Several other metal salts have been proposed to react with acid halides to give acid anhydrides in good yield. Thus, thallium carboxylates in etheral suspension may be treated with acid halides to lead to acid anhydrides in high yield. The method has the advantage that thallium chloride can be...
Oil compositions comprising a lubricating oil and an oil-soluble hydrocarbon polymeric viscosity index improver such as ethylene-propylene copolymers are substantially haze-free when said composition contains an anti-hazing amount of an oil-soluble strong acid containing a hydrogen dissociating moiety which...
Acid definition: a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can ac
The complex structure in RNA often involves the hydrogen-bond donor/acceptor properties of the 2′-OH positions. Thus, in addition to the known metal-binding positions in the major and minor grooves of both DNA and RNA helices, additional metal sites are also found in RNA that include non...
acid test,acid humour 权威英汉双解 英汉 英英 网络释义 acid 显示所有例句 n. 1. [u][c] 酸a chemical, usually a liquid, that contains hydrogen and has a pH of less than seven. The hydrogen can be replaced by a metal to form a salt. Acids are usually sour and can often burn holes ...
Acidcauses metal to corrode. 酸使金属腐蚀. 《简明英汉词典》 Theacidhas burnt a hole in my jacket. 这种酸把我的上衣烧了一个窟窿. 《现代汉英综合大词典》 Theacidhas eaten through the metal. 酸把这块金属腐蚀穿了. 《简明英汉词典》 Anacidsolution is concentrated when it has very muchacidin it...
Similarly, we revealed the instability of Ta-WOx/metal contact in PSCs under illumination and heat (60 °C), resulting in rapid fill factors (FF) losses of PSCs34. More recently, it has been discovered that ionic-salt-doped HTL forms robust quasi-ohmic contact, demonstrating high photo-...
• Chemical Abstracts Service Registry Number: CAS 7647-01-0 • Synonyms: Aqueous hydrogen chloride; Chlorohydric acid; HCl; Hydrochloride; Hydrogen chloride; Muriatic acid; Spirits of salt • Chemical/Pharmaceutical/Other Class: Inorganic acid; Corrosive View chapter ...
Hydrochloric acidis a non-oxidizing acid that exhibits weak reducing properties during digestion. Concentrated HCI is an excellent solvent for some metal oxides and for metals that are oxidized more easily than hydrogen. At a high pressure and temperature, many silicates and numerous other refractory...
X-ray crystallographic analysis of p-hydroxybenzoic acid salt of (I), (II) and (III) suggested that the reduced number of hydrogen bonds caused the apparent higher solubility. Further analyses of seven salts of (I) were performed. It was not possible to identify any relationship between the ...