Silver Iodide Precipitation

AgNO3 + KI → AgI↓ + KNO3

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Silver Nitrate AgNO₃ 1 (aq)
생성물 Potassium Nitrate KNO₃ 1 (aq)

일상 속 예시

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

산업적 중요성

아이오딘화은은 기상 조절을 위한 구름 씨뿌리기, 사진, 그리고 방부제로 사용됩니다.

성질

유형
Precipitation
가역 반응
아니오
에너지
발열
ΔH
-110.0 kJ/mol

관련 반응

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.