What are the subtle differences between hydroxyethyl acrylate (HEA) and hydroxypropyl acrylate (HPA) in terms of hydrophilicity and glass transition temperature ($T_g$)?

What quality management systems (such as IATF 16949) does Ascent Petrochem employ when handling high-purity electronic-grade chemicals?

What is the typical ethylene glycol diacrylate (EGDMA) impurity content in industrial-grade HEA? How does a high impurity content lead to resin gelation?

Ethyl Methyl Carbonate (EMC) is extremely sensitive to moisture. Have the 200L stainless steel drums or ISO tanks provided by the supplier undergone high-pressure nitrogen purging and sealing for moisture protection?

MEHQ is commonly used as a polymerization inhibitor in HEA. How do the three specifications—100ppm, 200ppm, and 500ppm—affect the induction period of downstream polymerization?

Ethyl Methyl Carbonate (EMC) is classified as a Class 3 flammable liquid. How long does it take to export from the Chinese factory to major ports in South Korea, Japan, or the United States? Is there guaranteed cargo space?

What is the weight of price fluctuations of the main raw materials (ethylene oxide and acrylic acid) in the global HEA market on the final selling price of HEA?

Can the supplier provide a Certificate of Account (COA) including a complete 'impurity profile' analysis and confirm that each drum has a unique serial number for traceability?