Cellulose ether
CMC
Sodium Carboxymethyl Cellulose
An anionic cellulose ether used to control viscosity and suspension in ceramic bodies, mortars and industrial formulations. Purity and degree of substitution determine how it performs in mineral systems.
Typical values
Technical parameters
Values describe the current standard grade. Confirm the revision on the technical data sheet for the grade and packing you intend to order.
| Parameter | Typical value |
|---|---|
| Appearance | White to cream powder |
| Purity | ≥ 75% |
| Degree of substitution | 0.7 – 0.9 |
| Moisture | ≤ 10% |
| pH, 1% solution | 6.5 – 8.5 |
| Viscosity, 2% at 25 °C | 300 – 2,000mPa·s |
Formulation
Application and dosage
Dosage is expressed as a percentage of dry mix weight. Values are starting points and should be confirmed with trial batches using local raw materials.
Ceramic body
0.10 – 0.30%
Based on dry body weight
Dry-mix mortar
0.05 – 0.20%
Often used with a cellulose ether blend
Need a starting formulation?
Share the application and target performance, and the technical team will suggest a trial starting point.
Supply
Packaging and storage
- 25 kg paper bag with PE liner
- Jumbo bags on request
Handling
Storage
- Store in a dry warehouse
- Reseal opened bags to limit moisture absorption
Shelf life
24 months from production date in unopened packaging
Documents
Technical documents
Documents are issued in the current revision. Request them with your company and destination market so the correct version is supplied.
CMC technical data sheet
TDS · English · PDF
CMC safety data sheet
SDS · English · PDF
Related products
All productsHydroxypropyl Methyl Cellulose
Water retention and thickening for cement and gypsum systems
View productHydroxyethyl Cellulose
Rheology modifier for water-based paints and adhesives
View productHydroxyethyl Methyl Cellulose
Water retention for gypsum and low-alkali systems
View productEnquiry
Request CMC samples or a quotation
The form is pre-filled with this product. Add the application, target specification and destination market so the reply can include the right grade and packing options.