High-Quality Casein (CAS No. 9000-71-9)
Fluorescent Brightener 28 (Calcofluor White M2R, Tinopal UNPA-GX) is an anionic fluorescent whitening agent with excellent optical properties and biological staining capabilities. This technical-grade product serves diverse industrial and research applications where enhanced brightness and fluorescence detection are required.
Specfition
| Item | Specification |
| Color | Milky white to milky yellow |
| Taste and Odor | Characteristic taste and odor of the product, no off‑odor |
| State | Dry uniform powder, with a small amount of dark yellow particles permitted, no foreign matters |
| Protein (on dry basis) / (g/100g) | ≥ 90.00% |
| Casein (on dry basis) / (g/100g) | ≥ 95.00% |
| Moisture / (g/100g) | ≤ 12.00% |
| Ash / % | ≤ 4.80% |
| Fat / (g/100g) | ≤ 2.00% |
| Free acid (0.1 mol/L NaOH) / (mL/g) | ≤ 0.27 |
| Viscosity | 700 ~ 3500 |
| Total arsenic (as As) / (mg/kg) | ≤ 0.5 |
| Total lead (as Pb) / (mg/kg) | ≤ 0.3 |
| Total mercury (as Hg) / (mg/kg) | ≤ 0.01 |
| Melamine, mg/kg | ≤ 2.5 |
| Aflatoxin M₁, μg/kg | ≤ 0.5 |
| Insoluble matter / % | ≤ 0.5% |
| Test Item | Specification |
| Total bacterial count, CFU/g | n=5, c=2, m=5×10⁵, M=2×10⁶ |
| Coliforms, CFU/g | n=5, c=1, m=10, M=10² |
| Staphylococcus aureus, CFU/g | n=5, c=2, m=10, M=10² |
| Salmonella, CFU/g | n=5, c=0, m=0 |
| Mold, CFU/g | ≤ 50 CFU/g |
Applications
- Food & Beverage Industry
- Adhesives & Binders
- Coatings & Packaging
- Paints & Coatings
- Paper & Textile Industry
- Cosmetics & Personal Care
- Pharmaceutical & Medical
Packaging
- 25 kg plastic woven bags or white kraft bags
- 50 kg multi-ply oven plastic liner bags with inner liner
- Big Bags / Super Sacks for large industrial facilities
- Pallet lots for continuous processing lines
- FCL (Full Container Load) shipments for international importers
Storage Conditions
- Temperature: Store at room temperature (10–30°C) in a cool, dry place. For optimal long-term storage, temperatures below 25°C are recommended.
- Humidity: Keep away from moisture and high humidity environments. Casein is hygroscopic (absorbs moisture from the air) and should be stored in a dry environment.
- Light: Store in a shaded place away from direct sunlight.
Samples and further technical data can be provided upon request.
More details, just contact: Cherry@coreychem.com
