China Factory Direct
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| CAS number | 9004-35-7 |
| Product name | Cellulose acetate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Textiles | Manufacturing synthetic fibers (acetate rayon) | Dissolving cellulose acetate in solvents such as acetone and spinning into fibers via wet or dry spinning |
| Plastics | Producing transparent plastic films, eyeglass frames, and combs | Blending cellulose acetate with plasticizers and forming products via hot pressing or injection molding |
| Packaging | Manufacturing cigarette filters | Spinning cellulose acetate into staple fibers, followed by heat setting and cutting into filter rods |
| Coatings | Acting as a film-forming agent in coatings | Dissolving cellulose acetate in organic solvents to formulate clear coats or primers, applied by spraying or brushing |
| Pharmaceuticals | Serving as a controlled-release coating material | Dissolving cellulose acetate in an ethanol–water system to coat tablet cores for controlled drug release |
| Photography | Manufacturing film base (historical application) | Coating cellulose acetate onto polyester or paper substrates and drying to form a support for photosensitive emulsions |
| Printing | Providing the resin component in gravure printing inks | Dissolving cellulose acetate in ester or ketone solvents to serve as a film-forming and binding agent in inks |
| Food | Functioning as a food additive (thickener and stabilizer) | Dispersing micronized cellulose acetate in aqueous or oil phases for use in sauces, ice cream, and similar products |
| Detection Item | Common Analytical Method | Method Overview |
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| Acetyl Content | Acid-Base Titration | Hydrolysis of acetate groups followed by titration of liberated acetic acid with standardized NaOH. |
| Viscosity Average Molecular Weight | Capillary Viscometry | Measurement of intrinsic viscosity in solvent (e.g., acetone/water) and calculation via Mark-Houwink equation. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration quantifying water based on iodine-sulfur dioxide reaction stoichiometry. |
| Ash Content | Gravimetric Analysis (Weight Loss on Ignition) | Heating to 550-600 C to combust organic matter, then weighing residual inorganic ash. |
| Sulfated Ash | Gravimetric Analysis | Sample treated with sulfuric acid prior to ignition; residue represents metal sulfates and inorganic impurities. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element quantification after acid digestion using plasma-induced atomic emission spectroscopy. |
| Residual Solvents (Acetone, Methanol) | Gas Chromatography (GC-FID) | Separation and detection of volatile solvents using flame ionization detection. |
| Clarity and Color | Visual Inspection / APHA Color Scale | Comparison of solution appearance against platinum-cobalt standard color solutions under controlled lighting. |
| pH of Aqueous Dispersion | Potentiometric pH Measurement | Direct measurement using calibrated glass electrode in aqueous suspension at specified concentration and temperature. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to determine size distribution profile. |
| Sulfur Content | Combustion Ion Chromatography | High-temperature combustion followed by IC detection of sulfate anions in absorption solution. |
| Iron Content | AAS | Atomic absorption spectroscopy after acid digestion and matrix-matched calibration for Fe determination. |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.5% (by HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.3% |
| Residue on Ignition | <=0.2% |
| Acid Value (mg KOH/g) | <=1.5 mg KOH/g |
| Solubility | Soluble in acetone, ethyl acetate, and chloroform; practically insoluble in water |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.