I have found that the hot acid seems to do a better job.

我发觉到热酸似乎把工作做得更好。

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Volcanic gases and magma heat the groundwater, turning it in a hot acid that dissolves rock into a slurry of mud and clay.

火山气体与岩浆加热地下水，使之变成一种高温的酸性水，将演岩石溶解为泥浆。

youdao

Precipitation process of the goethite from hot acid leaching solution of zinc concentrate roast dust was investigated.

研究了从锌焙烧烟尘常压热酸浸出液中沉淀针铁矿的过程。

youdao

In Slumdog's single most brutal scene, two gangsters blind an orphan they have kidnapped with hot acid. (Maimed children make more lucrative beggars.) Yet there are other examples.

FORBES: Slumming It

Something hot and acid came up into her mouth she swallowed it down.

NEWYORKER: I.D.