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<strong>DOLATAN</strong> <strong>MG</strong>Basification agent for chrome and other mineral tannagesChemical compositionMetal oxideAspect:light brown powderActive matter: approx. 100 %Storage stability: up to 12 months when dry and properly storedPropertiesThe pH-value rises relatively slowly after the addition of <strong>DOLATAN</strong> <strong>MG</strong>. An undesirablepH-jump, as it is observed after the addition of other basificationagents, does not occur when using <strong>DOLATAN</strong> <strong>MG</strong>.Fatliquoring agents used during the pickle or the chrome tannage can furtherreduce the reaction rate.Characteristics:- very good distribution of chromium in the leather cross-section- fine grain pattern- excellent chrome exhaustionApplication- Unsplit cattle hides: with pickle pH 2.8 - 3.0 and 7 % chrome tanning agent:(25 % chromium oxide, 33 % bas.)0.8 % <strong>DOLATAN</strong> <strong>MG</strong>final pH after > 8 hours: 3.8 - 4.0,final temperature: 40 - 42°C- Split cattle hides: with pickle pH 3.2 - 3.4 and 5.5 % chrome tanning agent:(25 % chromium oxide, 33 % bas.)0.6 % <strong>DOLATAN</strong> <strong>MG</strong>final pH after > 8 hours: 3.8 - 4.0,final temperature: 40 - 42°CThe above results have been obtained from trials in our laboratory and plant. In the lightof changing conditions they can serve only as a guide and are therefore offered withoutobligation. We ask you to observe the possible rights of third parties.Stand:16. January 2014Page:1 / 2
<strong>DOLATAN</strong> <strong>MG</strong>NoteThe quantity of the product depends on many factors, such as:- kind and quantity of the pickling acid- kind and quantity of the chrome tanning agent- required final pH- final tanning temperature<strong>DOLATAN</strong> <strong>MG</strong> is added undissolved, usually 60 to 90 minutes after the chrome tannagehas begun. In the case of unsplit cattle pelts and strong leathers in general,the preliminary running time has to be extended until the tanning agent has diffusedevenly.Generally, previous trials are recommended.The above results have been obtained from trials in our laboratory and plant. In the lightof changing conditions they can serve only as a guide and are therefore offered withoutobligation. We ask you to observe the possible rights of third parties.Stand:16. January 2014Page:2 / 2
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