| Customization: | Available |
|---|---|
| CAS No.: | 27344-41-8 |
| Formula: | C28H20S2O6Na2 |
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Appearance: tangerine to red transparent liquid
Characteristic: Bluish tone; Common affinity to cellulosic fiber; Stable to oxide, hypochlorite, reducing bleach; Resistant to alkali, hard water, but medium in acid
| Index | Standard |
| Fluorescent intensity(equal to standard) | 34~36 |
| Max UV absorption by nm | 350 |
1. Whitening of surface sizing, coating of paper sheets, paper, also whitening of cotton, viscose
2. Good compatibility with resin finishing agent
| Products | Dosage |
| Paper-making industry (absolute dry pulp) | 0.05~1.2 % |
| Surface sizing with starch, CMC, PVA | 0.5~10 g/L |
| oating with PVA, CMC, starch (compared to weight of coating material) | 0.1~1.4 % |
1. There are more than 5000 brighteners on the world market, they are actually different brand names and numbers from different producers/ distributors for less than 400 chemical compounds. On China's market, the main names/ types are: BBU, CXT, BA-L, BA, APC, DMS(AMS), MST, 210, VBL, BBU, DT, VBU, BA, BC, DMS, FB-351, CBS-L, BA-L, 31#, CBW, 5BM, OB-1, APC, VBL, CXT, BBC, BST, BC-100, ER, ERI, BBU, CBS-L, PS(PF), OB, KB, OB-1, KCB, KSN, DBH-1, APH, APB-L, ER, KCB, KSN, PF, NFW, HPE and etc.
2. We normally list 24 months as the shelf life in our COA, the real shelf life can be slightly longer than 24 months if it's stocked in good condition (bags are sealed enough, away from direct sun-light, moisture and other incompatible chemical materials), but it's still suggested to avoid long time storage
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