Reactivos

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  • Publicado : 29 de septiembre de 2010
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Reactivos que se utilizan para clase de análisis químico:
a. Acido nítrico concentrado
b. Oxido de calcio
c. Sulfato de cobre
d. Cloruro de zinc
e. Carbonato desodio
f. Amoniaco
g. Cloruro de sodio
h. Cromato de potasio
i. Oxalato de amonio
j. Dimetilglioxima
k. Hidróxido de sodio
l. Sulfato de sodio
m.Clururo de fierro
n. Cloruro de cobre
o. Cloruro de plata
p. Dicromato de potasio
q. Ioduro de potasio
r. Acetato de amonio
s. Hidroxilanina
t. Fenantrolinau. Acido clorhídrico
v. Sulfato amónico ferroso
w. Éter oiisopropilico
x. Rojo de metilo
y. Fenoftaleina
z. Anaranjado de metilo

Ammonia also plays a role inboth normal and abnormal animal physiology. Ammonia is biosynthesised through normal amino acid metabolism and is toxic in high concentrations.[51] The liver converts ammonia tourea through a series of reactions known as the urea cycle. Liver dysfunction, such as that seen in cirrhosis, may lead to elevated amounts of ammonia in the blood (hyperammonemia).Likewise, defects in the enzymes responsible for the urea cycle, such as ornithine transcarbamylase, lead to hyperammonemia. Hyperammonemia contributes to the confusion and coma ofhepatic encephalopathy as well as the neurologic disease common in people with urea cycle defects and organic acidurias.[52]
Ammonia is important for normal animal acid/base balance.After formation of ammonium from glutamine, α-ketoglutarate may be degraded to produce two molecules of bicarbonate, which are then available as buffers for dietary acids. Ammonium isexcreted in the urine, resulting in net acid loss. Ammonia may itself diffuse across the renal tubules, combine with a hydrogen ion, and thus allow for further acid excretion
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