25723-52-8

Basic information

• Product Name: ETHYLENEDIAMINE SULFATE
• Synonyms: 1,2-ethanediamine,sulfate;1-2-DIAMINOETHANE SULFATE;ETHYLENEDIAMMONIUM SULFATE;ETHYLENEDIAMINE SULFATE;ethylenediamine, salt with sulphuric acid;1,2-Ethanediamine/sulfuric acid,(1:x);Ethylenediamine/sulfuric acid,(1:x);Ethylenediamine sulfate 98%
• CAS NO: 25723-52-8
• Molecular Formula: C2H10N2O4S
• Molecular Weight: 158.18
• EINECS: 247-209-5
• Mol File: 25723-52-8.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: ETHYLENEDIAMINE SULFATE(CAS DataBase Reference)
• NIST Chemistry Reference: ETHYLENEDIAMINE SULFATE(25723-52-8)
• EPA Substance Registry System: ETHYLENEDIAMINE SULFATE(25723-52-8)

Safety Data

• Hazardous Substances Data: 25723-52-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C2H8N2.H2O4S/c3-1-2-4;1-5(2,3)4/h1-4H2;(H2,1,2,3,4)

Upstream product

• 7664-93-9 sulfuric acid 
• 7732-18-5 water 
• 107-15-3 ethylenediamine 

Relevant articles and documents

Four new CuI/AgI-based coordination compounds containing 2-mercapto-5-methyl-1,3,4-thiadiazole: Synthesis, crystal structures and fluorescence properties

Effectively constructing CuI/AgI-based coordination polymers containing Hmthd ligands is a challenging work, here, four new coordination compounds [Cu(Hmthd)2Cl]n (1), [Cu3(mthd)2Br]n (2), [Ag(mthd)]n (3) and [Ag2(mthd)I]n (4) have been obtained by reactions of the corresponding metal salts and 2-mercapto-5-methyl-1,3,4-thiadiazole (Hmthd) ligand under solvothermal conditions. All the compounds were fully characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, thermalgravimetric analysis and powder X-ray diffraction. Compound 1 is a mononuclear coordination compound, in which two neutral Hmthd molecules and CuCl unit are coplanar. In compound 2, the anionic [CuBr(mthd)]22– units and one-dimensional coplanar cationic {[Cu2(mthd)]+}n chains are connected to each other to form a two-dimensional layered structure. In compound 3, two different one-dimensional puckered [Ag(mthd)]n chains are connected to each other to form a two-dimensional irregular layered structure, in which a (AgS)n chain constructed by staggered Ag3S3 rings is observed. Compound 4 is a two-dimensional double layer coordination framework containing a two-dimensional inorganic (Ag2IS)n double layer. Compound 4 shows the apparent yellow emission with the maximum at 551 nm while exciting at 333 nm, and displays sensitive luminescence quenching response to nitrobenzene with quenching constant (Ksv) of 5.07 × 103 M?1 and detection limit of 5.33 × 10?6 M. This research provides a new strategy to construct the CuI/AgI-based coordination compounds containing Hmthd ligands with extended structures through the synergistic effect of (mthd)- and halide ions.

Onium salts of sulfur-containing oxyanions resulting from reaction of sulfur(IV) oxide with aqueous solutions of 1,2-diamines and morpholine

Reaction products have been isolated from SO2–L–H2O–О2 systems (L = ethylenediamine, N,N,N′,N′-tetramethylethylenediamine, piperazine, and morpholine) as onium salts [H3NCH2CH2NH3]SO4, [(CH3)2NHCH2CH2NH(CH3)2]SO4, [(CH3)2NHCH2CH2NH(CH3)2]S2O6 ? H2O, [C4H8N2H4]SO3 ? H2O, [C4H8N2H4]S2O6, [C4H8N2H4]SO4 ? H2O, [O(C2H4)2NH2]2SO4 ? H2O. The prepared compounds have been characterized by X-ray diffraction analysis, X-ray powder diffraction, IR and mass spectroscopy.

