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1、亚硫酸锂的基本信息及制备方法目录1 .基本信息12 .理化性质13 .制备方法24 .与提锂关联的物质溶解度31 .基本信息中文名称：亚硫酸锂英文名称:di1ithiumsu1fite英文别名:Su1furousacid,di1ithiumsa1t；EINECS236-636-2；Su1furousacid,1ithiumsa1t(1:2)；Di1ithiumsu1phite；di1ithium；CAS号：13453-87-7分子式：1i2SO3分子量：93.94520精确质量：93.98880PSA：82.400002 .理化性质为白色针状晶体，有两种晶型：-型和Y-型，它们在空气中都不稳定
2、。溶于水，微溶于乙醇，难溶于弱极性有机溶剂。常以一水合盐的形态存在，一水合物易溶于水，在水中的溶解度：30：24.9gCOOm1水80：22.0g100m1zK水溶液呈弱碱性，难溶于有机溶剂。在潮湿的空气中易被氧化。在氢气氛围中热至140。C失去一分子结晶水，在以浓硫酸作为干燥剂时室温下并不失去结晶水。该品受热至455分解。3 .制备方法1 .在低温下，向悬浮碳酸锂的碳酸锂水溶液中通入足量二氧化硫，然后加入冰冷的乙醇可以结晶得到六水合盐。不同温度和条件下可以得到二水合盐和一水合盐。2 .工业上，一些废弃物，如赤泥含有锂元素，可以使用烟气中和，使其浓缩，然后利用溶解度差异分离。4.与提锂关联的物
3、质溶解度温度/1i2SO41i2CO31iOH1i2SO3Na2SO4K2SO4B:CNa2SO3NaHSO3NaHSO4K2SO3KHSO4KHSO3Na2SO%K2SO4%纯水密度硫酸钾/钠溶液密度估算O35.611.55812.0726.644.767.110.6713.6316.1221.4151.326.8260.674.546.641.001.03135.561.54812.0726.584.827.260.6614.1616.4621.6951.3127.159.644.606.771.001.03235.51.53612.0726.524.977.420.6714.716.82
4、1.9851.3227.3858.654.736.911.001.03335.431.52612.0826.475.187.570.6815.2517.1422.2651.3227.6557.684.927.041.001.03435.371.51612.0826.415.487.730.7115.8117.4722.5551.3327.9356.725.207.181.001.04535.321.50412.126.355.857.880.7416.3817.8122.8351.3428.2155.825.537.301.001.04635.261.49412.1126.296.38.030
5、.7816.9618.1523.1251.3528.4854.955.937.431.001.04735.191.48412.1226.236.828.180.8317.5518.4923.4051.3628.7654.116.387.561.001.04835.141.47312.1326.187.438.330.8918.1418.8323.6951.3729.0453.326.927.691.001.05935.081.46212.1526.128.18.480.9618.7519.1623.9751.3729.3152.497.497.821.001.051035.031.45212.
6、1626.068.868.631.0319.3619.524.2651.3829.5951.758.147.941.001.061134.951.44112.17269.698.781.1019.9919.8424.5451.3929.87518.838.071.001.06温度/1i2SO41i2CO31iOH1i2SO3Na2SO4K2SO4B:CNa2SO3NaHSO3NaHSO4K2SO3KHSO4KHSO3Na2SO%K2SO%纯水密度硫酸钾/钠溶液密度估算1234.91.43112.1825.9410.68.931.1920.6220.1824.8351.430.1450.39.5
7、88.201.001.071334.841.42112.2125.8911.829.081.3021.3120.5225.1151.4130.4249.510.578.321.001.071434.791.41112.2225.8313.089.221.4222.0120.8625.4051.4230.748.7311.578.441.001.081534.731.40112.2525.7714.389.371.5322.7321.225.6851.4330.9847.9712.578.571.001.091634.681.39112.2725.7115.729.521.6523.4621.5
8、425.9751.4431.2547.2313.588.691.001.091734.611.38112.325.6517.099.661.7724.2121.8826.2551.4531.5346.514.608.811.001.101834.551.37112.3225.618.59.811.8924.9722.2226.5451.4731.8145.815.618.931.001.111934.51.36112.3525.5419.959.952.0125.7522.5626.8251.4832.0845.116.639.051.001.112034.441.35112.3725.482
9、1.4410.092.1226.5422.927.1151.4932.3644.4317.659.171.001.122134.391.34212.425.4222.9610.232.2427.3423.2427.3951.532.6443.7818.679.281.001.132234.341.33112.4425.3624.5210.382.3628.1623.5727.6851.5132.9143.1119.699.401.001.132334.281.32212.4625.3126.1210.522.482923.9127.9651.5233.1942.4820.719.521.001
10、.142434.231.31212.525.2527.7610.662.6029.8524.2528.2551.5433.4741.8721.739.631.001.152534.171.30312.5425.1929.3310.82.7230.7124.5928.5451.5533.7441.2822.689.751.001.152634.121.29412.5625.1330.8810.942.8231.524.9328.8251.5634.0240.8123.599.861.001.16温度/1i2SO41i2CO31iOH1i2SO3Na2SO4K2SO4B:CNa2SO3NaHSO3
11、NaHSO4K2SO3KHSO4KHSO3Na2SO%K2SO%纯水密度硫酸钾/钠溶液密度估算2734.071.28312.625.0732.4211.082.9332.2325.2729.1151.5734.340.4324.489.971.001.172834.011.27412.6425.0233.9411.223.0232.8925.6129.3951.5934.5740.1725.3410.091.001.172933.961.26512.6824.9635.4411.353.1233.4825.9429.6851.634.8539.9826.1710.191.001.183033.
12、91.25612.7324.936.9211.493.213426.2829.9651.6135.1339.8926.9610.311.001.183133.851.24612.7624.8438.4311.633.3034.5526.6230.2551.6335.439.7827.7610.421.001.193233.81.23712.824.7839.8411.763.3935.0526.9630.5351.6435.6839.7228.4910.521.001.193333.741.22812.8524.7341.1611.93.4635.527.2930.8251.6535.9639.71
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