Advanced Materials & Specialty

How to Buy PVP K90: Grades, Specs and COA Polyvinylpyrrolidone K90 (PVP K90, CAS 9003-39-8) is a specialty polymer, so buying well means matching the grade and K-value to the use and buying against a clear specification and certificate. This guide sets out what to fix before you request a quotation. 1. Match the grade

PVP K-Value Grades: Selection Guide PVP (polyvinylpyrrolidone, CAS 9003-39-8) is sold in grades named by K-value. All grades share the same repeat unit; they differ in molecular weight, which controls solution viscosity, binding strength and film properties. Choosing the right K-value is the main formulation decision once you have decided to use PVP at all.

PVP K90 in Electronics and Ceramics Polyvinylpyrrolidone K90 (PVP K90, CAS 9003-39-8) is used in electronics and ceramics as a binder and dispersant. In both fields the job is similar: hold a powder together or disperse it evenly while the part is formed, then burn out cleanly during firing or processing without leaving residues that

What Is Polyvinylpyrrolidone (PVP)? Polyvinylpyrrolidone (PVP), also called povidone or polyvidone, is a water-soluble, film-forming vinyl polymer made from N-vinylpyrrolidone (NVP). CAS 9003-39-8 covers the linear (non-crosslinked) PVP homopolymer. It is valued for an unusual combination of properties: it dissolves in both water and many polar organic solvents, forms clear films, adheres well to many

AOS in Emulsion Polymerisation Sodium alpha-olefin sulfonate (AOS, CAS 68439-57-6) is used as an anionic emulsifier in emulsion polymerisation, where it stabilises monomer droplets and polymer particles and helps control particle size. Its sulfonate stability and electrolyte tolerance make it useful in latices that sulfates struggle with. This article covers how AOS is used as

AOS in Enhanced Oil Recovery and Foam Flooding Sodium alpha-olefin sulfonate (AOS, CAS 68439-57-6) is one of the surfactants used in chemical enhanced oil recovery (EOR), where the fluid has to survive harsh conditions: high salinity, high hardness and elevated reservoir temperature. AOS is chosen because it is a sulfonate – stable, hard-water tolerant and

How to Buy N-Methyl-2-pyrrolidone (NMP): Grades, Specs and COA NMP (CAS 872-50-4) is a commodity solvent, but its specifications vary widely – and a “cheaper” quote can simply be a lower grade. This guide covers the grades, the parameters that matter, packaging and the paperwork to confirm, so you can compare quotations like-for-like. 1. Pick

NMP vs DMF, DMAc and DMSO: Choosing a Polar Aprotic Solvent NMP is the most widely used polar aprotic solvent in high-performance applications, but it is not the only one. DMF, DMAc and DMSO are used alongside it – each with a different balance of solvency, boiling point, toxicity and cost. This article compares the

NMP in Lithium-Ion Battery Manufacturing: The PVDF Cathode Slurry Solvent N-methyl-2-pyrrolidone (NMP, CAS 872-50-4) is the solvent at the heart of lithium-ion cathode production: it dissolves the PVDF binder and carries the active material into a coatable slurry. This article explains why NMP is used, how it fits into the electrode line, why the battery

How to Buy Phosphoric Acid: A Buyer’s Guide Phosphoric acid (H3PO4, CAS 7664-38-2) is a commodity mineral acid, but it is not one product. Before you request a quotation you need to fix three things: concentration, grade and delivery form. Get those right and the rest of the purchase is straightforward; get them wrong and