نتایج جستجو برای: potassium hydroxide koh

تعداد نتایج: 92112  

Journal: :Nordic Pulp & Paper Research Journal 2023

Abstract Pulping of rice straw was studied using mild nitric acid in conditions. Spent chosen as soil nutrient rather than followed by the liquor recovery. The treated with 11.03% at 90 °C for 3 h, yielded 53.09% pulp. Nitric pulp had high residual lignin and minerals. However, further treatment 7% potassium hydroxide reduced produced kappa number 20.36. papermaking properties KOH showed better...

2016
S. M. Paixão S. A. Ladeira T. P. Silva B. F. Arez J. C. Roseiro M. L. L. Martins L. Alves

The optimization of an alkaline pretreatment process for the delignification of sugarcane bagasse (SCB) to enhance the subsequent enzymatic hydrolysis was performed according to the Doehlert uniform shell design. In this experimental design, the effect of two factors—potassium hydroxide (KOH) concentration and autoclaving time at 121 C (1 atm)—on cellulose, hemicellulose, or the total polysacch...

Journal: :Buildings 2023

(1) The use of agro-industrial wastes, such as coffee husks, in cementitious materials is a viable way to achieve the sustainable development new construction materials. Traditionally, these wastes are applied after calcination, spending energy and financial resources. Furthermore, calcination contributes more environment. This interesting because treatments usually expensive than those using c...

Journal: :Eksergi 2022

Methylene blue (MB) is wastewater from the textile industry. This dye difficult to degrade naturally because it has a benzene group in its chemical chain. There are several ways reduce waste, one of economical by using adsorption. In this study, MB was adsorbed activated carbon post-anthesis male flower palm oil (PAMF) waste which potassium hydroxide (KOH). The adsorption process carried out at...

Journal: :Journal of physics 2021

Abstract The effect of aqueous electrolyte to the supercapacitor electrode performance made from Sugar palm ( Arenga pinnata ) fronds waste has been successfully analyzed. preparation activated carbon was used a combination chemical and physical activation methods. conducted using potassium hydroxide with 0.5 M concentration CO 2 gas. electrochemical sugar (SPFs) tested cyclic voltammetry metho...

2010
Nurjahan Begum A Iftikhar

Background: Suppurative keratitis is a common ophthalmic condition mostly caused by fungi. Apart from fungal culture, wet preparation using 10% Potassium hydroxide (KOH) for microscopic detection of fungal elements is a rapid and accurate method of laboratory diagnosis. Purpose: This prospective and cross sectional study was undertaken in order to evaluate the diagnostic sensitivity of wet prep...

Journal: :anatomical sciences journal 0
farzane sadeghi phd in anatomical sciences, toxicology center, tehran university, tehran, iran orish chinna nneka phd in anatomy, department of anatomy, faculty of basic medical sciences, university of port-harcourt, rivers state, orish chinna nneka phd in anatomy, department of anatomy, faculty of basic medical sciences, university of port-harcourt, rivers state, orish chinna nneka phd in anatomy, department of anatomy, faculty of basic medical sciences, university of port-harcourt, rivers state,

introduction: skeletal staining is an important part of anatomical studies which can evaluate macroscopic disorders in bones and cartilages development. the aim of the present article is to illustrate two distinct protocols by all details in order to stain skeletal system of the lab animals in all ages of their lives so it becomes easy for future studies in this field. methods: in this paper, s...

Journal: :Molecules 2017
Lei Wang Zetryana Puteri Tachrim Natsumi Kurokawa Fumina Ohashi Yasuko Sakihama Yasuyuki Hashidoko Makoto Hashimoto

Aliphatic diazirines have been widely used as prominent photophores for photoaffinity labeling owing to their relatively small size which can reduce the steric effect on the natural interaction between ligands and proteins. Based on our continuous efforts to develop efficient methods for the synthesis of aliphatic diazirines, we present here a comprehensive study about base-mediated one-pot syn...

Introduction: Skeletal staining is an important part of anatomical studies which can evaluate macroscopic disorders in bones and cartilages development. The aim of the present article is to illustrate two distinct protocols by all details in order to stain skeletal system of the lab animals in all ages of their lives so it becomes easy for future studies in this field. Methods: In this pa...

Journal: :Materials and Structures 2021

The test method AAR-8 is intended to be used for assessing the potential amount of alkalis released by aggregates in field concrete long-term. This done measuring amounts sodium and potassium ions from fine graded (< 4 mm) aggregate immersed (0.7 M) KOH NaOH solutions, respectively, at elevated temperature when contact with excess calcium hydroxide. It great importance realise that this acceler...

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