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Magnesium Oxide Light Powder 250gm
Original price was: KSh2,500.00.KSh2,300.00Current price is: KSh2,300.00.
Malachite Green 25gm
Original price was: KSh1,500.00.KSh1,200.00Current price is: KSh1,200.00.
Magnesium Ribbon 25gm
Original price was: KSh1,200.00.KSh900.00Current price is: KSh900.00.
Magnesium ribbon is a common laboratory material made from pure magnesium. It is typically supplied in thin strips or coils, making it easy to cut and handle. Magnesium ribbon has several uses and is involved in various types of experiments due to its distinct chemical and physical properties.
Description
Uses of Magnesium Ribbon
1. Combustion Experiments
- Demonstration of Combustion: Magnesium ribbon is often ignited to demonstrate a combustion reaction. It burns with an intense white flame, forming magnesium oxide (MgO) and releasing a significant amount of light and heat.
2Mg+O2ā2MgO
- Illustrating Exothermic Reactions: The burning of magnesium is a clear example of an exothermic reaction, showcasing the release of energy in the form of light and heat.
2. Chemical Reactions
- Reaction with Acids: Magnesium reacts vigorously with acids like hydrochloric acid to produce hydrogen gas and magnesium chloride (MgClā). This reaction is used to study reactivity and gas production.
Mg+2HClāMgCl2+H2
- Single Displacement Reactions: Magnesium can displace less reactive metals from their compounds in solution, illustrating the activity series of metals.
3. Thermite Reactions
- Ignition Source: Due to its high burning temperature, magnesium ribbon can be used to ignite thermite mixtures, which involve the reaction of metal oxides with aluminum to produce molten metal and a great deal of heat.
4. Synthesis of Magnesium Compounds
- Formation of Magnesium Hydroxide: When reacted with water, magnesium forms magnesium hydroxide and hydrogen gas, which can demonstrate the reactivity of magnesium with water.
Mg+2H2OāMg(OH)2+H2
- Production of Magnesium Sulfate: By reacting magnesium with sulfuric acid, magnesium sulfate (Epsom salt) can be produced, which is used in various applications.
Mg+H2SO4āMgSO4+H2
5. Educational Demonstrations
- Redox Reactions: Magnesium is used to demonstrate oxidation-reduction reactions, showing the transfer of electrons between substances.
- Stoichiometry: It can be used to illustrate stoichiometric principles in chemical reactions by measuring the reactants and products.
6. Energy Studies
- Heat and Light Production: The intense heat and light produced by burning magnesium can be used to study energy transformations and the characteristics of different types of energy.
7. Analytical Chemistry
- Gravimetric Analysis: Magnesium can be used in gravimetric analysis, where its reaction with other substances is used to isolate and weigh a product, helping determine the composition of a sample.
Safety Considerations
- Eye Protection: Always wear proper eye protection, such as safety goggles, when burning magnesium to protect against the bright light.
- Fire Safety: Use appropriate fire extinguishers (Class D) for metal fires. Do not use water or COā extinguishers on burning magnesium.
- Handling: Handle with care to avoid skin contact and inhalation of dust or fumes.
Storage and Disposal
- Storage: Store magnesium ribbon in a dry, cool place away from moisture and oxidizing agents.
- Disposal: Neutralize small amounts with dilute acids before disposal. Follow local hazardous waste disposal regulations for larger quantities.
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