Fluorescent whitening agents stilbene derivatives

Table 1. Symmetrical Stilbene Derivatives used as Fluorescent Whitening Agents...

Uchiyama [11] has given details of a procedure he developed for the isolation and determination of down to 0.2mg kg 1 of fluorescent whitening agents in extracts of bottom deposits. The fluorescent whitening agents were sodium salts of a sulphonated stilbene derivative and this was measured by fluorescence (excitation 370nm, emission 405nm) with the use of tctra-w-butyl ammonium hydroxide. 

Fluorescent whitening agents (LD) Create a brightening effect Substantivity on fabrics Compatibility with other ingredients like bleaches Bistriazinyl derivatives of 4,4 -diamino-stilbene-2,2 -disulfonic acid 0.1-0.5%... 

Fluorescent whitening agents and optical brighteners Attach to fabrics to enhance brightness in bright light Stilbene disulfonates Coumarin derivatives ... 

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