Nitric acid is an inorganic compound with the formula H N O 3. It is a highly corrosive mineral acid. [6] . The compound is colorless, but samples tend to acquire a yellow cast over time due to decomposition into oxides of nitrogen. Most commercially available nitric acid has a concentration of 68% in water.

硝酸，是一种具有强 氧化性 、腐蚀性的一元无机 强酸。 是六大无机强酸之一，也是一种重要的 化工原料，化学式为HNO3，分子量为63.01，其水溶液俗称硝镪水或氨氮水，纯品为无色透明发烟液体，有酸味。 在工业上可用于制化肥、农药、炸药、染料等；在有机化学中， 浓硝酸 与 浓硫酸 的混合液是重要的硝化试剂。 硝酸的 酸酐 是 五氧化二氮 （N2O5）。 2017年，硝酸被列入《易制爆危险化学品名录》 [8]，并按照《易制爆危险化学品治安管理办法》管控 [9]。 纯品为无色透 …

Nitric acid is a nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms. It has a role as a protic solvent and a reagent. It is a conjugate acid of a nitrate. View More...

在no3rr转化为nh3的过程中，主要有三种可能的分叉：*no3可能产生*no2或*no3h，*no2可能产生*no或*no2h， *noh可能产生*n或*nhoh。 图中表明，这三种催化剂即使在反应过程中产生少量的*NO3H，最终*NO3H也会自发地与一个氢质子结合形成*NO2，参与随后的制氨反应，这无疑将 ...

Feb 20, 2025 · It is a strong acid, completely ionized into hydronium (H 3 O +) and nitrate (NO 3−) ions in aqueous solution, and a powerful oxidizing agent (one that acts as electron acceptor in oxidation-reduction reactions).

Apr 25, 2012 · 2015-02-19 化学中 h表示什么意思？ 57 2018-11-25 no3－与h-和i-的化学反应是什么？ 13 2013-09-15 化学中的no3-是什么意思 33 2010-01-24 no3在化学中表示什么意思，是硝酸吗？ 还是硝酸根？ 11 2019-07-27 no3是什么化学元素 16 2009-09-10 no3 是什么材料 25 2010-08-03 化学中的 硝酸根和硝酸有什么区别 5

Sep 26, 2022 · 本研究主要以第一性原理为理论基础，通过DFT密度泛函理论计算，系统计算研究了以MoS2不同锚点上负载的3d过渡金属（Fe、Co、Ni 和 Mn）作为单原子催化剂（SA-MoS2），基于硝酸根催化还原全反应路径进行了不同反应条件（pH=0，7，14）下的反应机理的探究。 在不同pH下，对16种负载型单原子催化剂SA-MoS2和Cu（111）进行热力学NO3RR催化活性的计算，发现SA-MoS2的优先反应途径、速率决定步骤和极限电位都表现出pH相关性特征 …

Nitric acid is an inorganic compound with the formula HNO3. It is a highly corrosive mineral acid. The compound is colorless, but samples tend to acquire a yellow cast over time due to decomposition into oxides of nitrogen. Most commercially available nitric acid has a concentration of 68% in water.

Apr 22, 2024 · Nitric acid HNO 3, is a viscous, odorless, colorless liquid, in pure form, but brownish yellow in color, due to dissolved nitrogen oxide impurities. It releases yellow fumes (hence its name fuming acid) at room temperature. It is soluble in water and has a melting point of -41.6 ºC, and a boiling point of 83 ºC.

Notes. Go To: Top Data from NIST Standard Reference Database 69: NIST Chemistry WebBook The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment.