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Aceto Orcein
Original price was: KSh2,100.00.KSh2,000.00Current price is: KSh2,000.00.
Ceramic Stain Remover(1 Litre)
Original price was: KSh3,000.00.KSh2,200.00Current price is: KSh2,200.00.
Bio-Waste Digester Kit (1 Liter)
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Silica gel blue self indicating 25kg
Silica gel blue self-indicating is a type of desiccant made from a form of silicon dioxide that appears blue when it is dry and changes color to pink when it becomes saturated with moisture. The self-indicating feature allows the user to easily identify when the silica gel needs to be replaced or recharged. It is commonly used in packaging, electronics, and other industries to prevent moisture damage to products during storage and transportation.
Sodalime with indicator 500gm
Sodalime with an indicator is a substance often used in medical and laboratory settings, primarily for the absorption of carbon dioxide (COā) and certain other acidic gases. The indicator in sodalime serves a crucial function by visually signaling when the sodalime has been exhausted and can no longer effectively absorb COā. Hereās a detailed look at its components, functionality, and use:
Components of Sodalime
- Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH): These strong bases are the active components that react with COā to form carbonates and water.
- Calcium Hydroxide (Ca(OH)ā): This provides a medium in which the reaction takes place and also participates in the COā absorption process.
- Water (HāO): Necessary for the chemical reaction.
- Indicator Dye: Changes color based on the pH level, signaling when the sodalime is no longer effective.
Chemical Reaction
The primary reaction for COā absorption can be summarized as: CO2+H2OāH2CO3text{CO}_2 + text{H}_2text{O} rightarrow text{H}_2text{CO}_3CO2ā+H2OāH2CO3ā H2CO3+2NaOHāNa2CO3+2H2Otext{H}_2text{CO}_3 + 2text{NaOH} rightarrow text{Na}_2text{CO}_3 + 2text{H}_2text{O}H2CO3ā+2NaOHāNa2āCO3ā+2H2āO Secondary reactions may involve calcium hydroxide: Na2CO3+Ca(OH)2ā2NaOH+CaCO3text{Na}_2text{CO}_3 + text{Ca(OH)}_2 rightarrow 2text{NaOH} + text{CaCO}_3Na2āCO3ā+Ca(OH)2āā2NaOH+CaCO3ā
Sodium Metal 100gm
Chemical Formula: Na
Appearance: Sodium metal is a soft, silvery-white, highly reactive metal. It is shiny when freshly cut but tarnishes rapidly in air due to oxidation.
Physical Properties:
- Atomic Number: 11
- Density: 0.97 g/cmĀ³ at 20Ā°C
- Melting Point: 97.79Ā°C (207.02Ā°F)
- Boiling Point: 883Ā°C (1621Ā°F)
- Hardness: Sodium is soft enough to be cut with a knife.
- Reactivity: Sodium is highly reactive, especially with water, producing sodium hydroxide and hydrogen gas. This reaction is exothermic and can be explosive. 2Na+2H2Oā2NaOH+H22Na + 2H_2O ā 2NaOH + H_22Na+2H2āOā2NaOH+H2ā
- Oxidation: In air, sodium rapidly oxidizes, forming a layer of sodium oxide (Na_2O).
Sodium Sulphate Anhydrous 500g
Sodium sulfate anhydrous, also known as anhydrous sodium sulfate or disodium sulfate, is a chemical compound with the formula Na2SO4. It is a white, crystalline powder that is soluble in water.
Here are some key properties of sodium sulfate anhydrous:
- Chemical formula: Na2SO4
- Appearance: White, crystalline powder
- Odor: Odorless
- Solubility: Soluble in water, insoluble in most organic solvents
- Melting point: 884 Ā°C (1623 Ā°F)
- Boiling point: 1400 Ā°C (2552 Ā°F)
- Hygroscopic: Yes (absorbs moisture from the air)
Sodium Thiosulphate Pentahydrate
Analytical Reagents, Disinfectants and Biocides, Excipients, Leaching Agents, Wastewater Treatment Chemicals
Sodium thiosulfate (Na2S2O3) is an inorganic compound that is commonly used as a photographic fixer, as well as in medical and industrial applications. It is a white crystalline powder that is soluble in water and has a mild odor. In photography, sodium thiosulfate is used to remove unexposed silver halide from photographic prints and negatives, making the image permanent. In medicine, it is used as an antidote for cyanide poisoning, and in industrial applications, it is used as a reducing agent, a dechlorinating agent, and in water treatment processes.
Zinc Carbonate 500gm
Analytical Reagents, Antioxidants, Catalysts, Excipients, Fertilizers, Wastewater Treatment Chemicals
Zinc carbonate (ZnCOā) is a white, odorless powder that occurs naturally as the mineral smithsonite. Itās used in various applications including as a pigment in paints, a filler in rubber, and as a dietary supplement. Chemically, it's known for its ability to decompose upon heating to release carbon dioxide and zinc oxide. In the medical field, it's employed in topical preparations to treat skin conditions. Overall, zinc carbonate is valued for its versatility and effectiveness across different uses.
Zinc sulphate 500gm
Analytical Reagents, Catalysts, Excipients, Fertilizers, Nutrient Supplements, Wastewater Treatment Chemicals
Zinc sulphate is an inorganic compound that appears as a colorless crystalline solid or white powder. It is highly soluble in water and has a slightly astringent taste. This compound is often used in various industrial applications, including the production of rayon, as a preservative for leather and wood, and in the manufacturing of lithopone, a white pigment.
In agriculture, zinc sulphate serves as a zinc supplement for animal feeds and fertilizers to prevent zinc deficiency in crops. It is also utilized in medicine as an astringent, in dietary supplements, and in topical applications to treat conditions like acne and zinc deficiency. Additionally, zinc sulphate is employed in water treatment processes and as a mordant in dyeing textiles.
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