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1.我们用浮沉子法测定了胶州湾青岛地区及广州湾湛江地区盐田析盐后苦卤中重水的含量,山东苦卤此重为1.240相当于28.0°Bé,广东苦卤比重为1.260相当于29.7°Bé,并用黄海某区海水作为标准进行此较。所有测定都在用CO_2-NaHCO_3平衡法使氧同位素正常化以后进行的。实验中采用了流 线型梭把式浮沉子,并使浮沉子升降区观察范围设在液柱中部,获得了较大的浮沉子升降速度与温度间直线性关系的范围。温度范围±0.33°C。速度范围±0.26毫米/秒。 2.测定结果表明:山东苦卤(28°Bé)密度较标准海水高出4.208γ相当于0.0037克分子％D_2O,重水含量较标准海水高24.03％。广东苦卤(29.7°Bé)密度较标准海水高出6.250γ,相当于0.0058克分子％D_2O,重水含量较标准海水高37.66％。 3.比较广东与山东二份样品测定结果,可以看出广东苦卤中重水含量有更多富集(虽然二者°Bé不尽相同,但密度差仍旧是显著的)。这与湛江、青岛两地的纬度差异(湛江——北纬21°,青岛——北纬36°)而引起的蒸发差异所应导致的预期结果是一致的。 4.样品水与标准水的密度差证明海水经自然蒸发析出氯化钠以后,重水含量获得了预期的富集效果。高浓度的苦卤可以作为提取浓重水的原料,为海水卤水综合利用提供了有价值的资料。 本文在实验过程中曾?
1. We measured the content of heavy bitter brine in Yantian Salt Field of Jiaozhou Bay and Zhanjiang Area of Guangzhou Bay by float-subcooling method. The heavy bitter brine content of Shandong Bittern is 1.240 which is equivalent to 28.0 ° Bé, the specific gravity of Cantor of China is 1.260 29.7 ° Bé, compared with seawater in the Yellow Sea as a standard. All measurements were performed after the oxygen isotopes were normalized using the CO2-NaHCO3 balance method. In the experiment, a streamlined shuttle float-sinker was adopted, and the observation range of the float-sinker lift zone was set in the middle of the liquid column. The range of linear relationship between the speed of float-sinker lift and the temperature was obtained. Temperature range ± 0.33 ° C. Speed range ± 0.26 mm / sec. The results show that the density of bitter brine (28 ° Bé) in Shandong is 4.208γ higher than that of standard seawater, equivalent to 0.0037 mol% D_2O, and the content of heavy water is 24.03% higher than that of standard seawater. The density of Cantharidinium (29.7 ° Bé) in Guangdong is 6.250γ higher than that of standard seawater, equivalent to 0.0058 mol% D_2O. The content of heavy water is 37.66% higher than that of standard seawater. 3. Comparing the determination results of two samples from Guangdong and Shandong, it can be seen that there is more enrichment of heavy water content in bitter brine in Guangdong (although the difference between them is different, the difference in density is still significant). This is consistent with the expected result due to the difference in evaporation between Zhanjiang and Qingdao (Zhanjiang - latitude 21 °, Qingdao - latitude 36 °). 4. The density difference between the sample water and the standard water shows that after the natural water is precipitated from the seawater, the heavy water content obtains the expected enrichment effect. Bittern brine with high concentration can be used as raw material for extracting heavy water, which provides valuable information for comprehensive utilization of seawater brine. This article in the experiment process?