Technical Analysis Reviews Sodium Carboxymethyl Cellulose Specifications Physical Properties
Industrial-grade sodium carboxymethyl cellulose, known as CMC, is specified in available technical data at 99 percent purity and a bulk density of 0.7 grams per cubic centimeter. The material is described as a white powder supplied in 25-kilogram high-density polyethylene bags, with a minimum order quantity of 10 kilograms. Those parameters are central to assessing thickening performance, storage requirements and metering accuracy in production.
Specifications and physical characteristics
The product data present CMC as a high-purity additive intended for use across a range of industrial applications. Its physical form and density are listed alongside purity and packaging details, providing a compact reference for formulators and procurement teams.
| Parameter | Specification |
|---|---|
| Appearance | White powder |
| Purity | 99% |
| Density | 0.7 g/cm³ |
| Packaging | 25 kg HDPE bags |
The 99 percent purity level is relevant to formulation stability because it limits the presence of byproducts that can interfere with the final product’s physical and chemical properties. The density figure, meanwhile, describes the powder’s bulk behavior and serves as a practical input for storage planning and feed-system calibration.
Selection and supply chain considerations
The 0.7 g/cm³ density affects how much warehouse space the powder occupies and how accurately it can be measured in production. For automated feeding systems, the value should be used to calibrate screw speed or metering pump parameters so that volume-based equipment delivers the intended weight.
Purity is equally important in selection. A 99 percent specification indicates minimal byproduct content, which generally supports more consistent thickening performance and better clarity in formulations, while reducing the risk of sediment or off-odor issues in sensitive applications.
The 10-kilogram minimum order quantity offers flexibility for small-scale trial production and research validation. At the same time, the standard 25-kilogram bag balances logistics costs and handling efficiency for larger industrial runs.
Storage and handling implications
High-density polyethylene bags provide a useful moisture barrier, but the powder should still be stored in a cool, dry and ventilated warehouse. Direct sunlight should be avoided to prevent moisture absorption and caking, which can affect later dissolution performance.
Handling procedures should account for the powder’s bulk density and packaging format. Keeping storage areas dry and feed equipment properly calibrated helps maintain consistent dosing and reduces variability between production batches.
