For a customer with an annual consumption of 500 tons, is it more cost-effective and safer to build stainless steel storage tanks or use ISO tanks for direct feeding?

Is PNA a 'highly polluting, high-environmentally-risk' product? What are the current global restrictions on its discharge into industrial wastewater?

What percentage of the price of methacrylic acid is affected by fluctuations in raw material costs for the ACH process (acetone cyanohydrin process) and the C4 process (isobutylene process)? Which suppliers can provide recommendations on the optimal ratio of Methacrylic Acid MAA in high-performance polycarboxylate superplasticizers?

Under the International Mobility Management Group (IMDG) standards, what class of dangerous goods does 4-nitroaniline belong to?

When importing Methacrylic Acid MAA, in addition to the COA and MSDS, is it necessary for the supplier to provide test records showing the degradation of the polymerization inhibitor content over time?

In specific synthetic routes, are there safer and more environmentally friendly alternatives to 4-nitroaniline?

What is Ascent Petrochem's supply history for methacrylate products? Does it have formal REACH registration to ensure EU customs clearance?

What are the differences in impurity composition between PNA produced by the ammonolysis of p-nitrochlorobenzene and the nitration of acetanilide?