Product Overview
Ammonium Carboxymethyl Cellulose (CMC-NH4) is a high-performance cellulose-based functional additive specially developed for SCR denitrification catalyst manufacturing, honeycomb ceramic production, and advanced material processing.
CMC-NH4 is the ammonium salt derivative of carboxymethyl cellulose (CMC), produced through controlled chemical modification of natural cellulose. Unlike conventional sodium-based cellulose additives, CMC-NH4 provides a sodium-free composition, ultra-low ash content, excellent binding ability, and clean thermal decomposition characteristics, making it highly suitable for high-purity ceramic and catalyst applications.
CMC-NH4 is supplied as a white, odorless, water-soluble powder. After dissolution, it forms a stable polymer solution with excellent:
- Binding performance
- Rheological control
- Slurry stabilization
- Dispersion capability
- Extrusion improvement
- Green body strength enhancement
Due to its unique chemical structure and low inorganic residue characteristics, CMC-NH4 is widely used as a binder and processing aid in:
- SCR denitrification catalysts
- Honeycomb ceramic substrates
- Automotive emission catalyst carriers
- Lithium battery electrode materials
- Electronic ceramic components
Why Choose CMC-NH4 Instead of CMC-Na?
Compared with traditional Sodium Carboxymethyl Cellulose (CMC-Na), CMC-NH4 offers significant advantages for high-temperature ceramic and catalyst manufacturing:
| Property |
CMC-NH4 |
CMC-Na |
| Ionic Form |
Ammonium Salt |
Sodium Salt |
| Sodium Content |
Sodium-Free |
Contains Sodium |
| Ash Residue |
Ultra Low |
Higher |
| Alkali Metal Contamination |
Minimal |
Possible |
| Catalyst Compatibility |
Excellent |
Moderate |
| High Temperature Application |
Excellent |
Limited |
| Thermal Decomposition |
Cleaner |
More Residue |
CMC-NH4 helps manufacturers reduce impurity introduction and maintain the purity and stability required for advanced catalyst systems.
Key Advantages of CMC-NH4
1. Ultra-Low Ash Content
CMC-NH4 produces extremely low inorganic residue during calcination and high-temperature firing processes.
Benefits:
- Minimizes contamination in ceramic systems
- Improves catalyst material purity
- Supports cleaner sintering processes
- Suitable for precision ceramic manufacturing
The low ash characteristic makes CMC-NH4 particularly suitable for SCR catalysts and high-performance ceramic applications where impurity control is critical.
2. Sodium-Free Composition
Unlike CMC-Na, CMC-NH4 does not introduce sodium ions into catalyst or ceramic formulations.
Advantages:
- Prevents alkali metal contamination
- Improves compatibility with SCR catalyst formulations
- Supports high-purity ceramic production
- Helps maintain catalyst performance stability
3. Excellent Binding and Extrusion Performance
CMC-NH4 provides strong binding capability and optimized rheological control during catalyst forming and ceramic extrusion processes.
It improves:
- Raw material cohesion
- Slurry uniformity
- Extrusion smoothness
- Green strength
- Shape retention
- Dimensional accuracy
CMC-NH4 enables manufacturers to achieve more stable extrusion processes and consistent final product quality.
4. Clean Thermal Decomposition
During calcination, CMC-NH4 decomposes efficiently with minimal residual impurities.
Processing Advantages:
- Cleaner burnout process
- Reduced post-firing contamination
- Improved ceramic structure stability
- Suitable for precision material processing
Main Applications of CMC-NH4
1. SCR Denitrification Catalyst Manufacturing
CMC-NH4 is widely used as a binder, extrusion aid, and rheology modifier in selective catalytic reduction (SCR) catalyst production.
Typical SCR Catalyst Systems:
- V₂O₅-WO₃/TiO₂ catalysts
- Honeycomb SCR catalyst blocks
- Plate-type SCR catalysts
Application Benefits:
- Improves extrusion performance
- Enhances catalyst green strength
- Promotes uniform honeycomb structures
- Improves dimensional stability
- Reduces residue after calcination
- Enhances production consistency
CMC-NH4 is especially suitable for manufacturers producing high-performance SCR catalysts for industrial NOx emission control systems.
2. Honeycomb Ceramic Materials
CMC-NH4 is suitable for the production of:
- Automotive exhaust catalyst substrates
- Diesel particulate filters (DPF)
- Industrial honeycomb ceramic structures
Performance Advantages:
- Stable extrusion behavior
- Improved pre-firing mechanical strength
- Better forming performance
- Enhanced dimensional precision
- Consistent processing quality
3. Lithium Battery Material Processing
CMC-NH4 can function as a binder and rheology control additive in electrode material preparation.
Applications:
- Silicon-based anode materials
- Graphite electrode systems
- Battery slurry preparation
Functions:
- Improves binder efficiency
- Controls slurry viscosity
- Enhances particle dispersion
- Improves coating uniformity
4. Electronic Ceramic Manufacturing
CMC-NH4 is suitable for high-purity ceramic applications including:
- Alumina ceramics
- Ferrite ceramics
- Precision ceramic components
Advantages:
- Low contamination
- Clean burnout characteristics
- Improved molding performance
- Enhanced processing stability
Chemical Information
| Item |
Specification |
| Product Name |
Ammonium Carboxymethyl Cellulose |
| Abbreviation |
CMC-NH4 |
| CAS No. |
9085-26-1 |
| Chemical Type |
Modified Cellulose |
| Ionic Form |
Ammonium Salt |
| Appearance |
White Powder |
| Solubility |
Water Soluble |
| Odor |
Odorless |
Technical Specifications
| Test Item |
Specification |
| Appearance |
White Powder |
| Viscosity (1% Solution) |
70 / 180 / 500 cps |
| pH Value |
5.0–8.0 |
| Moisture Content |
≤10–20% |
| Ash Content |
≤0.5% |
| Solubility |
Completely Soluble in Water |
Available Grades
| Grade |
Viscosity |
| CMC-NH4-70 |
70 cps |
| CMC-NH4-180 |
180 cps |
| CMC-NH4-500 |
500 cps |
Customized viscosity ranges and technical specifications are available according to customer formulation and production requirements.
Packaging and Storage
Packaging
- 20 kg kraft paper bags with PE inner liner
Storage Conditions
- Store in a cool, dry, and well-ventilated area
- Protect from moisture and direct sunlight
- Keep packaging tightly sealed after opening
Shelf Life
24 months under recommended storage conditions.
About Shanghai Prior Chemical Scientific & Technical Co., Ltd.
Shanghai Prior Chemical Scientific & Technical Co., Ltd. specializes in supplying high-performance cellulose-based functional additives for advanced industrial applications.
Our products serve industries including:
- SCR denitrification catalyst manufacturing
- Honeycomb ceramic production
- Advanced ceramic materials
- Battery material processing
- Specialty chemical applications
Our Advantages
- Stable and consistent product quality
- Reliable supply capability
- Professional quality control system
- Customized technical solutions
- International export experience
Technical Support and Services
We provide:
- Product samples
- Technical Data Sheet (TDS)
- Certificate of Analysis (COA)
- Application testing support
- Process optimization recommendations
Request CMC-NH4 Sample and Technical Support
Shanghai Prior Chemical provides professional CMC-NH4 solutions for:
- SCR catalyst manufacturers
- Honeycomb ceramic producers
- Battery material companies
- Electronic ceramic manufacturers
Contact us for CMC-NH4 samples, technical documents, and customized application support.
