FLUORESCENT BRIGHTENER PF

Chemical name: 2,2'-vinylenebis[5-methylbenzoxazole]
Structural formula:
C.I. NO.: Fluorescent brightener 135
CAS NO.:1041-00-5
EC NO.:213-866-1
Molecular formula: C18H14N2O2
Molecular weight: 290
Properties: The product is a light yellow crystal powder.The melting point is 182-188°C,maximum absorption wave length is 363nm,fluorescent shades with reddish blue.It has good fastness and light fastness.It is insoluble in water,dissolved in the organic solvent of benzene,alcohol esters,ethers,etc.Acid resistance,alkali resistance,stable chemical properties,neutral and of nonionic type.
Technical conditions:
Appearance: light yellow crystal power
Chromatic light: bright reddish blue(similar to the standard product)
Melting point: 182-188°C
Content of solid: ≥99.5%
Fineness : :through 100 meshes
Use: It is mainly used in whitening and brightening of PVC,PS,PP,polyester film ,high or low pressure ethylene,ABS,organic glass,name card ,high quality paper etc.
Package：It is packed in double corrugated carton lined with plastic bag.The net weight of each box is10 kg .Or packed according to the requirement of the user.