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In the intricate world of chemical analysis and product formulation, having access to reliable and high-quality reagents is non-negotiable. Pyrocatechol Violet, identified by its CAS number 115-41-3, stands out as a critical component for various laboratory applications, particularly in complexometric titrations. This article aims to provide a comprehensive guide for procurement managers and research scientists looking to understand and purchase this vital chemical indicator from leading manufacturers and suppliers, with a special focus on sourcing from China.
Understanding the Chemistry of Pyrocatechol Violet
Pyrocatechol Violet (C19H14O7S) is a sulfonphthalein dye that presents as a red-brown crystalline powder. Its chemical structure allows it to chelate with metal ions, forming colored complexes that are easily detectable. This characteristic makes it an indispensable indicator in titrations where the concentration of metal ions needs to be accurately determined. For instance, in EDTA titrations, the sharp color change of Pyrocatechol Violet signals the precise endpoint, ensuring the accuracy of the quantitative analysis. Its solubility in water and alcohols further enhances its usability in aqueous solutions, a common medium for many laboratory procedures.
Applications Beyond Titration
While its primary role is as a complexometric indicator, Pyrocatechol Violet also serves as a pH indicator. Its transition interval, typically from pH 6.0 to 9.0, allows for visual monitoring of acidity or alkalinity within this range. This dual functionality makes it a versatile reagent in a chemical laboratory. For R&D scientists, this means having a single reagent capable of supporting multiple analytical needs, potentially streamlining procurement and inventory.
Navigating the Purchase Process: Key Considerations for Buyers
When considering where to buy Pyrocatechol Violet (CAS 115-41-3), several factors are crucial:
By understanding these points, procurement managers can make informed decisions, ensuring they purchase Pyrocatechol Violet (CAS 115-41-3) that meets their technical requirements and budget. For anyone seeking a reliable source for this essential chemical, exploring options from established Chinese suppliers is a prudent step towards securing your laboratory's analytical capabilities.
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1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
