How is aqua ammonia made

In industry, aqua ammonia is used as a precursor to some alkyl amines. Hexamethylenetetramine forms readily from aqua ammonia and formaldehyde. Ethylenediamine forms from 1,2-dichloroethane and aqua ammonia.

In furniture making, aqua ammonia is traditionally used to darken or stain wood containing tannic acid. As a food additive, aqua ammonia is used as an antimicrobial.

Grocery stores particularly use aqua ammonia to make beef safe. In laboratories, aqua ammonia is used in traditional qualitative inorganic analysis. Please call for details. Special packaging available on request. Aqua Ammonia, aqueous ammonia and ammonium hydroxide are synonymous terms referring to a solution of ammonia in water. Aqua ammonia is a clear, colorless liquid with a strong pungent ammonia odor. However, any strength can be custom blended to meet project requirements. Aqua ammonia is classified as a weak base.

It ionizes much less completely in water than does a strong base such as sodium hydroxide. It is a colorless liquid with a strong characteristic odor. Ammonia is used in the production of fertilizers, explosives and polymers.

Additional applications include DeNOx pollution control , heat treatment, water treatment, chemical processing, and refrigeration uses. Ammonium hydroxide, also known as aqua ammonia has all kinds of industrial uses.

Its use is widespread across all sorts of industries and applications, and it is one of the most commonly produced chemicals in the United States. If your company regularly uses industrial ammonia, or is in need of industrial ammonia, look no further. Airgas Specialty Products is a leading supplier and servicer of industrial ammonia, and our focus on providing you with an exceptional product, and the training to use it safely is our sole focus.

Ammonium hydroxide, also known as aqua ammonia, is a clear, colorless liquid. It has a strong, pungent scent. This odor is very recognizable because ammonia is used in the creation of smelling salts, household and industrial cleaners, and glass cleaners, so we come in contact with it almost every day.

Ammonium hydroxide is soluble and much more stable in its aqueous form than in its natural state, which is why ammonia is frequently transported and used once dissolved in water as aqua ammonia. Ammonium hydroxide is comprised of nitrogen and hydrogen dissolved in water. Disposed in the line 5 is a pump 9, the. Connected to the line 7 tank discharge line ll-provided with-a valve 1 2. Disposed above the cooling coil 8 is a water spray head 12a communicating through a line 13 with'a suitable source of water If the valve 10 be closed and the equipment per se being old and valve 12 opened, the same pump 9 can be used to pump the contents of the tank into the farmers tank truck.

Obviously, a two-way valve can be substituted for the valves 10 and Optionally, the inner end of the line 15 can be provided with discharge nozzles Assuming that in carrying out my process 11 number of tank cars or truck loads unit loads of anhydrous ammonia are to be converted to aqua ammonia in the tank '1, a sufiicient quantity of water is delivered to the tank so that after the n load has been delivered to the tank the resulting solution aqua ammonia will have the desired nitrogen content conventionally 20 percent nitrogen.

This having been done, the first unit load of anhydrous ammonia is introduced into the water through the line 15, the valve 19 of course having been opened for this purpose. Actual test runs of the process have shown that the anhydrous ammonia is immediately absorbed even when the ammonia is introduced at a rapid rate with a relatively small number of nozzles. Test runs have further established the fact that sufiicient agitation of the solution results from the mere introduction of the anhydrous ammonia under its own pressure to bring the solution to a uniform concentration and temperature throughout its entire body without the necessity of using any additional agitating equipment.

Proper agitation is essential for the required distribution of the heat of formation and solution throughout the entire body of the water or aqua ammonia.

Although the addition of any amount of anhydrous ammonia to water or an aqua ammonia solution results in heat of formation and solution, the conditions under which my method are carried out preclude such heat from increasing the temperature of the solution to a point where the vapor pressure of the solution exceeds one atmosphere. Furthermore, since no simultaneous cooling is involved no moving machinery is needed during the unloading of the truck, so skilled attention is not required.

As illustrated in the drawings, the temperature of the solution can be lowered to the desired point by circulating it through the coils 8 and passing water from any suitable sourcethrough the spray head 12a and then discharging such water to waste or using it for irrigation purposes. The above method of alternately charging and cooling the tank']. The final solution should have the required nitrogen content and can be pumped by the pump 9 from the tank 1 to the farmers tank truck for trucking to whereever it may be needed.

By way of example in one test run 37, gallons of water at 55 degrees F. Excellent absorption of the anhydrous ammonia at the rate of IO-tons per hour was thus obtained accompanied by a uniform rise in temperature throughout the body of the solution of about 28 degrees F. Here it 4 should be noted that the anhydrous ammonia was injected into the water only under its own pressure, that is, the pressure of the truck tank. On the following day and after only a slight degree of cooling a second truck load of 16 tons of anhydrous ammonia was similarly injected into the solution, the final temperature of the resulting solution being about degrees F.

The addition of the third and final charge of 16 tons of anhydrous ammonia was delayed for three days during which time the solution was cooled to 66 degrees F. The third and final charge of anhydrous ammonia resulted in an increase in the temperature of the solution of 24 degrees F. It will be noted that with several equal injections of ammonia the last injection, which is the most critical, gives the smallest temperature rise because the heat of formation and solution of this unit must heat the preceding units of ammonia injected, as well as the original water.