Silver Bromide Precipitation

AgNO3 + NaBr → AgBr↓ + NaNO3

概述

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.

参与者

角色 物质 系数 状态
反应物 Silver Nitrate AgNO₃ 1 (aq)
产物 Sodium Nitrate NaNO₃ 1 (aq)

日常示例

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

工业重要性

溴化银是传统摄影工业的基础材料，其光敏性推动了百年摄影技术的发展，至今仍用于专业黑白摄影。

属性

类型
Precipitation
可逆
否
能量
放热
ΔH
-85.0 kJ/mol

相关反应

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.