Silver Iodide Precipitation

AgNO3 + KI → AgI↓ + KNO3

نظرة عامة

Silver nitrate reacts with potassium iodide to form a yellow precipitate of silver iodide (Ksp = 8.5 × 10⁻¹⁷). AgI is extremely insoluble and does not dissolve in ammonia, unlike AgCl and AgBr. Its crystal structure is similar to ice, making it an excellent cloud seeding agent.

المشاركون

الدور المادة المعامل الحالة
متفاعل Silver Nitrate AgNO₃ 1 (aq)
منتج Potassium Nitrate KNO₃ 1 (aq)

مثال من الحياة اليومية

Cloud seeding aircraft release silver iodide particles to induce rain, exploiting AgI's ice-like crystal structure that nucleates ice crystals.

الأهمية الصناعية

Silver iodide is used in cloud seeding for weather modification, in photography, and as an antiseptic agent.

الخصائص

النوع
Precipitation
قابل للعكس
لا
الطاقة
طارد للحرارة
ΔH
-110,0 kJ/mol

التفاعلات ذات الصلة

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Silver Iodide Precipitation?
The balanced equation is: AgNO₃ + KI → AgI↓ + KNO₃.
What type of reaction is Silver Iodide Precipitation?
Silver Iodide Precipitation is a precipitation reaction.
Is Silver Iodide Precipitation exothermic or endothermic?
Silver Iodide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -110.0 kJ/mol.