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When nitric acid is poured on copper, a brown vapor gives off.

硝酸倒在铜上, 会散发出一种棕色的蒸气。

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Technology of nuclear fuel cycle.Determination of neptunium in nitric acid solutions by molecular absorption spectrophotometry.

核能.核燃料循环技术.分子吸收分法测定硝酸溶液中的镎Nuclear energy.

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Corrosively medium for chemical production such as sodium hydrate,caustic soda,sulfuric acid,nitric acid,acetic acid,fatty acid.

化工生产品中的腐蚀性物料,如:烧碱、纯碱、浓稀硫酸、碳酸、醋酸

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The ore sample was dissolved in nitric acid.After enrichment and separation with Xanthic ester cotton,the silver was determined by thiocyanometry.

该方法采用硝酸溶解样品,黄原酯棉富集分离,以硫氰酸盐滴定法进行测定。

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The selective oxidation of ethers by chromic reagent, peroxide, nitric acid, oxygen and ozonide, as well as the ethers anodic oxidation are particularly introduced.

主要介绍(Ⅵ)试剂,过氧化物、硝酸、氧和臭氧氧化剂对醚选择性氧化以及醚的阳极电氧化研究状况。

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This article introduces that using mixed acid of nitric acid and sulfuric acid, beet waste-slag produces industrial product oxalic acid by ordinary pressure hydrocarbonylation.

本文介绍利用硝硫混酸常压氧化法,把甜菜废渣制成工业品草酸。

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The indium sesquioxide with over 99% purity can be prepared by a decomposition of nitric acid. The method was characterized by fewer equipments, simple operation, low cost and quick yield.

采用硝酸分解法可制取纯高于99%的三氧化二铟.本法具有设备少、操作简单、成本低、见效快优点.

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