関連する実験動画

Updated: Jul 11, 2026

Calcium Carbonate Formation in the Presence of Biopolymeric Additives
09:31

Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Published on: May 14, 2019

商業用"アンモニア炭酸"の相組成

C B Sclar, L C Carrison

    Science (New York, N.Y.)
    |June 14, 1963
    PubMed
    まとめ

    新しく開封されたアンモニアム炭酸は,ユニークな二重塩であるアンモニアム二炭酸-炭酸塩を含んでいます. この不安定な化合物は,室温の空気中に素早く二酸化炭素アモニアに分解する.

    さらに関連する動画

    Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia12:05

    Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

    Published on: October 10, 2013

    Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films08:12

    Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

    Published on: September 8, 2017

    関連する概念動画

    Common Ion Effect03:24

    Common Ion Effect

    Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
    Preparation of Amines: Alkylation of Ammonia and Amines01:30

    Preparation of Amines: Alkylation of Ammonia and Amines

    Alkylation is one of the methods used to prepare amines. Direct alkylation of ammonia or a primary amine with an alkyl halide gives polyalkylated amines along with a quaternary ammonium salt through successive SN2 reactions. This process of making the quaternary salt through the direct alkylation method is called exhaustive alkylation.
    Each alkylation step makes the nitrogen center more nucleophilic, which triggers successive alkylations until a quaternary ammonium salt is formed. Considering...
    Titration of a Weak Base with a Strong Acid01:20

    Titration of a Weak Base with a Strong Acid

    The titration curve of a weak base like ammonia with a strong acid like hydrochloric acid is the mirror image of the titration curve of a weak acid with a strong base.
    Using the ICE table and substituting the Kb value, we calculate the initial pH of 50 mL of 0.1 M ammonia to be 11.11. Addition of 25 mL of 0.1 M hydrochloric acid to this solution of ammonia results in a buffer with an equal concentration of ammonia and ammonium ions. The pH of this buffer can be calculated by substituting these...
    Weak Base Solutions03:21

    Weak Base Solutions

    Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
    Qualitative Analysis03:46

    Qualitative Analysis

    For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
    For instance, group IV...
    Structure of Amines01:19

    Structure of Amines

    The hybridized nitrogen atom in amines possesses a lone pair of electrons and is bound to three substituents with a bond angle of around 108°, which is less than the tetrahedral angle of 109.5°. However, the C–N–H bond angle is slightly larger at 112°, with a carbon–nitrogen bond length of 147 pm. This carbon–nitrogen bond length of of amines is longer than the carbon–oxygen bond of alcohols (143 pm) but shorter than alkanes’ carbon–carbon bond (154 pm). These aspects are illustrated in Figure...