|Jmol-3D images||Image 1|
|Molar mass||238.10 g/mol|
180 °C decomp.
|Solubility in water||55.6 g/100 ml (20 °C)|
|EU Index||Not listed|
|R-phrases||R8 R20 R22 R36 R37 R38|
|S-phrases||S17 S26 S36|
|Other anions||Sodium dithionite
|Other cations||Potassium persulfate|
| (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Sodium persulfate (Na2S2O8) is a chemical compound. It is a strong oxidizer. It is a severe irritant of the skin, eyes, and respiratory system. It is almost non-hygroscopic and has particularly good ability to be stored for long time. It is easy and safe to handle. It is not combustible, but releases oxygen easily and assists combustion of other materials.
It is used as a bleach, both standalone (particularly in hair cosmetics) and as a detergent component. It is a replacement for ammonium persulfate in etching mixtures for zinc and printed circuit boards, and is used for pickling of copper and some other metals. It is a source of free radicals, making it useful as a radical initiator for emulsion polymerization reactions and for accelerated curing of low formaldehyde adhesives. It is also used as a soil conditioner and in manufacture of dyestuffs, modification of starch, bleach activator, desizing agent for oxidative desizing, etc.
Conditions/substances to avoid mixing persulfates with are: moisture, heat, flame, ignition sources, shock, friction, reducing agents, organic material, sodium peroxide, water, aluminium, and powdered metals.
The sulfate radical formed in situ has a standard electrode potential of 2.7 V.