Herein, we report the sodium-chloride-assisted synthesis of nitrogen-doped, cube-like hierarchical porous carbon shells (N-C-HPCS) activated by one-step combustion waves and their application in high-performance supercapacitor electrodes (Fig. 1).Freestanding films comprising core–shell hybrids of NaCl templates and …

Amorphous calcium carbonate (ACC) is a metastable phase often observed during low temperature inorganic synthesis and biomineralization. ACC transforms with aging or heating into a less hydrated form, and with time crystallizes to calcite or aragonite. ... A 0.02 M sodium carbonate solution was prepared by mixing 0.424 g of Na 2 CO 3 …

The fundamental understanding of sodium storage mechanisms in amorphous carbon is essential to develop high-performance anode materials for sodium-ion batteries. However, the intrinsic relation between the structure of amorphous carbon and Na+ storage remains to be debated due to the difficulty in controlling and characterizing the local atomic …

A process for the preparation of amorphous montelukast sodium comprising - Dissolving montelukast sodium in organic solvent(s) - Removing the insolubles (if any) - Removing the solvent either by vacuum drying or by spray drying Which is characterized by the typical X-ray diffractions as shown in Fig.l. 5. A process as claimed in claim 1 ...

A stable pharmaceutical composition comprising of 30-50% w/w of amorphous canagliflozin, 30-50% w/w of lactose and microcrystalline cellulose, 10-20% w/w of croscarmellose sodium, 1-3% w/w of polysorbate 80, 0.5-2% w/w. of magnesium stearate and a coating agent consisting of hydroxypropyl methyl cellulose; wherein the …

Such excellent electrochemical performance is attributed to an electrochemically induced in-situ crystalline-to-amorphous (CTA) transformation …

By definition, in ASDs, the drug homogenously disperses in an excipient carrier in amorphous state. The amorphous form of API enhances solubility by lacking …

Learning Objectives. To understand the difference between a crystalline and an amorphous solid. Crystalline solids have regular ordered arrays of components held together by uniform intermolecular forces, whereas the components of amorphous solids are not arranged in regular arrays. The learning objective of this module is to know …

The fundamental understanding of sodium storage mechanisms in amorphous carbon is essential to develop high-performance anode materials for sodium-ion batteries. However, the intrinsic relation …

Abstract. Amorphous material is one kind of nonequilibrium material; its characteristic of atomic arrangement is more like liquid and has no long-range …

The sodium is mostly extracted after one cycle to 1.5 V, which results in a dominant signal at −10 ppm for Na in the residual electrolyte. In sum, the amorphous sodiation/desodiation of P-/Sn-based anode material is clearly characterized by the combination of solid-state 23 Na and 31 P NMR.

The invention relates to a bilayer tablet comprising metformin in the form of the free base or in the form of pharmaceutically acceptable salts, crystalline polymorph thereof and amorphous dapagliflozin, and at least one pharmaceutically acceptable excipient, wherein the tablet is free of magnesium stearate. Also, the combination has an immediate release …

Here, we explore the Na-Y-Zr-Cl compositional space and show that reduced NaCl molar content results in the formation of nanocrystalline and amorphous …

Metrics. In this work, silicon/carbon composites for anode electrodes of Li-ion batteries are prepared from Elkem's Silgrain® line. Gentle ball milling is used to reduce particle size of ...

High Vacuum was applied for 25-30 min to remove traces of solvent at 65-70°C to obtained mass. The mass was cooled to 20-25°C. Cyclohexane (500 ml) was added to mass at 20-25°C. The mixture was stirred, filtered, washed and dried to obtain amorphous Warfarin sodium. Purity ~ 99.5 % (by HPLC) Yield (w/w) ~ 0.80-0.90.

