无机酸

The metal ion and the anion of the mineral acid form an insoluble salt.

金属离子和无机酸的阴离子生成一种难溶的盐。

The catalysts used are inorganic acids, organic acids and its acyl halides, etc.

所用催化剂为常用的无机酸、常用的有机酸及其酰卤等。

Exposed argentite could be dissolved in thiourea acidified by sulphuric acid ,since native Ag is not dissolved in non-oxidizing inorganic acids , hydrochloric acid was used to dissolve the sphalerite and to soak out the argentite which was enveloped in sphalerite .

继以硫酸酸化的硫脲溶剂溶解裸露的辉银矿，然后根据自然银在非氧化性的无机酸中不溶的特性，采用盐酸溶解闪锌矿并浸

In alternate embodiments, a combination of mineral and organic carboxylic acids such as citric acid are employed.

在供选择的实施方案中，可以采用无机酸和有机羧酸如柠檬酸的组合物。

There were hundreds of catalysts from the first single inorganic acid to current heterogeneous catalysts such as metallic oxide, heteroatom molecular sieve and heteropoly acid catalyst.

目前已见报道的催化剂已不下百种，其发展过程从最初单一的无机酸和无机盐类催化剂，发展到非均相的金属氧化物、杂原子分子筛、杂多酸盐催化剂等。

The results show that the compound conductive fiber has typical structure of sheath-core consists of black greened polyaniline electric conductive deposition as the skin and the white polypropylene matrix fiber as the core, which makes the compound fiber preferable physical mechanical property. The intensity and the elongation ratio of the electric conductive fiber are decreased but the thermal stability is enhanced after modified. The compound fiber has the good acid resistance but poor base resistance. The thermal stability of the compound fiber prepared by 4-methyl-benzene sulfonic acid is better than that prepared by hydrochloride acid. Moreover, the compound fiber can be re-doped by other organic or inorganic acid after freed from the adsorbed acid. Furthermore, the electric conductivity of the compound fiber decreases with the temperature increasing but hardly changed with the humidity. The adsorptive ability and therefore the content of the polyaniline, the constant of electric conduction, and the durability of the compound fiber can be enhanced by thinning the diameter, section heteromorphosis, section heteromorphosis and plasma treatment of the surface or blending with COPET of the fiber.

结果表明：复合纤维是聚丙烯与聚苯胺的共混体系，具有典型的皮芯型结构，皮层为墨绿色的聚苯胺沉积层，形成连续的导电通道，芯层为白色的聚丙烯基质纤维，提供物理机械性能；导电改性后纤维的强度、强力和伸长率均有下降，但热稳定性得到提高；复合纤维的耐酸性比耐碱性好，以对甲苯磺酸做掺杂酸比盐酸掺杂聚苯胺热稳定性好，脱掺杂后的复合纤维，可用其它无机酸或有机酸进行再掺杂；复合导电纤维的电导率随温度升高降低幅度较大，但几乎不受湿度影响；基质纤维细旦化、截面异形化、表面等离子体处理或共混COPET等改性处理均能提高纤维的吸附性，进而提高复合纤维表面聚苯胺含量、电导率和耐久性。

The decomposition of model substances—hexose catalyzed by strong acidic resins instead of inorganic acids was studied.

开展了以固体酸替代无机酸降解模型物质六元糖的研究。

Hydrofluoric acid is an extremely powerful inorganic acid and a vigorous dehydrating agent.

氢氟酸是一种极强的无机酸和强脱水剂。

Type of products has improved volume density, mechanical strength and impermeability to some extent compared

压力下浸入相应的无机酸或其盐溶液，再经适当的高温热处理。该类产品体积密度

Various inorganic acid, such as ammonium chloride, copper sulfate, aluminum sulfate, mercury chloride, cerium sulfate and cerium chloride, have been evaluated for copper powder, zinc powder, or tin powder-mediated allylation reactions of carbonyl compounds with allyl bromide in aqueous medium.

结果表明：在同样的反应条件下，与铜粉或锌粉作用的此类反应相比，锡粉能更好的作用羰基烯丙基化反应，并且该反应的产率都比较高；在同样的金属促进剂存在下，硫酸亚铈的促进性能是所有无机酸中最好的。 2、研究了二氧化碳促进羰基化合物烯丙基化反应。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。