Optical Brightener

Optical brighteners are hydrophilic water-soluble compounds added to liquid and powder laundry detergents to make clothing appear whiter and brighter, and thus cleaner.

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HS Code: 32042

C.A.S number: 16090-02-1

Haz class: N/A

Technical Specifications

PARAMETERS SPECIFICATIONS
Chemical composition
Stilbene Disulfonic acid derivative
Molecular formula
C40H38N12O8S2Na2
Molecular weight
924
Physical Appearance
Light Yellow to Off-White Free Flowing granules
Chemical composition
Disodium 4,4′-bis[(4-anilino-6-morpholino-1, 3, 5- triazin-2-yl) amino] stilbene-2, 2′-disulphonate
Colour Index number
C.I. Fluorescent Brightener 71
CAS Number
16090-02-1
Bulk density
400-500 grams/Liter
Affinity
High
Insoluble Substance
0.5% max
E-Value
543.2 – 576.8
pH of 0.5 % Sol at 60ºC
9.0 – 10.5
Solubility (5 gm/L) at 98ºC
Clear to Slight Hazy Solution
Stability with alkaline peroxide
Good
Stability with Hydrosulphite
Good
Stability with Alkali
Good
Stability with Hard water
Good