ammonium


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ammonium

 [ah-mo´ne-um]
a hypothetical radical, NH4, forming salts analogous to those of the alkaline metals.
ammonium carbonate a mixture of ammonium compounds used as a liquefying expectorant in the treatment of chronic bronchitis and similar lung disorders. It is sometimes used as a reflex stimulant in “smelling salts” because of the strong ammonia odor it gives off.
ammonium chloride colorless or white crystals, with a cool, salty taste, used as an expectorant because it liquefies bronchial secretions. In the body it is changed to urea and hydrochloric acid, and thus is useful in acidifying the urine and increasing the rate of urine flow. Excessive dosage may produce acidosis.
ammonium lactate lactic acid neutralized with ammonium hydroxide, applied topically in the treatment of ichthyosis vulgaris and xerosis.

am·mo·ni·um

(ă-mō'nē-yŭm),
An ion, NH4+, formed by combining NH3 and H+ (the pKa value is 9.24); acts as a univalent metal in forming ammonium compounds.

storage lesion

Transfusion medicine The constellation of changes occurring in a unit of packed red cells during storage. See Red cell preservatives.
Storage lesions
Ammonium to 470 µmol/L–US: 800 µg/dL
Free Hb in plasma from 82 to 6580 mg/L–US: 8.2 to 658 mg/dL
K+ from 4.2 to 78.5 mmol/L–US: 4.2 to 78.5 mEq/L
ATP from 100% to 45%
2,3 DPG to < 10% of original levels–replenished within 24 hours of transfusion
Labile proteins, eg complement, fibronectin and coagulation factors ↓ to negligible
Na+ from 169 to 111 mmol/L–US: 169 to 111 mEq/L
pH from 7.6 to 6.7
Adverse physiologic effects of stored blood is negligible in the absence of a previous compromise of the Pt's–recipient's status

am·mo·ni·um

(ă-mō'nē-ŭm)
The ion, NH4+, formed by combination of NH3 and H+; behaves as a univalent metal in forming compounds.
References in periodicals archive ?
Effect of natural zeolite on methane production for anaerobic digestion of ammonium rich organic sludge, Bioresource Technology 96: 459-464.
The global, Far East and Baltic nations ammonium sulphate market is segmented on the basis of production process and region.
After West, some legislation passed authorizing fire officials to inspect ammonium nitrate facilities and fine them as much as a few thousand dollars if they found hazards.
Table (2), ammonium nitrate gave higher root yield under 75% ETc by about (13148.4 kg/fed).
A 300,000 t/y ammonia unit, built by Creusot-Loire, was designed to meet the needs of the nitric acid and ammonium nitrate facilities and those of the phosphate fertiliser complex.
The GAO report noted that more than 850,000 tons of ammonium nitrate were used in the United States during 2012.
20 mL of standard ammonium solution or sample solution with a concentration range of 0.032-15.0 [micro]mol/L was exactly measured into a polypropylene bottle.
There are several methods for manufacturing ammonium nitrate, such as the Kaltenbach, Stamicarbon, SBA, ICI (nitram), C&I Girdler, Montedison, Uhde, Fisons, and Stengel processes.
Simultaneous determination of glufosinate ammonium and its metabolites is difficult due to their high polarity, low volatility, high aqueous solubility, and lack of either UV chromophore or fluorescence [12-14].
Ammonium chloride NH 4 Cl is an inorganic compound.
Summary: Hyderabad (Telangana) [India], Aug 29 (ANI): A person was arrested and 10 metric tons of Ammonium Nitrate loaded in a truck was seized by police deployed at Rajiv Gandhi International Airport in Hyderabad.
M2 PRESSWIRE-August 20, 2019-: Ammonium Sulphate Market Share Report, Growth Trends, Industry News, Application, Segmentation, Demand, Scope, Business Size by 2026