Zinc Acetate Dihydrate Molecular Weight

Zinc acetate dihydrate is a widely used inorganic compound with significant applications in medicine, industry, and chemical synthesis. Understanding its molecular weight, chemical properties, solubility, and uses is essential for both scientific and industrial applications.This topic explores the molecular weight of zinc acetate dihydrate, its composition, structure, physical and chemical properties, and its practical applications.

Molecular Formula and Molecular Weight

Chemical Formula of Zinc Acetate Dihydrate

Zinc acetate dihydrate consists of zinc (Zn), acetate ions (CH₃COO⁻), and two water molecules (H₂O). Its molecular formula is:

Molecular Weight Calculation

To determine the molecular weight of zinc acetate dihydrate, we sum the atomic weights of its components:

• Zinc (Zn) = 65.38 g/mol

• Carbon (C) = 12.01 g/mol à 4 = 48.04 g/mol

• Hydrogen (H) = 1.008 g/mol à 6 = 6.048 g/mol

• Oxygen (O) = 16.00 g/mol à 8 = 128.00 g/mol

Total Molecular Weight:

Thus, the molecular weight of zinc acetate dihydrate is approximately 219.50 g/mol.

Physical and Chemical Properties

1. Physical Properties

• Appearance: White crystalline solid

• Odor: Slight acetic acid smell

• Melting Point:237°C (decomposes)

• Solubility:Highly soluble in water and soluble in ethanol

• Density:1.74 g/cm³

2. Chemical Properties

• pH in Aqueous Solution: Slightly acidic

• Decomposition: When heated, it loses water molecules and decomposes into zinc oxide.

• Reaction with Bases: Reacts with sodium hydroxide (NaOH) to form zinc hydroxide (Zn(OH)₂).

Chemical Equation for Dissociation in Water:

This reaction releases zinc ions (Zn²⁺) and acetate ions (CH₃COO⁻) in solution.

Production and Synthesis of Zinc Acetate Dihydrate

1. Reaction of Zinc Oxide with Acetic Acid

Zinc acetate dihydrate is produced by reacting zinc oxide (ZnO) with acetic acid (CH₃COOH).

2. Reaction of Zinc Carbonate with Acetic Acid

Another method involves the reaction between zinc carbonate (ZnCO₃) and acetic acid.

This reaction also produces carbon dioxide gas (CO₂) as a byproduct.

Applications of Zinc Acetate Dihydrate

1. Medical and Pharmaceutical Uses

• Used as a dietary supplement for zinc deficiency.

• Helps in wound healing and immune function.

• Used in lozenges for the treatment of common colds.

• Applied in topical ointments to treat skin conditions like acne and eczema.

2. Industrial Applications

• Used as a mordant in textile dyeing.

• Employed as a chemical reagent in laboratories.

• Used in wood preservation to protect against decay.

3. Chemical Synthesis

• Used as a precursor for zinc oxide (ZnO) synthesis.

• Important in the production of polymers and catalysts.

4. Food and Agriculture

• Used as a preservative in animal feed.

• Applied in fertilizers to provide zinc nutrients for plants.

Safety and Handling Precautions

1. Health Hazards

• Irritant to the skin, eyes, and respiratory system.

• Can cause stomach irritation if ingested in large amounts.

2. Safe Handling Practices

• Use protective gloves and goggles when handling the compound.

• Avoid inhaling dust by working in a well-ventilated area.

3. Storage Recommendations

• Store in a cool, dry place away from moisture.

• Keep away from strong acids and oxidizing agents.

Comparison of Zinc Acetate Dihydrate with Other Zinc Compounds

Zinc acetate dihydrate stands out due to its high solubility and versatility in medical and industrial applications.

Zinc acetate dihydrate is an essential zinc-based compound with a molecular weight of 219.50 g/mol. It is widely used in medicine, industry, and chemical synthesis due to its solubility, reactivity, and beneficial properties.

Understanding its chemical structure, applications, and handling precautions ensures safe and effective use in various scientific and industrial processes.

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