What is the typical ratio of 2-hydroxypropyl to 1-hydroxypropyl isomers in Hydroxypropyl Methacrylate (HPMA)? Does this ratio affect the reactivity?

Are there any "green acrylic acid" products currently on the market based on bio-based raw materials (such as dehydrated lactic acid), and what is their current cost?

What are the refractive index, viscosity, and density of Hydroxypropyl Methacrylate (HPMA)? This information will help me build a mathematical model for the formulation.

I need to produce a polymeric flocculant. Which purity (≥99.5%) of acrylic acid would you recommend? What should the corresponding MEHQ inhibitor content range be?

What is the polymerization reactivity ratio between Hydroxypropyl Methacrylate (HPMA) and methyl methacrylate (MMA)? Is it suitable for free radical polymerization?

Comparing acrylic acid products from Wanhua, BASF, and Nippon Shokubai, which company has a better reputation for quality stability in the industry?

How is Hydroxypropyl Methacrylate (HPMA) listed in international chemical directories (such as TSCA and IECSC)? How biodegradable is Hydroxypropyl Methacrylate (HPMA)? Is it a flammable and hazardous material?

For highly sensitive electronic-grade coatings, what should be the upper limit for formaldehyde and acetaldehyde content in acrylic acid? Which stabilization system, 200ppm MEHQ or 500ppm PTZ, is more suitable for tropical sea freight with a travel time of up to 45 days?