Hunan Sentai Biotechnology Co., Ltd.
Specification Sheet
ST-4 Battery-Grade CMC
Mid–high viscosity
- Chemical name
- Sodium carboxymethyl cellulose
- CAS No.
- 9004-32-4
- HS code
- 3912.31
- Standard
- Sentai TDS
Specification limits
| Parameter | Limit | Conditions |
|---|---|---|
| Viscosity | 2000–2600 mPa·sBrookfield · 1% · 25 °C | Brookfield · 1% · 25 °C |
| Degree of substitution (DS) | 0.8–1 | — |
| Purity | ≥ 99.5 %dry basis | dry basis |
| pH (1 % solution) | 6–8.525 °C | 25 °C |
| Moisture / loss on drying | ≤ 10 %105 °C | 105 °C |
| Chloride (as NaCl) | ≤ 0.5 % | — |
| Gel particles | ≤ 5 / 4 cm² | — |
| Fibre / insolubles | Class A | — |
| Loss on drying | ≤ 10.0 % | — |
| Particle size | ≥ 85 % through 200 mesh (75 µm) | — |
| Compatible binders | SBR · PAA | — |
| Appearance | White to off-white powder or granules | |
Typical use
- Graphite anodes for EV, ESS and consumer cells
- Silicon-carbon composite anodes (with PAA or SBR)
- LFP / LTO water-based electrode systems
- Separator coating slurries (ceramic-coated separators)
Typical dosage: 0.8 – 1.5 % of electrode solids
Packing & logistics
- Packaging:
- 25 kg kraft-composite or PP woven bag with food-grade PE liner · 500 kg / 1 t jumbo bags
- Storage:
- Dry, ventilated warehouse; keep bags closed; avoid humidity and heat
- Shelf life:
- 24 months in original sealed packaging, stored cool and dry (typical — confirm on TDS) TBC
- Documents available:
- COA · TDS · MSDS/SDS · CO · Form A · Form E
Information is given in good faith for guidance; it does not constitute a warranty of fitness for a particular purpose. Users should verify suitability in their own process. Specifications may be revised — always refer to the TDS and COA supplied with the shipment.
Hunan Sentai Biotechnology Co., Ltd. · cmc@xtsentai.com · +86 731 5778 8978 · sentai-cmc.com/specifications/battery-st-4