Aqualon CMC

Aqualon CMC- T (technical grades) polymers are technical grades of sodium carboxymethylcellulose (CMC). They assay 98.0% minimum CMC on a dry basis; the remainder consists of byproduct salts (primarily sodium chloride and sodium glycolate). CMC-T grades are produced in several viscosity types, in powder and granular forms.

Key Attributes

  • Rheology control agent
  • Thickening agent
  • Suspending aid
  • Stabilizer
  • Dispersant
  • Film-forming agent
  • Binder
  • Psuedoplastic or thixotropic behavior dependent on degree of substitution
  • Water- retention agent

ADDITIONAL INFORMATION

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Download: Aqualon CMC PDS (PDF, 174 KB)

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Applications and Usage Notes

  • Paper:
    - It can help be applied at the size press or calendar waterbox as a surface treatment to reduce porosity, improve grease and oil holdout, control curl, and improve surface properties. It can also be applied in a variety of converting operations because of its thickening, suspending, and adhesive properties.
    -When added to paper coating, CMC contributes a high level of water retention and rheology control to the coating formulation. These coating properties help to optimize coat-weight control, improve coater runnability, and enhance finished sheet properties.
    -Wet strength for paper towels.
  • Mining: Used in a frothing-flotation process, pellet binder, and as a mineral dispersant.
  • Ceramics: Acts as a binder, film former, green strength additive, rheology modifier, suspension agent, water retention agent/ controlled water release agent.
  • Adhesives: Acts as a suspension agent, thickener, and film former.
  • Explosives: Functions as a water blocking agent to prevent degradation of explosive from infiltration of ground water in drilled charged blast holes, and gelling agent for high solids aqueous nitrate (and some other salts) solutions.
  • Welding Rods: Serves as a binder.
  • Batteries: Used as a binder, film former, and dispersant.
  • Cables: Water blocking agent.
  • Civil Engineering: Rheology modifier, suspension agent, binder, extrusion aid, water flow blocking agent.
  • Mineral Slurries: Acts as a dispersant.
  • Textiles and Leather: Used as a binder, additive used as a sizing and finishing agent, and suspension agent.

Typical Product Properties

DS-TypeSubstitution range
70.65 to 0.90

(a) Ranges shown in this table are not necessarily current specifications.

Typical Viscosity Ranges(b)

Grades DS7Concentration %Range 25 degrees C mPas
7MCT2300-600
7MT2300-600
7L10T280-150
7LCT225-50
7LT225-50

(b) Viscosity determined at 25 degrees C using a Brookfield LVF viscometer

Particle size distributions of Aqualon CMC

Aqualon CMC is available with different particle size distributions to meet various production and end use needs. The typical particle size distributions available are in the tables below.

DesignationDescriptionParticle Size (d)
NoneRegular/ PremiumOn US 30, 1% max.
On US 40, 5% max.
CCoarseOn US 20, 1% max.
Through US 40, 55% max.

(d) All screens are US bureau of standards sieve series

DesignationDescriptionParticle Size (microns) by Malvern laser diffraction
NoneRegular/ Premiumd(0.5): 0-250
CCoarsed(0.5): 430-900

Other typical properties of Aqualon CMC-T(a)

Moisture content, %, max10.0
Bulk density, g/ml0.75
pH of 2% solution7.5
Purity, %, min.98.0

(a) Not to be construed as specifications. Specifications are available by request.

packaging information

ProductPhysical FormPkg TypeNet Wgt (lbs)Net Wgt (kgs)
AqualonTM CMC (all grades)PowderBag5022.6
Aqualon CMC (all grades)PowderPallet2000907.1

Packaging available in 1000 lbs and 2000 lb bags upon request.

CASRN: 9004-32-4
CAS Name: Cellulose, carboxymethyl ether, sodium salt