Highly efficient and recyclable alkylammonium hydrosulfate catalyst for formation of bisphenol F by condensation of phenol with formaldehyde

Several C1-C4 alkylammonium hydrosulfates [R3NH][HSO4] have been conveniently prepared from the cheap raw materials sulfuric acid and alkylamines. Their acidities were measured by chemical titration and determined using UV-vis spectroscopy with a basic indicator 4-nitroaniline. The catalytic performance of these hydrosulfates for the condensation of phenol with formaldehyde to bisphenol F (BPF) was evaluated in detail on a batch reactor. The results indicated that the proposed catalysts are very active for such condensation due to its homogeneous catalysis characteristics in reaction conditions. Among the catalysts examined, [H3NCH2CH2NH3][HSO4]2 shows the best catalytic performance and it can achieve a complete conversion of formaldehyde, providing a higher than 90% selectivity for BPF under the optimal conditions. Furthermore, the catalyst can be recovered from the reaction mixture via an azeotropic distillation with cyclohexane to remove water and then filtration and used repeatedly six times almost without loss of activity, showing an excellent reusability. It is suggested that the present catalytic process combines the characteristics of a homogenized reaction and heterogenized recovery so might provide a highly-efficient, environmentally-friendly and low-cost route for synthesis of bisphenol F.

Gyration and Permittivity of Ethylenediammonium Sulfate Crystals

Ethylenediammonium sulfate (EDS) crystals were grown from aqueous solution and cleaved into thin (100-500 micron) plates. The 422 point group of EDS was confirmed by X-ray diffraction. The constitutive relations of EDS crystals were determined through generalized ellipsometry with an instrument that uses four photoelastic modulators (4PEM). The optical rotation at 500 nm, for example, was + 22.9°/mm along the optic axis and - 12.1°/mm perpendicular to the optic axis for the P41212 crystals. Enantiomorphous twins frequently form across the (001) plane. Mirrored halves must be separated by cleavage in advance of optical measurements. Chirality 28:460-465, 2016.

Ethane-1,2-diaminium hydrogen sulfate: Recyclable organocatalyst for onepot synthesis of β-amino ketones by a three-component Mannich reaction

Ethane-1,2-diaminium hydrogen sulfate was synthesised and characterised by NMR and elemental analysis techniques, and found to exhibit high catalytic efficiency towards one-pot Mannich-type reactions of ketones with aromatic aldehydes and aromatic amines in ethanol. This method has the advantages of mild conditions, availability of starting materials, compatibility with a variety of functionalities, and simple work-up procedures. This catalyst also shows good recyclability and reusability.

Structural and spectral characterization of a new non-centrosymmetric organic thiosulfate

Aqueous reaction of ammonium thiosulfate with ethylenediamine (en) results in the formation of the title compound (enH2)[S2O 3] (1) (enH2 = ethylenediammonium) in good yields. Compound 1 was characterized by analytical data, IR, Raman and NMR spectra, X-ray powder pattern and its crystal structure was determined. The structure of 1 which crystallizes in the non-centrosymmetric orthorhombic space group P2 12121, consists of two crystallographically independent (enH2)2+ dications and two unique thiosulfate anions, which are interlinked by three varieties of H-bonding interactions, namely N-H...O, N-H...S, and C-H...O. 1H and 13C NMR spectra reveal the purity of 1 while its transparent nature can be evidenced from the UV-Vis-NIR spectral data. In compound 1 which exhibits SHG property, the infrared and Raman spectra confirm the presence of the organic dication and the thiosulfate anion.

PROCESS FOR ISOLATION OF AN ORGANIC AMINE

The invention relates to a process for the isolation of an organic amine from a composition comprising the organic amine and an acid, or a salt of the organic amine and the acid, wherein the process comprises steps wherein ammonia or hydrazine is added to the composition thereby forming a multi-phase system comprising an organic amine -rich phase and an acid-rich phase, the organic amine-rich phase and the acid-rich phase obtained in step (i) are separated, and the organic amine is isolated from the organic amine -rich phase.