Despite the potential for affordable, safe, and reliable energy storage offered by sodium solid-state batteries, hurdles remain concerning manufacturing and their performance at room temperature. Here, we explore the Na-Y-Zr-Cl compositional space and show that reduced NaCl molar content results in the formation of nanocrystalline and …

Co-amorphous systems comprising low-molecular weight drugs and co-formers constitute an interesting approach to optimize pharmaceutical performance of drugs with low aqueous solubility. Within the different types of co-amorphous systems, the combination of a drug with its own salt may be an attractive formulation option due the …

montelukast sodium results in amorphous or sticky material in the absence of the use of any seed crystal; for which no preparation method is disclosed. ... Crystalline Form Dl of montelukast sodium with an XRPD pattern comprising interplanar spacing (d) values substantially 5.36, 5.22, 4.77, 4.18, and 4.07 (A). 3. Crystalline Form Dl of ...

Amorphous and nanocrystalline halide solid electrolytes with enhanced sodium-ion conductivity. DOI: 10.1016/j.matt.2023.12.028. Authors: Phillip Ridley. …

The invention is directed to overcome the problems associated with the formation of rabeprazole sodium, i.e. formation of (2-({[4-(3-methoxypropoxy)-3-methylpyridin-2-yl] methyl}sulfonyl)-1H …

Sacubitril sodium is disclosed in EP0555175. The process to prepare the sodium salt is ... Rework of example 5 in our laboratory resulted in the isolation of amorphous valsartan disodium. ... (XRPD) comprising characteristic peaks at the following 2 theta (6 0.2) angles: 4.70°, 9.29°, 22.34°, measured using a Cu Kα ...

The novel amorphous form of the present invention is useful for the treatment of retroviral infections including, in particular, human immunodeficiency virus (HIV) infection (e.g. HIV-1 infection). The present invention thus provides pharmaceutical compositions comprising amorphous dolutegravir sodium and a pharmaceutically acceptable carrier.

Mixture of starch and amorphous sodium polyborate (SPB) is found to show high flame retardancy, when its aqueous solution is deposited and dried on organic polymer materials such as polyethylene terephthalate (PET) nonwoven, rigid polyurethane (RPU) , and polypropylene (PP) nonwoven. The PET nonwoven (10 mm thickness) …

An composite comprising amorphous carbon nitride (ACN) and zinc oxide is derived from ZIF-8 by pyrolysis. The composite is a promising anode material for sodium-ion batteries. The nitrogen content of the ACN composite is as high as 20.4 %, and the bonding state of nitrogen is mostly pyridinic, as determined by X-ray photoelectron …

The present invention provides a process for preparing the amorphous rabeprazole sodium. The process comprises the following steps: (a) Contacting rabeprazole sodium compound with a solvent system to thereby obtain a clear solution under a first temperature, wherein said solvent system is a mixture of at least two categories of organic solvents; …

the present invention provides a method of preparing amorphous telmisartan sodium comprising: providing a mixture of telmisartan C 1 -C 4 alkylester, a first solvent and an inorganic base; heating the mixture to a temperature of from about 65 0 C to about 90°C; combining the mixture with a second solvent and removing the solvents to obtain ...

The solubility of amorphous sodium aluminosilicate solid and zeolite A crystals in sodium hydroxide and nitrated/nitrited sodium aluminate solutions has been determined at temperatures of (303.15 ...

In another aspect, also provided are processes for preparing polymorphic Form A of rosuvastatin sodium comprising the steps of: a) contacting rosuvastatin methyl ammonium salt of Formula II with one or more acids to form rosuvastatin acid of Formula III; ... Anhydrous amorphous form of fluvastatin sodium US7312329B2 (en) * : …

1. A process for the preparation of amorphous Warfarin sodium comprising steps of: i) treating Warfarin sodium clathrate with methanol to obtain a solution; ii) evaporating methanol from solution obtained in step (i) to obtain residue; iii) adding cyclohexane to the residue obtained in step (ii);

Here, ΔG T ° Amorphous,Crystalline is the energy difference between the crystalline and the amorphous state, R is the gas constant, T is the absolute temperature of concern and σ T Amorphous σ T Crystalline is the solubility ratio of the two forms. It follows from Eq. (2) that the amorphous form has a higher theoretical solubility as …