Wolff Cellulosics is one of the major producers of purified and highly purified sodium Carboxymethyl cellulose (CMC).
Our products are marketed under the brand names of Walocel® CRT A - Cellulose Gum and Walocel® CRT in more than 70 countries around the world.
As derivatives of a naturally occurring raw material and with their high degree of purity, our CMC products are ideal for a wide range of applications.
The product series are known for their high purity and consistent quality. They are produced using cutting edge technology and are constantly monitored in accordance with quality assurance procedures.
CMC is used as a highly effective additive to improve the product and processing properties in various fields of application - from foodstuffs, cosmetics and pharmaceuticals to products for the paper and textile industries.
Building material additives, printing inks, coatings, pharmaceuticals, food, cosmetics, paper or textiles – there’s a long and growing list of applications. Special-purpose cellulose derivatives produced by Wolff Cellulosics provide invisible yet indispensable benefits in countless everyday products.
Our cellulosic products perform all kinds of different functions in the various fields of application. Their capabilities include:
Walocel® CRT A - Cellulose Gum is the series of high-purity sodium carboxymethyl cellulose (CMC) products supplied by Wolff Cellulosics to the food, cosmetics and pharmaceuticals industries.
With a guaranteed degree of purity of at least 99.5%, Walocel® CRT A - Cellulose Gum meets all regulatory requirements for use in foodstuffs, cosmetics and pharmaceuticals.
Walocel® CRT A - Cellulose Gum is produced in compliance with GMP guidelines and is certified accordingly. All Walocel® CRT A - Cellulose Gum products are manufactured in accordance with a HACCP concept.
Walocel® CRT A - Cellulose Gum can be defined by:
Walocel® CRT A - Cellulose Gum is high-purity sodium carboxymethyl cellulose. CMC is a cellulose-based anionic polymer which is soluble in either hot or cold water.
Walocel® CRT A - Cellulose Gum products are:
The product range comprises viscosity from 30 mPa·s up to 60,000 mPa·s as a 2% aqueous solution. This corresponds to 30 mPa·s as a 2% solution up to 2000 mPa·s as a 0,5% solution.
Property
Rating
Ion activity
anionic
Surface activity
very low, non-foaming
Solubility
in water at any temperature
Water retention
good (pH-dependent)
Effect of temperature on the solution
viscosity drops as temperature rises
Effect of pH
drop in viscosity in the ranges pH < 3.5 and pH > 12
Effect of monovalent metal ions
minor
Effect of polyvalent metal ions
flocculation possible
Film formation
good to very good film-forming properties
Used in aqueous systems in the food, pharmaceutical and cosmetics sector, Walocel® CRT A - Cellulose Gum is ideal for:
Walocel® CRT A - Cellulose Gum films are resistant to oils, fats and organic solvents. By using Walocel® CRT A - Cellulose Gum you can precision-regulate the rheological (flow) properties of your application system, and therefore ensure that it performs perfectly in the actual processing conditions.
Walocel® CRT was developed for technical applications. Walocel® CRT has a minimum degree of purity of 98%.
Apart from standard powder grades, this product line also includes Walocel® CRT.PV grades with delayed solubility.
Walocel® CRT can be defined by:
Walocel® CRT is a purified sodium carboxymethyl cellulose. CMC is a cellulose-based anionic polymer which is soluble in either hot or cold water.
Walocel® CRT products are:
The product range comprises viscosity from 10 mPa·s up to 30,000 mPa·s as a 2% aqueous solution. This corresponds to approx. 50 mPa·s as a 4% solution up to 4.000 mPa·s as a 1% solution.
Property
Rating
Ion activity
anionic
Surface activity
very low, non-foaming
Solubility
in water at any temperature
Water retention
good (pH-dependent)
Effect of temperature on the solution
viscosity drops as temperature rises
Effect of pH
drop in viscosity in the ranges pH < 3.5 and pH > 12
Effect of monovalent metal ions
minor
Effect of polyvalent metal ions
flocculation possible
Film formation
good to very good film-forming properties
Used in aqueous systems, Walocel® CRT is ideal for
Walocel® CRT films are resistant to oils, fats and organic solvents. By using Walocel® CRT you can precision-regulate the rheological (flow) properties of your application system, and therefore ensure that it performs perfectly in the actual processing conditions.