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Indicating silica gel for moisture control, also known as KC-Trockenperlen® Orange CHAMELEON®

Product data

Revised 2015

BASF Sorbead Orange CHAMELEON® indicating silica gel is the newest adsorbent technology from BASF. Sorbead Orange CHAMELEON is used where processes and products need to be protected from the negative consequences of humidity and moisture.

Similar to our SorbeadTM R adsorbent, BASF Sorbead Orange CHAMELEON is a beaded silica gel with very high mechanical integrity. It meets the demand for a heavy-metal free and environmental friendly indicating agent.

With a new and improved indicator, BASF Sorbead Orange CHAMELEON provides safe moisture indication without any concerns regarding carcinogenic
ingredients. It also provides superior moisture indication with a crisp color change.

The degree of moisture uptake is indicated by a color change from orange to colorless at approx. 6 wt % water content. However, it continues to adsorb water from this point until reaching its maximum capacity.

BASF Sorbead Orange CHAMELEON regains its full adsorption capacity when regenerated. Its unique formulations ensures advanced stability against harmful UV-rays.

Typical applications for Sorbead Orange CHAMELEON are transformer air breathers as well as other breather filters, laboratory uses, packaging of moisture sensitive goods and many others.

Typical properties
Chemical composition SiO2
97 Gew.%
3 Gew.%
0.1 Gew.%
Surface area (BET) 750 m2/g
Pore volume 0.4 cm3/g
Equilibrium capacity for water vapor at 25˚ C 10 % R.H.
80 % R.H.
6.5 Gew.%
42 Gew.%
Packed bulk density 0.8 kg/L
Crushing strength 200 N
Attrition rate 0.05 Gew.%
Color when dry Deep Orange
Color when wet Translucent

The typical properties are representative values that do not imply any guarantee or warranty by BASF Catalysts Germany GmbH.

Typical distribution of grain size

  •  2.0 – 5.0 mm​


  • ​Steel drums 55 lbs., 110 lbs., 330 lbs.
  • ​Tins 8 x 6.6 lbs., 20 x 2.2 lbs.


Outline in our Current Safety Data Sheet – Click Here

About BASF
As the world’s leading chemical company, BASF’s portfolio ranges from chemicals, plastics, performance products, agricultural products and fine chemicals to crude oil and natural gas. BASF’s intelligent system solutions and high-value products help its customers to be more successful. BASF develops new technologies and uses them to open up additional market opportunities. It combines economic success with environmental protection and social responsibility, thus contributing to a better future.

For further information or technical questions, please contact us: Tel: +49 511 28 86 60 Fax: +49 511 28 86 760 e-mail: Sorbead@basf.com

BASF Catalysts Germany GmbH
Freundallee 23, 30173 Hannover, Germany e-mail: Trockenperlen@basf.com Internet: www.basf.com

Although all statements and information in this publication are believed to be accurate and reliable, they are presented gratis and for guidance only, and risks and liability for results obtained by use of the products or application of the suggestions described are assumed by the user. NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE MADE REGARDING PRODUCTS DESCRIBED OR DESIGNS, DATA OR INFORMATION SET FORTH. Statements or suggestions concerning possible use of the products are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent. The user should not assume that toxicity data and safety measures are indicated or that other measures may not be required.