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您現(xiàn)在的位置:首頁 > 技術(shù)文章 > 氨水密度與溫度

氨水密度與溫度

瀏覽次數(shù):4786發(fā)布日期:2019-03-26

氨水有濃氨水、高純度氨水、稀釋氨水、高濃度氨水之分,一般情況下,氨水熔點(diǎn)-77℃,沸點(diǎn)36℃,密度0.91g/cm^3。易溶于水、乙醇。易揮發(fā),具有部分堿的通性,由氨氣通入水中制得。有毒,對眼、鼻、皮膚有刺激性和腐蝕性,能使人窒息,空氣中可容許濃度30mg/m^3。主要用作化肥。

氨水密度與溫度關(guān)系如下

氨水密度與溫度對照表2          
 21℃22℃23℃24℃25℃26℃27℃28℃29℃30℃          
15%0.9391 0.9387 0.9383 0.9379 0.9375 0.9371 0.9369 0.9365 0.9377 0.9373           
16%0.9357 0.9353 0.9349 0.9345 0.9341 0.9337 0.9335 0.9351 0.9333 0.9369           
17%0.9324 0.9320 0.9316 0.9314 0.9308 0.9304 0.9300 0.9296 0.9294 0.9290           
18%0.9291 0.9287 0.9283 0.9279 0.9275 0.9271 0.9265 0.9261 0.9270 0.9253           
19%0.9258 0.9255 0.9249 0.9244 0.9240 0.9235 0.9230 0.9226 0.9222 0.9218           
20%0.9224 0.9219 0.9214 0.9209 0.9204 0.9199 0.9195 0.9190 0.9185 0.9180           
21%0.9195 0.9186 0.9181 0.9176 0.9174 0.9166 0.9161 0.9155 0.9150 0.9145           
22%0.9159 0.9154 0.9149 0.9144 0.9140 0.9134 0.9128 0.9122 0.9118 0.9113           
23%0.9126 0.9121 0.9155 0.9110 0.9104 0.9098 0.9093 0.9088 0.9083 0.9078           
24%0.9095 0.9089 0.9083 0.9077 0.9072 0.9066 0.9061 0.9056 0.9051 0.9046           
25%0.9064 0.9058 0.9052 0.9046 0.9040 0.9034 0.9029 0.9023 0.9017 0.9012           
26%0.9034 0.9028 0.9022 0.9016 0.9010 0.9004 0.8998 0.8992 0.8988 0.8982           
27%0.9004 0.8998 0.8992 0.8986 0.8980 0.8974 0.8968 0.8962 0.8958 0.8952           
28%0.8974 0.8968 0.8962 0.8956 0.8950 0.8943 0.8937 0.8931 0.8925 0.8918           
29%0.8944 0.8938 0.8932 0.9260 0.8920 0.8913 0.8906 0.8900 0.8894 0.8888           
30%0.8914 0.8908 0.8902 0.8893 0.8890 0.8883 0.8875 0.8869 0.8863 0.8857           
31%0.8884 0.8878 0.8872 0.8860 0.8860 0.8853 0.8844 0.8838 0.8832 0.8260           
32%0.8854 0.8848 0.8842 0.8827 0.8830 0.8823 0.8813 0.8807 0.8801 0.8795           
                     
                     
在不同溫度下,氨水的密度對照表                    
氨水的密度也比水小,                     
氨水溶液越濃溶液密度越小,氨水越稀密度越大。                     
所以濃度越大,密度越小,常溫時(shí)下列液體密度小的是A. 12mol/L氨水                     
                     
氨水又稱阿摩尼亞水,主要成分為NH3·H2O,是氨氣的水溶液,無色透明且具有刺激性氣味。熔點(diǎn)-77℃,沸點(diǎn)36℃,密度0.91g/cm^3。易溶于水、乙醇。                    
氨水的密度也相當(dāng)于水和液氨的混合物。水的密度是1g/em3,0℃時(shí)液氨的密度是0.638/cm3,當(dāng)兩液相混合時(shí),稀氨水的密度趨于1(如質(zhì)量分?jǐn)?shù)為10%的稀氨水的密度,15℃時(shí)是0.96/cm3,濃氨水的密度,趨近0.638。只因市售氨水的質(zhì)量分?jǐn)?shù)一般在25%~27%之間,它的密度也在0.910~0.902之間。                    
                     
                     
                     
                     
                     
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