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单词 Potassium Oxalate
释义

Potassium Oxalate

原声例句
TED-Ed(视频版)

Urine contains compounds that consist of calcium, sodium, potassium, oxalate, uric acid, and phosphate.

尿液中含有由钙、钠、钾、草酸盐、尿酸和磷酸盐组成的化合物。

中文百科

草酸盐 Oxalate

(重定向自Potassium Oxalate)
草酸根离子(C2O42−)的结构。

草酸盐是草酸形成的盐类,含有草酸根离子(C2O4或(COO)2)。由于草酸是二元酸,因此草酸盐分为正盐草酸盐与酸式盐草酸氢盐两类,后者含有HC2O4

草酸根离子(见右图)可作配体,与很多金属离子形成配合物,尤其是螯合物。该离子中,含有一个平面的八电子π体系,电子稳定性特别突出。它属于还原性阴离子,可被氧化剂,如高锰酸钾氧化为二氧化碳。

草酸盐有毒,人吞食可能发生草酸盐中毒,导致肾脏疾病甚至死亡。草酸根离子可沉淀钙离子,生成不溶于水的草酸钙。

英语百科

Oxalate 草酸盐

(重定向自Potassium Oxalate)
The structure of the oxalate anion
A ball-and-stick model of oxalate
Scanning electron micrograph of the surface of a kidney stone showing tetragonal crystals of weddellite (calcium oxalate dihydrate) emerging from the amorphous central part of the stone; the horizontal length of the picture represents 0.5 mm of the figured original.

Oxalate (IUPAC: ethanedioate) is the dianion with the formula C2O4, also written (COO)2. Either name is often used for derivatives, such as salts of oxalic acid, for example sodium oxalate Na2C2O4, or dimethyl oxalate ((CH3)2C2O4). Oxalate also forms coordination compounds where it is sometimes abbreviated as ox.

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更新时间:2025/6/21 8:12:26