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Highly selective clay-based catalyst optimized for condensation and esterification reactions.
Thermally stable up to 250 °C, enabling robust performance in continuous industrial processes.
Low heavy metal content, supporting compliance with stringent food-contact and pharmaceutical-grade requirements.
Consistent particle size distribution ensures uniform bed packing and predictable pressure drop in fixed-bed reactors.
Pre-activated and ready-to-use — eliminates need for on-site calcination or activation pretreatment.
Production of plasticizers (e.g., dioctyl phthalate, DOA) via esterification of phthalic anhydride or adipic acid.
Synthesis of bio-based lubricants and synthetic esters from renewable feedstocks.
Catalytic dehydration in fine chemical intermediates, including acetal and ketal formation.
Refining of natural oils and fatty acid derivatives for high-purity oleochemical applications.
Downstream processing in pharmaceutical API synthesis requiring mild, heterogeneous acid catalysis.
| Chemical Type | Acid-activated bentonitic clay |
| Product Form | Granular solid |
| Appearance | Light grey to beige granules |
| Primary Applications | Esterification, condensation, dehydration |
| Key Features | Heterogeneous, non-corrosive, recyclable catalyst |
| Benefits | Reduces wastewater generation vs. mineral acid processes |
| Storage Conditions | Keep in dry, well-ventilated area; protect from moisture |
| Regulatory Status | REACH registered; compliant with FDA 21 CFR §173.350 for indirect food additives |
Q1: What is the primary function of TONSIL CO 610G in polymer processing?
A: TONSIL CO 610G is a high-activity, acid-treated bentonite-based catalyst designed to promote condensation reactions—particularly in silicone and polyurethane systems—by enhancing crosslinking efficiency and improving cure kinetics under ambient or mild thermal conditions.
Q2: Is TONSIL CO 610G compatible with moisture-cure silicone formulations?
A: Yes, it is specifically engineered for use in one-component moisture-curing silicones, where it accelerates the hydrolysis and condensation of alkoxysilane groups without inducing premature viscosity increase or compromising shelf life when properly formulated.
Q3: How should TONSIL CO 610G be incorporated into a formulation?
A: It is typically added during the dispersion or mixing stage under controlled shear and low-moisture conditions. Pre-drying of the catalyst is not required, but handling in a dry environment helps maintain consistent catalytic performance.
Q4: Does TONSIL CO 610G affect the final physical properties of cured elastomers?
A: When used at recommended dosages, it supports improved tensile strength and elongation retention in cured silicone elastomers, while maintaining good transparency and low extractables—contributing to stable mechanical and optical performance in end applications.
Q5: What storage conditions are recommended to preserve catalytic activity?
A: Store in original sealed packaging at room temperature in a dry, well-ventilated area. Avoid prolonged exposure to humidity or elevated temperatures, as these may gradually reduce reactivity over time.
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E-mail: wangxingqiang@ericwchem.com
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