Abstract. Atmospheric organic acids (OAs) are expected to enhance methanesulfonic acid (MSA)-driven new particle formation (NPF). However, the exact role of OAs in MSA-driven NPF remains unclear. Here, we employed a two-step strategy probe MSA–methylamine (MA) NPF. Initially, evaluated enhancing potential 12 commonly detected ternary MA–MSA–OA cluster by considering free energies (MSA)1(MA)1(OA...

Abstract. Acid–base clusters and stable salt formation are critical drivers of new particle events in the atmosphere. In this study, we explore heterodimer (a cluster one acid base) stability as a function gas-phase acidity, aqueous-phase proton transference, vapor pressure, dipole moment polarizability for salts comprised sulfuric acid, methanesulfonic nitric with nine bases. The best predicto...

Single crystals of ScOH(CH3SO3)2 were obtained from a solution of Sc2(CO3)3 in methanesulfonic acid at pH 7. According to the X-ray single crystal structure determination, the compound crystallizes with the non-centrosymmetric orthorhombic space group Pmc21 (Z = 8, a = 743.92(8), b = 1497.7(3), c = 1540.1(2) pm, Rall = 0.0925) and contains the Sc3+ ions in octahedral coordination of oxygen atom...

Previous reports (Drescher, D. G., and Lee, K. S. (1978) Anal. Biochem. 84, 559-569; Lee, K. S., and Drescher, D. G. (1978) Int. J. Biochem. 9,457-467) have shown that high performance liquid chromatographic analysis of amino acids with the o-phthaldialdehyde/2mercaptoethanol reagent (OPA/P-ME) is one of the most sensitive procedures currently available for micro amino acid analysis. In the pre...

The role of thiourea as an organic additive in the nucleation and growth mechanism was studied for copper deposition its application decorative electroplating fashion accessory industries. bath designed to reduce environmental ecological impacts using methanesulfonic acid electrolyte alternative alkaline cyanide baths. We evaluated exploiting voltametric chronoamperometric measurements with a b...

Regioselective methanesulfonylation of simple aromatics using methanesulfonic anhydride can be achieved over zeolite catalysts. For example, methanesulfonylation of toluene over various cation-exchanged zeolite beta catalysts affords higher para-selectivity in the synthesis of methyl tolyl sulfone than standard Friedel-Crafts methanesulfonylation utilising aluminium chloride.

γ-Valerolactone (GVL) is a platform chemical for the synthesis of both biofuels and biochemicals. The LA production from depithed sugarcane bagasse (DSB) resulted in 55% yield, resulting was used to produce GVL. effect process parameters, namely, temperature (25–200 °C), time (2–10 h), catalyst loading (0.5–5 g) were investigated GVL LA. Thereafter, optimized conditions derived yielded 77.6%. h...