Dan juga untuk mencegah terbentuknya garam FeSO4 pada suhu rendah. 3. Reaksi antara NH4OH + H2SO4 bagaimana reaksinya? Keadaan reaksinya?. EXPERIMENT 2 Synthesis of Mohr Salt 14 April A. Objective Study the Mohr salt from the reaction between the iron with sulfuric acid and.

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After cooled, the mixture solution is filtered to separate the solution with Mohr salt crystals.

Sintesis Garam Mohr

Bijaksana, The properties of very smooth iron is pyrophoric. Crystal structure which is formed of a liquid, depends on the its fluid chemistry, when the solidification conditions and ambient pressure. They are more stable than the salt, iron II. Mkhr ions make Mohr salt solution slightly acidic, which slows down the oxidation process.

Color and structure of H2SO4: Views Read Edit View history. DiscussionIn this practicum, conducted the experiments of Mohr salt synthesis. This is a standard and one of safety lab procedures. Weight of Mohr salt as a product: The green color is caused by the presence of Fe II. Then the solution is cooled in the refrigerator for 3 days in order to form Mohr salt crystals.

Sintesis Garam Mohr Download Report. As stated by its name, magnetite is attracted by a magnet. Laporan Pembuatan garam Mohr Chemistry of the Elements 2nd ed. In other projects Wikimedia Commons.


Magnetic minerals in the upper third digunakansebagai also dyes and mixtures filler for the paint as well as the basic material for permanent industrimagnet. Retrieved from ” https: Iron can also be magneted.

The purpose of the use of iron powder is to accelerate the reaction, because the reaction rate is proportional with the surface of a substance. The purpose of this evaporating process the evaporate of ammoni solution which may not react with sulfuric acid solution. So that this reaction produced light green solution.

Ammonium iron(II) sulfate – Wikipedia

This purity levels is obtained from the calculation result weight of Mohr salt crystal from the experiment result: This is done to prevent crystallization solution at a low temperature and to accelerate the reaction. After all part of iron powder are dissolved, then filter the solution and evaporate the filtrate in a porcelain cup, until forming mour light green solution and there are crystal on its surface. Ions and complexes combined colored old tongs are also common.

Published on Dec View 36 Download 0. Sulfuric acid is generally added to the solution to reduce the oxidation of iron. If the solution containing chloride, the color becomes stronger.

Mohr salt was prepared by mixing both sulfate salts of iron II and ammonium, wherein each salt is dissolved to saturation and the iron II added a little sour. Metal soluble in mineral acids. Then a solution of iron II should be slightly acidic when you want to keep for a long time.


Sintesis Garam Mohr

PT Kalman Media Pustaka. HHH Thus obtained Mohr salt crystals with monoclinicic shape and has bluish-green color due to contained Fe with NH4 2SO4 which form complex compounds. Magnetite, for example, can be used as a garwm material for dry ink toner on a photo-copy machines and laser printers, while garwm is the main ingredient for tape-cassette. Color and structure of NH3: This oxidation occurs more readily at high pH.

The less acidic the solution, the more obvious this effect, in a neutral or even alkaline oxygen from the atmosphere will oxidize iron II.

The first step that we do in this experiment is make solution A, solution A is made by neutralizing the sulfuric acid solution with ammonia solution, so that this reaction produced the solution of ammonium sulfate. Melts at C. Petunjuk Praktikum Kimia Anorganik.

But it is not used as a mineral ore as remnants of trace sulfur difficult to remove. By using this site, you agree to the Terms of Use and Privacy Policy.