Preparation of Zinc Sulphate: It can be prepared by reacting zinc metal, zinc oxide, or zinc carbonate with sulfuric acid: Using zinc metal: Zn + H2SO4 → ZnSO4 + H2 Using zinc oxide: ZnO + H2SO4 → ZnSO4 + H2O Using zinc carbonate: ZnCO3 + H2SO4 → ZnSO4 + CO2 + H2O Properties of Zinc … Read more
Overview of Astringents: Astringents are substances that cause the contraction or shrinkage of tissues, helping to dry out and tighten the skin. Commonly used in dermatology, cosmetics, and some medical treatments. They work primarily by precipitating proteins on the skin surface or mucous membranes, leading to reduced tissue permeability, inflammation, secretion, and bleeding. Mechanism of … Read more
Preparation of Sodium Nitrite: Produced by reacting nitrous acid with sodium hydroxide or sodium carbonate: HNO2+NaOH→NaNO2+H2O Properties of Sodium Nitrite: White or slightly yellowish crystalline powder. Soluble in water. Acts as a strong oxidizer and can be corrosive. Uses Antidote for Cyanide Poisoning: Used in combination with sodium thiosulfate. Food Preservative: Especially in cured meats. … Read more
Preparation of Activated Charcoal: Prepared by heating carbon-rich materials (wood, peat, coconut shells, sawdust) in the presence of a gas (steam or carbon dioxide) at high temperatures. This process increases the surface area and porosity of the material. Properties of Activated Charcoal: Fine, black, odorless powder. Has a large surface area and highly adsorptive properties. … Read more
Preparation of Sodium Thiosulfate: Sodium thiosulfate is prepared by reacting sulfur dioxide with a sodium sulfite solution, followed by the addition of elemental sulfur: SO2 + 2Na2SO3 + S → 2Na2S2O3 Properties of Sodium Thiosulfate: A colorless, odorless, and crystalline compound. Highly soluble in water. Also known as “hypo.” Uses Antidote for Cyanide Poisoning: Used … Read more
A poison is a harmful substance that can cause illness or death, while an antidote is a remedy that counteracts or neutralizes the effects of a poison Poison Definition: A poison is any substance that can cause harm or death when introduced into or absorbed by a living organism. Sources: Poisons can originate from chemicals, … Read more
Preparation of Ferrous Gluconate: It can be prepared by reacting ferrous sulfate with sodium gluconate: $ {FeSO4 + Na2C6H12O7 -> FeC12H22O14 + Na2SO4} $ Properties of Ferrous Gluconate: Physical Appearance: Yellowish-gray to light green crystalline powder. Solubility: Soluble in water with a mildly sweet taste. Nature: Non-toxic, biodegradable compound. Melting Point: About 180°C (356°F). Uses … Read more
Preparation of Ferrous Sulfate: Ferrous sulfate can be prepared by: Reacting iron metal with dilute sulfuric acid: Fe + H2SO4 → FeSO4 + H2 Reacting ferrous oxide with sulfuric acid: FeO + H2SO4 → FeSO4 + H2O Reacting ferrous hydroxide with sulfuric acid: Fe(OH)2 + H2SO4 → FeSO4 + 2H2O Properties of Ferrous Sulfate: Physical … Read more
Overview of Haematinics: Haematinics are medicines used to treat and prevent anemia, a condition marked by a deficiency of healthy red blood cells or hemoglobin. Hemoglobin is essential for oxygen transport in the body, and its deficiency can result in symptoms such as fatigue, weakness, shortness of breath, and dizziness. Haematinics provide the necessary nutrients … Read more
Preparation of Sodium Potassium Tartrate Prepared by neutralizing a mixture of tartaric acid with equimolar amounts of sodium hydroxide and potassium hydroxide: C4H6O6 + NaOH + KOH → NaKC4H4O6 + 2H2O Properties of Sodium Potassium Tartrate Physical Appearance: Colorless crystalline solid. Solubility: Soluble in water, with a mildly sweet, tart taste. Nature: Non-toxic, biodegradable compound. … Read more
