20261-59-0

Usage

InChI:InChI=1/2C2H7NO.H2O4S/c2*3-1-2-4;1-5(2,3)4/h2*4H,1-3H2;(H2,1,2,3,4)

Upstream product

• 141-43-5 ethanolamine 
• 7664-93-9 sulfuric acid 
• 20261-59-0 monoethanolamine sulfate 

Downstream Products

• 29263-30-7 (2,6-dichloro-phenyl)-(4,5-dihydro-thiazol-2-yl)-amine 
• 926-39-6 sulfuric acid mono-(2-amino-ethyl ester) 
• 20261-59-0 monoethanolammonium hydrogensulfate 

Relevant academic research and scientific papers

Cyclic process for producing taurine from monoethanolamine

There is disclosed a cyclic process for producing taurine from monoethanolamine comprising the steps of: (a) reacting monoethanolamine with ammonium sulfate in the recycling mother liquor to yield monoethanolamine sulfate; (b) reacting the monoethanolamine sulfate with sulfuric acid to form 2-aminoethyl hydrogen sulfate ester; (c) subjecting the 2-aminoethyl hydrogen sulfate ester to a sulfonation reaction with ammonium sulfite to yield taurine and ammonium sulfate; (d) separating the taurine and the ammonium sulfate by means of solid-liquid separation; (e) removing the excess ammonium sulfite from the mother liquor to obtain an aqueous solution comprised of ammonium sulfate and (f) returning the aqueous solution to step (a) to complete the cyclic process.

One-pot integrated biofuel production using low-cost biocompatible protic ionic liquids

The transformation of biomass into liquid fuels is of great importance. Previous work has demonstrated the capability of specific ionic liquids (ILs), such as 1-ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]) and cholinium lysinate ([Ch][Lys]), to be effective biomass pretreatment solvents. Using these ILs for an integrated biomass-to-biofuel configuration is still challenging due to a significant water-wash related to the high toxicity of [C2C1Im][OAc] and pH adjustment prior to saccharification for the highly basic [Ch][Lys]. In this work, we demonstrate, for the first time, that a one-pot integrated biofuel production is enabled by a low cost (～$1 per kg) and biocompatible protic IL (PIL), ethanolamine acetate, without pH adjustments, water-wash and solid-liquid separations. After pretreatment, the whole slurry is directly used for simultaneous saccharification and fermentation (SSF) with commercial enzyme cocktails and wild type yeast strains, generating 70% of the theoretical ethanol yield (based on switchgrass). The structure-performance relationships of PILs in terms of lignin removal, net basicity, and pH value are systematically studied. A technoeconomic analysis (TEA) revealed that an integrated biorefinery concept based on this PIL process could potentially reduce the minimum ethanol selling price by more than 40% compared to scenarios that require pH adjustment prior to SSF. Improvement of the economic performance will be made by reducing the dilution and enzyme loading during SSF as identified by TEA. This study demonstrates the impact of a biocompatible IL in terms of process optimization and conversion efficiency, and opens up avenues for realizing an IL based efficiently integrated biomass conversion technology.

ALKANOLAMINE SULFATE WATER CONDITIONERS

Embodiments of the present disclosure include an agricultural composition containing an agriculturally active ingredient and a water conditioning agent. The water conditioning agent is an alkanolammonium sulfate. Embodiments of the present disclosure further include a method of conditioning water while maintaining comparable volatility in an agricultural formulation by adding at least one water conditioning agent to an agriculturally active ingredient, wherein the water conditioning agent comprises at least one alkanolamine sulfate.

Ionic liquid enhanced alkylation of iso-butane and 1-butene

The alkylation of iso-butane with 1-butene was catalyzed by triflic acid (TFOH) coupled with a series of protic ammonium-based ionic liquids (AMILs), and the addition of the AMILs dramatically enhanced the efficiency of TFOH for the alkylation reaction. Up to 85.1% trimethylpentanes (TMP) selectivity and 98 research octane number (RON) were achieved with the optimized TFOH/AMIL catalyst (75 vol.% triflic acid and 25 vol.% triethylammonium hydrogen sulfate), which were much better than that with the commercial H2SO4 catalyst (65% TMP selectivity, 97 RON) and pure triflic acid. The addition of AMILs increased the I/O ratio dissolved in the catalyst system and adjusted the acidity of the TFOH/AMILs catalyst system, which were highly beneficial to the alkylation reaction and resulted in high TMP selectivity and high RON.

Synthesis and Octopaminergic-agonist Activity of 2-(Arylamino)thiazolidines, 2-(Aralkylamino)-2-thiazolines, and Related Compounds

2-(Arylimino)thiazolidines (AITs) were synthesized by cyclizing monoethanolamine hydrogen sulfate with arylisothyocyanates in the presence of sodium hydroxide, or by the hydrochloric acid-catalyzed cyclization of thiourea. 2-(Aralkylamino)-2-thiazolines (AATs) and thiazines were obtained by the hydrochloric acid-catalyzed cyclization of the corresponding thioureas. 2-(2,6-Diethylphenylimino)oxazolidine was obtained by cyclodesulfurizing the corresponding thiourea with yellow mercuric oxide.The activity for stimulating adenylate cyclase prepared from ventral nerve cords of the American cockroach Periplaneta americana L. by these compounds was examined at 100 μM.AIT with a 2,6-diethylphenyl group was more active than its oxazolidine derivative.Greater enzyme activation appeared to result from short-chain alkyl rather than halogen substitution at the 2,6-positions of the aromatic ring of AITs.Increasing the chain length from methyl to ethyl in 2,6-disubstituted AIT caused an increase in the enzyme activation.There was a marked decrease in the enzyme activation after alkylating the ring nitrogen or C5, and after ring expansion of potent AIT and AAT.Thus, a certain degree of bulkiness and hydrophobicity at the 2- and 6-positions on the phenyl ring of AIT and at the N-terminal of AIT and AAT were favorable for activating the adenylate cyclase.