Preparation of ammonium hydroxide

Preparation of ammonium hydroxide

Preparation of ammonium hydroxide

Preparation of ammonium hydroxide

Ammonium hydroxide is prepared by saturating water with gaseous ammoniaAmmonia gas is generated and conducted directly from the flask without the introduction of a drying tube into an empty gas washing-bottle which serves to collect any solid particles mechanically carried over.

A glass apparatus for the preparation of ammonium hydroxide

A glass apparatus for the preparation of ammonium hydroxide

 

Gaseous ammonia is prepared by gently heating crude ammonium chloride (or ammonium sulfate) with dry calcium hydroxide:

Preparation of ammonia

Preparation of ammonia

Powdered ammonium chloride and calcium hydroxide in equal quantities are placed in Erlenmeyer flask fitted with a glass elbow. On the application of gentle heat ammonia is rapidly evolved. The gas is then conducted through a series of three 3-necked Wolff bottles of 300-400 ml capacity, each half filled with distilled water. Each Wolff bottle is fitted with an elbow reaching to the bottom of the bottle, a vertical safety-tube dipping just beneath the surface of the water, and an elbow extending just below the cork. As soon as all the air is driven out of the generating flask, the bubbles rising through the water in the first of the series of Wolff bottles grow smaller, and finally all the gas is absorbed. As soon as the water in this bottle becomes nearly saturated the gas rises through the solution unabsorbed and passes through the elbow into the second bottle, etc. As the ammonium hydroxide is lighter than water, it is important that the glass elbows extend to the bottom of each bottle, as otherwise the upper surface of the liquid would become saturated, while the lower strata would be but slightly alkaline.

Chemical lecture experiments, by F. G. Benedict, 196-197, 1916.

IUPAC Name

azanium;hydroxide

InChI

InChI=1S/H3N.H2O/h1H3;1H2

InChI Key

VHUUQVKOLVNVRT-UHFFFAOYSA-N

Canonical SMILES

[NH4+].[OH-]

MeSH Synonyms

ammonium hydroxide, Hydroxide, Ammonium

Depositor-Supplied Synonyms

ammonium hydroxide, Ammonia water, Ammonia aqueous, 1336-21-6, Aquammonia, NH4OH, Aqua ammonia, Ammonia, aqua, Ammonia, aqueous, Household ammonia, Ammonium hydroxide ((NH4)(OH)), Ammonia, monohydrate, Ammonia water 29%, Caswell No. 044, SX 1 (ammonia water), Ammonia, aqueous solution, Ammonium hydroxide solution, SX 1, HSDB 5125, EINECS 215-647-6, UN2073, UN2672, UN3318, Ammonium aqueous (28% or less NH3), EPA Pesticide Chemical Code 005301, Ammonium hydroxide (28% or less ammonia), Ammonia (ammonium hydroxide) 28% by weight or more NH3, ammoniaque, ammonia hydrate, water ammonia, Ammoniumhydroxid, Aqueous ammonia, ammoniumhydroxide, ammonium hyroxide, azanium hydroxide, agua de amoniaco, ammonium oxidanide, ammonium OH-, amrnonium hydroxide, hidroxido de amonio, NH3 water, water NH3, hydroxyde d’ammonium, Ammonia water (TN), degrees +/-E(R), Ammonia water (JP16), Ammonium hydroxide, 28%, degrees centA|AaNCE(R), AC1L24SX, ACMC-1C98S, NH3 H2O, NH3.H2O, KSC175O9F, 40205_ALDRICH, 40291_ALDRICH, 40321_ALDRICH, AMMONIUM HYDROXIDE, ACS, 05002_RIEDEL, 05003_RIEDEL, 30501_RIEDEL, 318612_ALDRICH, 318620_ALDRICH, 380539_ALDRICH, 40205_RIEDEL, 40291_RIEDEL, 40321_RIEDEL, 09857_FLUKA, 09858_FLUKA, 09859_FLUKA, 09861_FLUKA, 09870_FLUKA, 16748_FLUKA, 17093_FLUKA, 17837_FLUKA, 44273_FLUKA, CHEBI:18219, CTK0H5792, 318612_FLUKA, 318620_FLUKA, MolPort-003-925-450, VHUUQVKOLVNVRT-UHFFFAOYSA-N, 05002_SIAL, 05003_SIAL, 17093_SIAL, 30501_SIAL, 221228_SIAL, 320145_SIAL, 338818_SIAL, AKOS015903971, LS-3168, RL01531, RTR-004567, AN-49115, E527, IN000128, TR-004567, FT-0622304, Y1310, C01358, D04594, 3B4-1576, I14-18134, Ammonia solution, relative density 50% ammonia, 132103-60-7, 16393-49-0, Ammonia solution, relative density 50% ammonia [UN3318] [Nonflammable gas, Poison gas], Ammonia solution, relative density 50% ammonia [UN3318] [Nonflammable gas, Poison gas], Ammonia solutions, relative density 35% but not >50% ammonia, Ammonia solutions, relative density 35% but not >50% ammonia [UN2073] [Nonflammable gas], Ammonia solutions, relative density 35% but not >50% ammonia [UN2073] [Nonflammable gas], Ammonia solutions, relative density between 0.880 and 0.957 at 15 C in water, with >10% but not >35% ammonia, Ammonia solutions, relative density between 0.880 and 0.957 at 15 C in water, with >10% but not >35% ammonia [UN2672] [Corrosive], Ammonia solutions, relative density between 0.880 and 0.957 at 15 C in water, with >10% but not >35% ammonia [UN2672] [Corrosive]

Removed Synonyms

Ammonia solution, Spirit of hartshorn, Hydroxide, Ammonium, Ammonia solution, strong, NH(4)OH, UNII-5138Q19F1X, CID14923, C014333, D064753, 125888-87-1, 178115-93-0

Share This

Leave a Reply

Your email address will not be published. Required fields are marked *