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optical brightener BBU

optical brightener BBU

optical brightener BBU Good water solubility, dissolve in 3-5 times of boiling water by volume, optical brightener BBU 300g can be dissolved per liter of boiling water, 150g can be dissolved per liter of cold water

Product Details

optical brightener BBU

other name:optical brightener 220,fluorescent brightenerBBU,fluorescent whitenerBBU

CAS NO.:16470-24-9

Molecular Formula:C40H40N12Na4O16S4

Molecular Weight:1165.04

OBA manufacturer:Shijiazhuang Taicang New Materials Co., Ltd.

Specification:

Items

Index of quality

Appearance

Light yellow uniform powder

Fluorescent intensity(equivalent to standard E370)

100±3

Whiteness(Difference with the standard)

≥-3

Moisture

≤5%

Insoluble impurity in water

≤0.5%

Fineness(Residue on 250µm sieve)

≤10%

Characteristics and advantages:

1、 optical brightener BBU Good water solubility, dissolve in 3-5 times of boiling water by volume, optical brightener BBU 300g can be dissolved per liter of boiling water, 150 g can be dissolved per liter of cold water;

2、 optical brightener BBU is insensitive to hard water and the whitening effect will not be affected by Ca+、Mg2+;

3、 Resistant to peroxide bleach, including reductant(sodium hydrosulfite)bleaching agent;

4、 Average acid resistance, PH>7 is the optimum whitening condition;

5、 Anionic, blue light.

Application fields:

1、 optical brightener BBU Used for whitening of cotton fiber and mucilage glue fiber;

2、 optical brightener BBU Suitable for white discharge printing pulp;

3、 optical brightener BBU Whitening during paper pulp;

4、 optical brightener BBU Whitening during surface sizing procedure;

5、 optical brightener BBU Whitening during coating procedure.

Method:

Dip 60-100 ℃ temperature, residence time of 20-40 minutes, bath ratio: 1:20-30, dosage: 0.1-0.5%.

Package:25KG cardboard drum

Storage period:two years



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