of Potassium persulphate, 99.99% trace metals basis?

The CAS Registry Number of Potassium persulphate, 99.99% trace metals basis is 7727-21-1. It is also known as Potassium peroxodisulfate, Anthion, Dipotassium persulfate, Potassium Persulphate.

What is the molecular formula and molecular weight of Potassium persulphate, 99.99% trace metals basis?

Potassium persulphate, 99.99% trace metals basis has the molecular formula K2O8S2 and a molecular weight of 270.33 g/mol.

Which grade and pack sizes of Potassium persulphate, 99.99% trace metals basis can I order?

We supply Potassium persulphate, 99.99% trace metals basis in (99.99%) grade, in 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Potassium persulphate, 99.99% trace metals basis?

Yes. Every lot of Potassium persulphate, 99.99% trace metals basis is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Potassium persulphate, 99.99% trace metals basis be shipped internationally?

Yes. Potassium persulphate, 99.99% trace metals basis is classified as hazardous (UN 1492), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.