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1)  the source of Cr~(+6)
六价铬来源
2)  hexavalent chromium
六价铬
1.
Comparison of methods for stripping steel sheet coating and determining hexavalent chromium;
钢板涂镀层的剥离及六价铬的定量方法比较
2.
Alternatives to hexavalent chromium electroplating and their applications;
取代重污染六价铬电镀的技术及应用
3.
Reasons for the production of hexavalent chromium in trivalent passivation coating;
三价铬钝化膜为什么会产生六价铬
3)  Cr(VI)
六价铬
1.
Requirements for discharge of cyanide and Cr(VI) in China in accordance with national laws and standards;
我国法律及标准对氰化物和六价铬排放的要求
2.
The Study on Treatment of Waste Water Containing Cr(VI) by Activated Carbon Made from Bamboo;
竹活性炭处理六价铬废水的试验研究
3.
Removal of Cr(VI) in Wastewater by a Modified Fly Ash Adsorbent;
改性粉煤灰除去水中六价铬的研究
4)  Cr(Ⅵ)
六价铬
1.
Direct Determination of Cr(Ⅵ) in Eggs by Graphite Furnace Atomic Absorption Spectrometry Using Volatilization of Cr(TTA)3;
石墨炉原子吸收法直接测定鸡蛋中的六价铬
2.
STUDY ON TREATMENT OF WASTE WATER OF Cr(Ⅵ) BY ACTIVATED CARBON MADE FROM FLY COAL ASH CARBON;
粉煤灰活性炭处理六价铬废水的试验研究
3.
Adsorption of Cr(Ⅵ) in Water with Activated Carbon Made from Fly Ash;
粉煤灰活性炭吸附水中六价铬试验
5)  Cr~(6+)
六价铬
1.
Isolation of Bacteria Strains with High Resistance to Cr~(6+) andValuable in Cr~(6+) Bioremediation;
具六价铬高度耐受和祛除能力菌株的分离
2.
Study on Direct Electro-Reduction of Cr~(6+) in Alkaline Media;
碱性介质中六价铬的直接电化学还原研究
3.
On Titrimetric Method Used to Determine High Concentration Cr~(6+) of Waste Water;
滴定法测定废水中高浓度六价铬的研究
6)  replacing the conventional hexavalent chromium
代六价铬
补充资料:六价铬
分子式:
CAS号:

性质:为以铬酸盐(-CrO4)和重铬酸盐(-Cr2O7)形式存在的铬。溶于水,在水体中稳定,在厌氧条件下可还原成三价铬。三价铬和六价铬对人体健康都有害,有致癌作用。但六价铬的毒性更强,大约比三价铬高100倍,更易被人体吸收,并在体内蓄积。工业废水如电镀废液中的铬主要是六价化合物,在排放前需进行处理。方法是在酸性条件下,通过化学还原反应使之变成三价铬,或是用离子交换法将其除去。中国规定生活饮用水和地面水中六价铬的最高容许浓度为0.05mg/L;工业废水中六价铬及其化合物的最高容许排放浓度0.5mg/L。

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