Silver Bromide Precipitation

AgNO3 + NaBr → AgBr↓ + NaNO3

개요

Silver bromide precipitates as a pale yellow solid with Ksp = 5.4 × 10⁻¹³. It is much less soluble than AgCl. Silver bromide is photosensitive, decomposing in light to form metallic silver and bromine. This photosensitivity made AgBr the key compound in photographic film emulsions.

참여 물질

역할 물질 계수 상태
반응물 Silver Nitrate AgNO₃ 1 (aq)
생성물 Sodium Nitrate NaNO₃ 1 (aq)

일상 속 예시

All analog photographs ever taken relied on silver bromide crystals darkening when exposed to light in the camera.

산업적 중요성

브로민화은은 150년 이상 사진 산업의 기반이었습니다. 디지털이 필름을 대체했지만, AgBr은 여전히 특수 의료 및 과학 영상에 사용됩니다.

성질

유형
Precipitation
가역 반응
아니오
에너지
발열
ΔH
-85.0 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 Bromide Precipitation?
The balanced equation is: AgNO₃ + NaBr → AgBr↓ + NaNO₃.
What type of reaction is Silver Bromide Precipitation?
Silver Bromide Precipitation is a precipitation reaction.
Is Silver Bromide Precipitation exothermic or endothermic?
Silver Bromide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -85.0 kJ/mol.