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Chemical Stability of Petrichorins
The Journal of Organic Chemistry, 2022The structure of petrichorin C1 (4) converted from petrichorin C (3) was determined using NMR spectroscopy and X-ray crystallography. The chemical stability of petrichorins A and C (1 and 3) was investigated by NMR spectroscopy, X-ray crystallography, and calculations.
Chunshun Li +6 more
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Chemical Passivation Stabilizes Zn Anode
Advanced Materials, 2022AbstractAqueous zinc ion batteries are an attractive option for grid‐scale energy storage, which is vital to the integration of renewable energy resources with the electric energy infrastructure. The cycling stability of aqueous ZIBs is determined by the electrochemical reversibility of Zn anode, which is often deteriorated by its corrosion and ...
Pan He, Jiaxing Huang
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Chemical Stabilization of Cartilage Matrix
Journal of Surgical Research, 1994Severe destruction of articular cartilage in osteoarthritis manifests clinically when repair processes cannot keep up with the catabolic processes. Loss of proteoglycans, which give the tissue its ability to undergo reversible deformation, precedes and probably contributes significantly to breakdown of the matrix in the most superficial layers of ...
A, Kahn +4 more
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2023
Stability of drug is the capacity of the pharmaceutical dosage form to maintain the chemical, physical, microbial and therapeutic properties during the time of storage and usage by the patient. Stability studies are done to determine the expiry date of products and to choose formulations and container closure techniques that are appropriate in terms of
Miss Ashu, Kavita Sapra
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Stability of drug is the capacity of the pharmaceutical dosage form to maintain the chemical, physical, microbial and therapeutic properties during the time of storage and usage by the patient. Stability studies are done to determine the expiry date of products and to choose formulations and container closure techniques that are appropriate in terms of
Miss Ashu, Kavita Sapra
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STABILITY CRITERIA FOR CHEMICAL REACTORS
IFAC Proceedings Volumes, 1992Abstract Stability criteria are presented for six most common types of chemical reactors: a batch reactor, a continuous flow stirred tank reactor, a tubular flow reactor, a fluidized bed reactor, a tubular catalytic reactor and a tubular autothermal reactor with internal or external heat exchange. The criteria may be used to determine the boundary of
V. Balakotaiah, D. Kodra
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Complex Chemical Stabilization of Dichlorodiphosphene
Angewandte Chemie International Edition, 2001In contrast to the cis configuration of N2 F2 , the analogous phosphorus subhalogenides, P2 X2 (X=F, Cl) adopt a trans configuration according to density functional theory calculations. Now for the first time dichlorodiphosphene has been stabilized in the coordination sphere of transition metals in the form of complex 1.
Ulf, Vogel +2 more
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Stability Phenomena in Chemical Reactors
Berichte der Bunsengesellschaft für physikalische Chemie, 1980AbstractSome important types of non‐linear phenomena occuring in chemically reacting systems are explained by means of some single examples of chemical reactors. Multiple steady‐states exhibiting a distinct behavior of ignition and extinction are in the category of these phenomena.
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The chemical stability of drugs plays a pivotal role in the pharmaceutical industry, impacting drug development, manufacturing, storage, and ultimately, patient safety. This abstract explores the key aspects of chemical stability, emphasizing its significance in drug formulation and quality control.
Sandeep Mukati +3 more
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Sandeep Mukati +3 more
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1981
Most drugs are subject to some form of chemical decomposition, particularly when formulated as liquid dosage forms. Some of the consequences of degradation are that the aged medicinal preparation no longer has the desired pharmacological potency. It may also exhibit physical manifestations of decomposition such as the discolouration that often follows ...
A. T. Florence, D. Attwood
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Most drugs are subject to some form of chemical decomposition, particularly when formulated as liquid dosage forms. Some of the consequences of degradation are that the aged medicinal preparation no longer has the desired pharmacological potency. It may also exhibit physical manifestations of decomposition such as the discolouration that often follows ...
A. T. Florence, D. Attwood
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Chemical Stabilization of Laser Dyes.
1984Abstract : Irradiation of ethanol solutions of coumarin laser dye lasers produces products which absorb at the lasing wavelength. This results in attenuation of dye laser output through interference of stimulated emission. A major photoprocess which produces material which absorbs at the lasing wavelength is dye sensitized solvent oxidative ...
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