Connect the temperature sensor to your computer and insert it into the container, so that its measuring element (its tip) stays immersed in the substance even after melting. Show More. If we consider the parts of the graph in which the temperature increases to be linear, we can observe that the gradients of these dependencies are different – the temperature of liquid pentahydrate rises more slowly than of solid pentahydrate. Food Microbiol. Start the data collection and at the same time ignite the burner and set it to a very small flame. Thermal Conductivity of Plastic and Metal II. Melting Point Density Bulk Density Solubility Special Grade pH Value Physical Form. Selling Leads |
Do not touch the container or the stand right after the measurement. It is not necessary to monitor this experiment. This experiment typically takes a relatively large part of a lesson (e.g. of water. MSDS/SDS Database Search |
Thermal Conductivity of Plastic and Metal I. Its melting point is 48.3 ̊C (118.94 ̊F), boiling point 100 ̊C (212 ̊F), density 1.67 g/cm3. Such temperature behaviour is indicated in the graph in Fig. Fix the container in the laboratory stand, so that the bottom of the container is about 15 – 20 cm far from the burner. However, during this experiment, you can attend to other activities – instruction, examination etc. Sodium thiosulfate pentahydrate is a hydrate consisting of sodium thiosulfate with 5 mol eq. check more sodium thiosulfate pentahydrate price, Home |
Choose required ranks and required tasks. Articles of sodium thiosulfate pentahydrate … It has a role as an antidote to cyanide poisoning, a nephroprotective agent and an antifungal drug. The substance is not subject to any P-statements or H-statements. Formula: Na2S2O3.5H2O. J. The melting point generally depends also on the pressure and is affected by additives – e.g. Articles of sodium thiosulfate pentahydrate are included as well. Disclaimer, Copyright © 2018 ChemSrc All Rights Reserved, sodium thiosulfate pentahydrate structure. To determine the melting point of the pentahydrate we focus on the middle part of the graph, when the pentahydrate temperature, despite continuing supply of heat, remains constant – the substance is melting. Na2S2O3.5H2O is a white crystal at room temperature. However, there is a risk that the temperature stabilization will not be as distinctive, or the middle part of the graph will be much shorter. one half). Chemsrc provides sodium thiosulfate pentahydrate(CAS#:10102-17-7) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Chloroxyanion Residue Quantification in Cantaloupes Treated with Chlorine Dioxide Gas. Product Classification |
The … Previous studies show that treatment of cantaloupes with chlorine dioxide (ClO2) gas at 5 mg/liter for 10 min results in a significant reduction (P < 0.05) in initial microflora, an increase in shelf ... Int. Ultrafine Iron Pyrite (FeS₂) Nanocrystals Improve Sodium-Sulfur and Lithium-Sulfur Conversion Reactions for Efficient Batteries. 1. When all of the substance changes to liquid, its temperature begins rising again thanks to supplying heat. table salt added to a mixture of ice and water extracts the heat required for its dissolution from the mixture and significantly decreases the melting point of ice. Quality and shelf-life prediction for retail fresh hake (Merluccius merluccius). Heat Dissipation Through a Copper Plate or How to Speed up Cooling of Tea, Melting Point of Sodium Thiosulfate Pentahydrate, Dependence of Boiling Point of Water on Pressure, Writing with Alcohol Based Highlighters and Markers, Dependence of Evaporation Rate of Liquid on Liquid Surface Area, Evaporation of Water and Ethanol (with Thermal Imaging Camera), Dependence of Evaporation Rate of Liquid on Removing Fumes from above Its Surface, When Carbon Dioxide is Lighter Than Air (Temperature Impact on Gas Density), Capillary action between two glass plates. Fish quality has a direct impact on market price and its accurate assessment and prediction are of main importance to set prices, increase competitiveness, resolve conflicts of interest and prevent fo... Nanocrystals with quantum-confined length scales are often considered impractical for metal-ion battery electrodes due to the dominance of solid-electrolyte interphase (SEI) layer effects on the measu... Get all suppliers and price by the below link: sodium thiosulfate pentahydrate suppliers, Reference only. sodium thiosulfate pentahydrate MSDS(Chinese). Therefore, we can assume that the specific heat capacity of liquid pentahydrate is grater that the specific heat capacity of solid pentahydrate (similar effect can be observed with water and ice). This is one of the basic physical characteristics of crystalline substances – amorphous substances change to liquid state by gradually decreasing their viscosity. If you want to accelerate the measurement, it is possible to intensify the heating of the pentahydrate, or you can place the container nearer to the flame. Tools and equipment usually found at schools, Change in Internal Energy by Performing Work: Nail Hammering, Conversion of Kinetic Energy into Internal Energy: Blow with a Mallet, Conversion of Kinetic Energy to Internal Energy: Falling Weight, Experimental determination of Specific Heat of Water, Comparing Specific Heat of Water and Vegetable Oil. The temperature at which a crystalline substance changes its state to liquid is called a melting point tm. It is evident that in the first part of the measurement the temperature increase is approximately linear, then the temperature stabilizes and at the end of the measurement, it begins to increase again. There is a danger of burning! Sodium Thiosulfate Pentahydrate. After the measurement, we obtain the following graph of temperature versus time (Fig. Stable. Molar Mass: 248.1841. It is soluble in water. Journals |
Sodium thiosulfate pentahydrate is a white crystalline substance with a melting point between 48 °C and 49 °C) which makes it ideal for this experiment. This arrangement is shown in Figure 2. Chemsrc provides sodium thiosulfate pentahydrate(CAS#:10102-17-7) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. About Us |
Shanghai Jizhi Biochemical Technology Co., Ltd, sodium,1-(2-sulfonatosulfanylethylamino)octane, sodium,2-methanidyloxolane,sulfurothioic O-acid, Sodium hexamethylene-1,6-bisthiosulfate dihydrate. If you use an alcohol burner or a propan-butan burner, make sure that there is enough fuel for 25 minutes burning before starting the measurement. Buying Leads |
Sodium thiosulfate pentahydrate is a white crystalline substance with a melting point between 48 °C and 49 °C) which makes it ideal for this experiment. The container, however, is heated by the same heat input. Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter, disodium,dioxido-oxo-sulfanylidene-λ6-sulfane,pentahydrate. 208 , 65-74, (2015). When the crystalline substance is being heated, its temperature stops increasing after reaching the melting point; all supplied heat is used to break the structure of the crystalline lattice. Launch the programme for data collection from the temperature sensor and set the measurement time for at least 25 minutes. Stop the measurement after the temperature of the sodium thiosulfate pentahydrate exceeds 60 °C. Sodium thiosulfate pentahydrate, glass container or tube, laboratory stand with brackets, temperature sensor cooperating with a computer (in the model experiment the Vernier Go!Temp sensor was used), burner or candle, matches. The melting point tm can be estimated from the y axis as approximately 48 °C. Comparing Thermal Conductivity of Copper, Aluminium and Brass. The table of contents will list only tasks having one of the required ranks in corresponding rankings and at least one of the required tags (overall). Do not change the intensity of the flame during heating. If you wish to filter only according to some rankings or tags, leave the other groups empty. Biologically Active Compounds |
The goal of this experiment is to measure the temperature of sodium thiosulfate pentahydrate during heating and estimate the melting point of the substance. Service |
Incompatible with strong acids, iodine, mercury. Pour about 20 grams of sodium thiosulfate pentahydrate in a glass container (tube). 3). After the measurement, the melted sodium thiosulfate pentahydrate can be disposed by pouring it into the drain.