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CMC Sodium Carboxymethyl Cellulose - Technical Data
Basic & Physic Info 基础&理化信息
Quality Specifications 质量技术指标
CMC Application Fields & End Products 应用领域及下游产品
Application Fields 应用领域
End Products 下游成品
CMC Grade Classification 产品分级说明
Classification by Application 按用途分级
Classification by Technical Index 按技术指标分级
POINTS FOR ATTENTION
ORDER INSTRUCTIONS
- Minimum Order Quantity: 1 full 20GP container. Shipment is only for full container orders. Samples can be arranged for quality testing before bulk order placement.
- Product Specification Confirmation: Please confirm CMC grade, viscosity, degree of substitution and other indicators before placing orders. Custom specifications need confirmation in advance.
- Packaging: Standard 25kg kraft paper bags packed on pallets. Custom printed shipping marks and special packaging are negotiable.
- Documents: We supply a full set of export documents including Commercial Invoice, Packing List, Certificate of Origin, TDS and MSDS.
- Storage & Transportation Reminder: CMC powder should be stored in a dry and cool warehouse. Moisture and rain protection shall be ensured throughout sea transportation.
USAGE NOTES
- Dissolving Method: Sprinkle CMC powder slowly into continuously stirred water to avoid agglomeration. Do not pour large quantities of powder into water at one time.
- pH Environment: CMC performs stably under neutral to weak alkaline conditions. Strong acid environment will reduce its viscosity and thickening effect.
- Stirring & Aging: Keep stirring until fully dispersed, then stand for sufficient aging time to obtain stable colloid solution.
- Compatibility: Please test compatibility in advance when mixing with other additives, salts or chemical raw materials to prevent system stratification.
- Personal Protection: Avoid inhalation of powder dust. Wear dust mask and gloves during operation. In case of eye contact, rinse with plenty of clean water.
COMMON FORMULAS
| Application | Formula Reference | Remarks |
|---|---|---|
| Dry Mortar | CMC 0.2%~0.5%, Cement + Sand 99.5%~99.8% | Improve water retention & workability |
| Water-based Coatings | CMC 0.3%~0.8%, Water, Pigment, Dispersant, Defoamer | Thickening & anti-settling |
| Textile Printing Paste | CMC 1%~2%, Water, Dyestuff, Auxiliaries | Printing thickener |
| Ceramic Slip | CMC 0.15%~0.3%, Ceramic powder, Water | Plasticizing & binder |
Note: All formulas are for reference only. Actual dosage needs to be adjusted according to raw material quality, construction temperature and target viscosity. Small batch tests are strongly recommended before mass production.
COMMON PROBLEMS IN DOWNSTREAM PRODUCTION
- Powder Agglomeration: CMC lumps during feeding, caused by rapid pouring into water. Solution: slowly sprinkle powder under continuous stirring.
- Insufficient Viscosity: Low final viscosity. Possible reasons: excessive high temperature, strong acid environment, poor aging time or wrong CMC grade.
- Solution Stratification & Sedimentation: System separates after standing. Mainly due to incompatibility with salts or other additives, insufficient stirring and dispersion.
- Poor Water Retention (Dry Mortar): Fast water loss, short open time. Check CMC viscosity, dosage and substitution degree, increase dosage properly.
- Air Bubbles in Slurry / Coating: Too many bubbles after CMC dissolution. Control stirring speed and add defoamer if needed.
- Poor Film-forming Performance: Uneven film, cracks after drying. Adjust CMC grade and solid content of the whole system.
FAQ
PRICE INFORMATION
- Quotation Basis: CMC price depends on product grade, viscosity, substitution degree, order quantity and delivery terms.
- Price Validity: All quotations are subject to market raw material fluctuation. Normally valid for 7 days unless otherwise specified.
- Price Contains: The quoted price covers product cost and standard export packaging. Freight, insurance and export charges are calculated separately according to Incoterms.
- Tax & Invoice: Commercial invoice for export will be provided. Relevant export tax formalities can be handled.
- Payment Discount: Better price can be offered for larger repeated orders. Please contact us for the latest formal quotation.
DELIVERY TIME & SHELF LIFE
- Production Lead Time: 7–15 working days after receiving your deposit, subject to factory production schedule.
- Shipping Arrangement: After production completion, we will book container and arrange shipment. Port space availability may affect the departure date.
- Transit Time: Sea transit time varies according to destination port, generally ranges from 15 to 45 days.
- Shelf Life: 24 months from production date when stored under proper dry and cool conditions with original sealed packaging.
- Storage Warning: Once the bag is opened, please consume as soon as possible and keep away from moisture, high temperature and direct sunlight.
PRODUCT QUALITY
- Raw Material Inspection: All raw materials are strictly inspected before entering production line to guarantee stable base quality.
- In-process Monitoring: Continuous online monitoring during production for viscosity, substitution degree and moisture content.
- Batch Test: Every finished batch will be sampled and tested before delivery. Qualified report will be provided together with shipment documents.
- Consistency Control: Automated production lines reduce batch difference, ensuring stable performance for repeated orders.
- Quality Support: We accept third-party inspection before shipment. Technical team offers after-sales technical support for quality related issues.
ABOUT US
- Headquartered in Shijiazhuang: Based in Shijiazhuang, Hebei, a globally influential fine chemical production hub with huge capacity and full industrial chain to ensure stable raw materials and bulk supply.
- Geographic Advantage: Convenient inland transport near Tianjin and Qingdao ports, supporting fast container shipment and competitive export logistics cost.
- Full-chain Supplier: One-stop provider of fine chemical additives and matching production equipment, custom service available beyond cellulose ethers.
- Technical Team: Professional team supplies formula consultation, sample testing and product selection for various industrial projects.
- Global Export: Years of export experience, providing reliable goods, full export documents and timely after-sales technical support.
相关产品及设备
- AIChE https://www.aiche.org/
- IChemE https://www.icheme.org/
- Cheresources https://www.cheresources.com/
- NIST Chemistry WebBook https://webbook.nist.gov/chemistry/
- AspenTech https://www.aspentech.com/
- DECHEMA https://www.dechema.de/en.html
- ChemEngPlanet https://www.chemengplanet.com/
- PubChem https://pubchem.ncbi.nlm.nih.gov/
- Chemical Processing https://www.chemicalprocessing.com/
- ChemIndustry https://www.chemindustry.com/
- PharmaChemEngineer https://www.pharmachemeng.com/
- GlobalSpec https://www.globalspec.com/





