Optical brightening agent ER-II(O/P) CAS: 13001-38-2 C.I.No:199

Bluish color shade with high whitening brightening effect and excellent fastness to sublimation.

Appearance:slight yellow powder

Melting Point:183~185Degree C

Purity:99.5%Min

Maximum UV Absorption Spectrum:369nm

Mainly be used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.