1) spindle calcium carbonate
纺锤形碳酸钙
2) spherical calcium carbonate
球形碳酸钙
1.
In order to get spherical calcium carbonate by calcium carbide residue,the effects of solution pH value,pretreatment of calcium carbide residue,carbonizing temperature,Ca~(2+) concentration and CO_2 flow rate on the formation of spherical calcium carbonate were studied using XRD and SEM.
为有效利用电石制乙炔的副产物电石渣资源,以电石渣为原料用化学沉淀法合成了球形碳酸钙,并利用X射线衍射、扫描电镜等手段研究了溶液的pH值、电石渣的预处理方式、碳化反应温度、Ca2+浓度、CO2流量等对球形碳酸钙合成的影响。
2.
In this paper,calcium hydroxide in the calcium carbide residue was high-efficiently turned to soluble calcium glycine solution with glycine solution,then spherical calcium carbonate,which whiteness and purity were both higher than 96%,was prepared successfully by the carbonization reaction without any template additive.
本文采用甘氨酸水溶液高效地将电石渣中的氢氧化钙提取成为可溶性的甘氨酸钙盐,随后在不添加晶形模版剂的情况下,通过对甘氨酸钙溶液的碳化,简易地合成出了球形碳酸钙。
3) spindle
[英]['spɪndl] [美]['spɪndḷ]
纺锤形
1.
Study on the Formation Process of Spindle β-FeOOH Particles;
纺锤形β-FeOOH的形成过程研究
2.
The Light Distribution,Yield and Quality of Spindle Canopy for Apple under Different Cultivation
不同栽培方式下苹果纺锤形冠层光照分布及产量品质效应
3.
Submicron spindle and pseudocube α-Fe2O3 particles were synthesized at pH=6～9 in the presence of trace Na2SiO3.
以Ferrihydrite(又称水合氧化铁hydrous iron oxide)为反应前驱物,Fe(II)为催化剂,在微量Na2SiO3存在下,控制pH=6～9范围内合成出了亚微米级纺锤形和准立方形α-Fe2O3微粒。
5) spindle-shaped
纺锤形
1.
Homogeneous spindle-shaped γ-FeOOH crystallite were prepared by oxidizing the Fe(CO2)2(OH)2(1-x) suspensions system formed in the solution of FeSO4 and NaWCO3 by doping Y3+.
本文还对γ－ＦｅＯＯＨ的脱水过程机制和以γ－ＦｅＯＯＨ为中间体经热处理制备的纺锤形γ－Ｆｅ２Ｏ３磁性能作了初步探讨。
2.
As spindle-shaped goethite particles are loose,coating them with SiO2, Ni(OH)2 and Co (OH)2 at different hydrothermal temperatures forms a transition layer of a-Fe2O3 ,which makes them compact effectively.
由于纺锤形铁黄粒子较松散的特点，通过在不同水热温度下包覆硅、钴或镍，使纺锤形铁黄脱掉大量凝并接触部分的羟基，形成一层α－Fe2O3过渡层，粒子得到了有效的密实化，从而制备了高性能的纺锤形金属磁粉。
补充资料：碳酸氢钙,重碳酸钙
CAS：3983-19-5
中文名称：碳酸氢钙,重碳酸钙
英文名称：calcium bicarbonate；calcium bis(hydrogencarbonate)
中文名称：碳酸氢钙,重碳酸钙
英文名称：calcium bicarbonate；calcium bis(hydrogencarbonate)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条