Formula: C40H38N12O8S2Na2
Molecular weight: 924.93(As International relative Atom Mass 1997)
Max uv absorption spectrum 350nm
Specification：
Appearance | white or light yellow powder |
Strength | 100 |
Whiteness ≤ | -3.0 |
Moisture ≤ | 5% |
Water insoluble substances ≤ | 0.5% |
Fineness (425um-sieve residue) ≤ | 5% |
Properties：
Fluorescent Whitening Agent 33 is a derivative of the diphenylethylene bistriazine type and similar to the foreign brands such as Uvitex SDM, Blankophor MBBH, and Tinopal 33. The product is a while crystalline powder and in the nature of anion, and has a greenish blue tone. Its resistance to chlorine-bleaching is better than Whitening Agent VBL and its whitening effect is distinctively stronger than the whitening agents of ordinary diphenylethylene bistriazine type.
Applications：
The product is suitable for whitening cotton fabrics, nylon fabrics and detergents, When compounded into detergents and soaps, it can make them look spotless white, crystal clear, smooth and thus more pleasant to eye.
Package：
Packing in 25kg fiber drum or according to the requirement of the customers.
Storage：
This product shall be kept well closed in a cool, dry, ventilated place, Avoid moisture and direct sunlight.
