Optical Brightener Agent OB (CAS NO:7128-64-5)

Product Description

~[Chemical name] 2,5'-Bis[*-(*-tert-butyl benzoxazolyl*2'-)thiophene

[Molecular weight]  **0

[Structural formula]

 

[Formula] C*6H*6N2O2S

[Appearance] slight greenish yellow powder

[Structure] a compound of benzoxazole type

[Melting point] **0℃***2℃

[Solubility] hardly soluble in water,but soluble in paraffins,mineral oils and ordinary organic solvents.

[Specifications]

      ITEM                 INDICES

APPEARANCE       Slight greenish yellow powder

PURITY(HPLC)       ≧*9%

MELTING POINT        **0℃***2℃

FINENESS       ≧**0目

[Applications]

OB can be used for whitening thermoplastic plastics,PVC, PS, PE, PP, ABS,Acetate fier, paint,coating , printing ink ,etc..It can be added at any stage in prodess for process for shitening the polymers and can give the finished products a bright bluish white glaze.

[Directions for use and dosage]

 The dosage shoule be 0.***0.*5% on weight of plastic.Put whitening agent OB into plastic pellets,mix the mixture thoroughly and then carry out shaping.Fluorescent whitening agent OB is similar to Uvitex OB made in foreign country.

[Package]

 Paper drum lined with  plastics bags,net in *5kg.

[Handling&safety]

OB can be handled in accordance with the usual rules for industral chemicals.Avoid dust formation and ignition sources. Stored indry and cool place.