英国戴维于1808年用钾还原氧化镁制得金属镁。它是一种银白色的轻质碱土金属,化学性质活泼,能与酸反应生成氢气,具有一定的延展性和热消散性。镁元素在自然界广泛分布,是人体的必需元素之一。
8镁离子对紫外辐射损伤人皮肤细胞防护和修复作用研究2.1.引言第二章镁离子对细胞损伤的修复作用镁(magnesium,Mg)是人体不可缺少的重要元素,其含量在阳离子中仅次于钠、钾和钙,细胞内仅次于钾而居第二位。
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... 镁-稀土合金 rare earth 稀土合金制取 preparation of rare earth alloy 特种铝基混合稀土合金 special aluminium mischmetal ...
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氟化镁 [无化] magnesium fluoride ; MgF ; magnesium
氢氧化镁 [无化] magnesium hydroxide ; [无化] magnesium hydrate ; MDH ; MgOH ; magnesium hydroxide
菱镁矿 [矿物] magnesite ; gioberite ; MgCO ; Buy magnesite ; magnesite
硝酸镁 [无化] Magnesium nitrate ; Magnesiumnitrat ; Magne-sium
乙酸镁 [有化] Magnesium acetate ; Magnesium acetate tetrahydrate ; Magnesiumacetat ; Cromosan
硅化镁 Magnesium silicide
硬脂酸镁 [有化] Magnesium stearate ; MgSt ; Magnesium stea ; dolomol
氮化镁 magnesium nitride ; MgN ; Magnesiumnitrid ; MgxNy
硫化镁 Magnesium sulfide ; MgS ; Magnesiumsulfid
The addition of magnesium (5μg) to the modifier palladium (10μg) improve the recovery of copper.
在10μg钯改进剂中加入5μg镁,可改善测定水样中铜的回收率。
参考来源 - 塞曼石墨炉原子吸收法中用钯消除氯化物干扰的机理Therefore magnesium based alloy is the hot research area at various countries in recently years.
因此镁基储氢合金成为该领域最近几年各国研究开发的热点。
参考来源 - 镁镍储氢合金的氢化燃烧制备技术及掺杂改性研究In this paper, the microstructure and properties of new type Mg-Al-Zn alloys were mainly studied.
本文着重研究了新型镁铝锌合金的组织及性能。
参考来源 - 新型镁铝锌合金组织与性能的研究Conclusion:The results showed that there were relatively rich Ca,Mg,Fe,Zn,Mn,Cu in Galla chinensis.
结论:五倍子中含有较丰富的钙,镁,铁,锌,锰,铜元素。
参考来源 - 火焰原子吸收光谱法测定五倍子中的微量元素含量·2,447,543篇论文数据,部分数据来源于NoteExpress
杏仁一样可以帮助你的睡眠,因为它富含色氨酸和镁。
Almond can also help your sleep because it contains tryptophan and magnesium.
我们会观察土壤的化学性质——比如某个地方的土壤里有多少氮或者镁——然后与附近土壤的化学性质作比较。
We look at soil chemistry—for example, how much nitrogen or magnesium there is in the soil in one spot—and we compare it with the chemistry of the soil a short distance away.
人们普遍认为,具有如此高镁含量的火山岩是不可能存在的。
It was generally accepted that volcanic rocks with such high levels of magnesium could not exist.
And, she loved metallurgy as I do, and she named one of her dogs Maggie, and one of her dogs Molly, magnesium and molybdenum.
她和我一样都喜欢冶金学,她给一条狗取名为麦琪,另一条取名为莫丽,镁和钼。
But, the reaction says I need twice as much mag as tickle if this reaction is going to go to completion.
但是这个反应告诉我们,镁的量应该是四氯化钛的两倍,如果要反应完全的话。
OK, so now the question is, how do we know the first place that this is a suitable reductant?
好的,现在的问题是,我们如何能知道第一步中,镁是一个合适的还原剂?
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