Optical brightener APC

CAS NO.: 16470-24-9

C.I. NO.: 220

Send Inquiry
Description

Description

Optical brightener APC

 

CAS NO.: 16470-24-9

C.I. NO.: 220

 

Appearance: Tangerine to red transparent liquid

Fluorescent intensity: 35±1 (equal to standard sample)

Max. UV absorption wavelength: 350nm.

Shade: Bluish tone.

 

Characteristic:

Common affinity to cellulosic fiber; stable to oxide, hypochlorite, reducing bleach.

Resistant to alkali, hard water, but medium in acid.

 

Application and recommended dosage:

Whitening of surface sizing, coating of paper sheets, paper, also whitening of cotton, viscose.

  1. Paper making: (absolute dry pulp): 0.05-1.2%;
  2. Surface sizing with starch, CMC, PVA: 0.5-10g/L;
  3. Coating with PVA, CMC, starch: 0.1-1.4% (compared to weight of coating material).

 

Package:

10kg per plastic barrel, 2 barrels per carton;

25kg per barrel packed independently or as per client’s request.