Magnetic stirrer

stirring for 10 min more. The Aloe vera gel– starch blend film or coating were prepared as mentioned before, then finally, the Aloe vera gel was also added to reach the volume into 400 ml. All components were mixed on a plate equipped with a magnetic stirrer for 10 min. The film-forming solutions were poured and spread evenly over a Teflon Plate and dried at room temperature for 24 h after which it was…

Chemicals Congo red (CR) an anionic dye (C32H22N6Na2O6S2 and Molar Mass as 696.7 gmol-1) used in the present work (Fig.1a) and zinc acetate dihydrate were purchased from LOBA Chemie Company, India. Methylene blue (MB) a cationic dye (C16H18N3SCl and Molar Mass of 319.85 gmol-1) as shown in Fig.1b, was purchased from Oxford laboratory reagent Co. Zinc acetate used for the preparation of nanoparticles ZnO and sodium hydroxide were purchased from Biotech laboratory chemicals company. Ethyl alcohol…

The mixed powders are sinter at two different temperatures which is about 1000°C and 1100°C. The mixing process was carried out by using hot plate and magnetic stirrer. The pure hydroxyapatite were mixed at 2 hours with distilled water and for another two hours the sodium alginate was put into the solution to completely mixed to produce the suspension. The suspension powder has to left overnight to get the…

A stir bar was added into the flask containing isoborneol, and the flask was attached to a ring stand to rest on top of a magnetic stirrer device. In consistent drops, 0.63 mL of glacial acetic was added and the reaction had a pH of 2, which was measured with pH indicator paper. Then, 0.50 mL of 10% w/v sodium hypochlorite (NaOCl) solution was added, and the reagents were reacted…

First, a 2M concentrated stock solution was made. Ice cold deionized (DI) water is taken. TiCl4 vapor is extremely dangerous for inhalation. In an inert gas environment TiCl4 was added slowly to water in an ice bath while being stirred with a magnetic stirrer. A clear transparent solution indicates a good workable solution. The solution was stored in a freezer. Second, the stock solution was diluted by adding it to cold DI water. Fresh diluted solution was made before each TiCl4 treatment.…

FDE 310 Food Materials Laboratory Report Determination of Reducing Sugar Content INTRODUCTION The objectives of this experiment is to determine reducing sugar content of food sample by performing Fehling method and to identify invert sugar content of sugars by using polarimetry and also to learn property of invert and reducing sugar. Carbohydrases represent a large class…

Use a 20ml volumetric pipet to measure the required volume of decarbonated soda and put it in a 250ml beaker. Add distilled water using a graduated cylinder. Place pH probe in the soda solution. Put beaker on a magnetic stir plate (keep probe away from the stirrer). Fill buret and align the tip right above the drop counter. Record the initial volume of NaOH (Vi). Turn on the stir plate to 300rpm and program Measurenet. Carefully open stopcock so it drips at 1 drop per second. Stop the…

New method of synthesis of oligoetherols with carbazole ring Renata Lubczak Abstract: The new method of synthesis of multifuntional oligoetherols with carbazole ring suitable for obtaining the polyurethane foams of enhanced thermal resistance was presented. At the first step of the synthesis the carbazole was reacted with excess glycidol to obtain the product of (n +1) functionality, where n is number of equivalents of glycidol reacted with carbazole. Carbazole reacts with glycidol without…

according to the method by Barretina et al., (Barretina et al. 2012). 0.25g pectin was wetted with 5ml ethanol and topped to 100mL mark in a with deionized water, thereafter six drops of phenolphthalein was added and the content stirred on a plate stirrer with magnet to fully solubilize pectin.. The solution was titrated against 0.1M NaOH solution till PH 7.5 was attained (when the colour just started to turn pink). The following equation was applied to establish equivalent weight: Equivalent…

Materials and Methods 4.1 Materials and equipments Table no. 4.1: Materials/Chemicals used in the project work S.No. Material/Chemicals Property Source 1. Tinidazole Pure drug Trozan Pharma 2. Guar gum Polymer Central drug house Pvt. Ltd. New Delhi 3. Starch Disintegrant Nice Chemicals 4. Micro crystalline cellulose Diluent, Disintegrant Loba Chemie, Mumbai,India 5. Talc Lubricant Nice Chemicals Pvt. Ltd. 6. Acetone Solvent Nice Chemicals Pvt. Ltd. 7. Potassium dihydrogen phosphate…