Grand Chemical
Optical Brightener BBU
Optical Brightener BBU is supplied by Shandong Grand Chemical for cotton, viscose, paper pulp, sizing, coating. C.I. 220. CAS 16740-24-9. Stilbene derivative. Use the specification table below; figures that are not printed on the source product page are marked TBC or omitted.
cottonviscosepaper pulpsizingcoating
Specification
| C.I. No. | 220 |
|---|---|
| CAS | 16740-24-9 |
| Intensity | 100 ± 3 |
| Whiteness | 100 ± 2 |
| Moisture | ≤5% |
| Water insolubles | ≤0.5% |
| Fineness | 250 µm ≤10% |
| Appearance | Light yellow powder |
| Ionicity | Anionic |
| Shade | Bluish |
| Dosage (source) | 0.1–0.5%; dip 60–100 °C for 20–40 min; bath 1:20–30. |
| Packing | 25 kg cardboard drum or kraft |
| Synonyms on source page | Leucophor U, Blankophor BBU |
What this grade is for
- Cotton, viscose and paper. CAS printed on the spec field is 16740-24-9.
Questions we actually get
What is BBU used for?
Optical Brightener BBU is listed for cotton, viscose, paper pulp, sizing, coating.
Do you publish a price?
No. The live catalog does not list prices. Ask for a quote with your polymer or fiber, process temperature and monthly volume.
Can I get TDS / COA / SDS?
Yes — request the current document set by WhatsApp or email. This site does not host downloadable PDFs because the source site does not publish a document library.
