Sodium Persulphate 99% Electronic Grade

Sodium Persulphate 99% Electronic Grade (CAS 7775-27-1, molecular formula Na2S2O8) is a process chemical for electronics and metal finishing, where trace metal content and particle contamination matter as much as headline assay. China Chemicals supplies it at 99% min in pack sizes from 1 kg through to 500 kg Pallet, so laboratory trial quantities and full production volumes can be sourced from the same specification.

It is also traded as SPS, Sodium Peroxydisulphate, Disodium Persulfate. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.

Typical applications

PCB copper etching where ammonia-free chemistry is required
Soil and groundwater remediation by chemical oxidation
Emulsion polymerisation initiator
Metal surface cleaning and passivation
Accelerator in accelerated concrete curing

Technical specification

Chemical name	Sodium Persulphate 99% Electronic Grade
Synonyms	SPS, Sodium Peroxydisulphate, Disodium Persulfate
CAS number	7775-27-1
Molecular formula	Na2S2O8
Appearance	White free-flowing crystals
Assay	99.0% min
Active oxygen	6.6% min
Chloride	0.001% max
Iron (Fe)	0.0005% max
Moisture	0.1% max
pH (1% solution)	3.0 – 4.5

Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.

Packaging and supply

Available in 1 kg, 5 kg, 25 kg Drum, 500 kg Pallet. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.

Handling and safety

Transport classification: UN1505 · Oxidiser, Class 5.1. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.

Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.