Chemical Name Zinc pyrithione or Bis(2-pyridylthio)zinc 1,1’-dioxide
Chemical Formula C10H8N2O2S2Zn
Molecular Weight 317.68
CAS No. 13463-41-7
Static appearance Lower level is white to yellow precipitation, upper level is
colourless to light yellow clear liquid.
Dynamic appearance White to light yellow emulsion.
Properties Typical Value
Active Content,(%): 48.0-50.0
pH (5% solution) 6.0 – 9.0
Solubility Insoluble in alcohol, surfactant and water.
AXCIDE FK-T is specially formulated as germicide for exterior high durable coatings.
Moreover, it has much potential of applications in production of pesticide, adhesives, carpet,
cosmetics, as antifouling agent in paints, sealants and as anti-dandruff agent in shampoo
preparations. In shampoo formulation, it can reduce the itching, flaking of the scalp and control
hair dropping. AXCIDE FK-T also can be used in ship corrosion-proof paints when it’s
combined with copper hemioxide to prevent shells and marine plankton adhering to ship shell.
It has shown good stability as bactericide and fungicide in the pH range from 4 to 10. Below pH
4.5 the zinc complex dissociates, forming free pyrithione. Above pH 9.5 the zinc complex
hydrolyses to yield ionised pyrithione and zincate species. Both free and ionised pyrithione are