Fluorescent brightenerAPC
C.I.220 CAS：16470-24-9
Structural formula:
Molecular formula:C40H40N12THE16S4That4
Relative molecular weight:1165.12 (according to1997International Relative Atomic Mass)
Maximum UV absorption wavelength:350nm
Implementation standards: HG/T 3727-2003
Quality indicators:
project | Indicators |
1) Appearance | Amber transparent liquid |
2) Fluorescence intensity(Equivalent to standard),point | 35 |
3) WhitenessWCIE(Difference in whiteness from the standard product: whiteness of the sample % orWCEStandard whiteness % orWCE | ≥0 |
4) Viscosity(25℃)，mPa·s | ≤ 50 |
5) pHvalue | 8-10 |
6) density,g/cm3 | 1.1-1.2 |
7) Ionicity | Anions |
Performance characteristics:
1, easy to use, miscible with water in any proportion, suitable for automatic continuous addition and metering.
2, has good acid resistance, even at lowPHEven at low values, it has excellent whitening effect.
3This product adopts advanced nanofiltration technology to make its salt content lower and has good storage stability at room temperature.
4, compared with similar products, it has comparable light fastness and acid and alkali fastness.
5,exist0The product remains stable above ℃.-3It may freeze below ℃, but it will melt after heating and will not affect the use effect.
Scope of application:
1, perform fluorescent whitening in pulp.
2, perform fluorescent whitening during surface sizing.
3, perform fluorescent whitening during the coating process.
Directions:
1, can be added directly into the slurry, conventional dosage:0.05-1.2%(Absolutely dry pulp).
2, in surface sizing with commonly used starch,CMC、PVAUse together to achieve better whitening effect, conventional dosage:0.5-10g/L。
3, During the coating process, it can be added at any position.PVA、CMCBetter effect will be achieved when using , starch together. Normal dosage:0.1-1.4%(Weight of coating)。
Packaging and storage:
1000 kg、200 kgor50 kgPlastic barrel packaging, special packaging can be provided according to customer needs. It should be stored in a cool, dry and ventilated warehouse, and the storage period is six months.
Note:
12. The information of this product is for reference, research and identification only. Our company does not assume any responsibility or patent dispute caused thereby.
2If you have any technical or usage questions, please contact our company in time.
