Magnesium hydroxide. Jiki da kuma sinadaran Properties. Aikace-aikace.

magnesium hydroxide (dabara MG (OH) 2) - shi ne wani inorganic sunadarai fili, magnesium hydroxide (alkaline duniya karfe). Yana nufin da kungiyar-insoluble sansanonin.

Jiki Properties na magnesium hydroxide

1. A karkashin al'ada yanayi, magnesium hydroxide ne colorless (m) lu'ulu'u da ciwon kyakkyawan raga.
2. decomposes zuwa magnesium oxide (MgO), da kuma ruwan (H2O) a zazzabi na uku da ɗari da hamsin digiri.
3. garwaya da iska daga carbon dioxide (CO2) da kuma ruwa (H2O), game da shi, ya kafa wani asali magnesium carbonate.
4. Kusan insoluble a ruwa da kuma narkewa a ammonium salts.
5. A tushe na matsakaici ƙarfi.
6. A yanayi, yakan faru a cikin wani nau'i na musamman ma'adinai - brucite.

Yadda za a samu magnesium hydroxide?

1. Wannan abu za a iya samu ta hanyar maida martani magnesium salts da daban-daban alkalies kamar:

MgCl2 (magnesium chloride) + 2NaOH (sodium hydroxide) = MG (OH) 2 (precipitated, magnesium hydroxide) + 2NaCl (sodium chloride)

MG (NO3) 2 (magnesium nitrate) + 2KOH (potassium tushe) = MG (OH) 2 (magnesium tushe precipitates) + 2KNO3 (potassium nitrate)

2. Har ila yau, wani sinadaran fili za a iya samu ta hanyar maida martani calcined dolomite da chloride (MgCl2) bayani da magnesium (Cao * MgO):

MgCl2 (magnesium chloride) + Cao * MgO (calcined dolomite) + 2H2O (ruwa) = 2Mg (OH) 2 (magnesium tushe precipitates) + CaCl2 (alli chloride)

3. Ground magnesium za a iya samu kuma ta dauki na ruwa tururi da kuma ƙarfe magnesium:

MG (magnesium karfe) + 2H2O (ruwa tururi) = MG (OH) 2 (precipitated) + H2 (hydrogen a cikin wani nau'i na gas)

A sunadarai Properties na magnesium hydroxide:

1. Wannan abu shi ne a zazzabi na 350 digiri decomposes cikin magnesium oxide da ruwa. Yana kama da wannan dauki:

MG (OH) 2 (magnesium tushen) = MgO (magnesium oxide) + 2H2O (ruwa)

2. hulda da acid. A wannan nau'i gishiri da ruwa. misalai:

MG (OH) 2 (tushe) + 2HCl (hydrochloric acid) = MgCl2 (magnesium chloride) + 2H2O (ruwa)

MG (OH) 2 (tushe) + H2SO4 (sulfuric acid) = MgSO4 (magnesium sulfate) + 2H2O (ruwa)

3. musaya tare da acidic oxides. A dauki samar da gishiri da kuma ruwan:

MG (OH) 2 (tushe) + SO3 (sulfur oxide) = MgSO4 (magnesium sulfate) + H2O (ruwa)

4. Har ila yau, magnesium hydroxide aka mayar da martani tare da zafi mai karfi Alkali mafita. A wannan nau'i gidroksomagnezaty. misalai:

MG (OH) 2 + 2NaOH (sodium tushe) = Na2 (MG (OH) 4)

MG (OH) 2 + S (OH) 2 (sulfur tushe) = Sr (MG (OH) 4)

Application:

- kamar yadda wani abinci ƙari, tsara domin nauyin da sulfur dioxide (SO2). Rajista ƙarƙashin alama E528.
- kamar yadda fokulyanta ruwa mai guba da magani.
- kamar yadda wani ƙari a daban-daban ƙuna kuma matsayin bangaren man goge baki.
- refining na sukari da kuma samar da magnesium oxide (MgO).

Musamman da hankali ne ba don amfani da sinadaran a cikin kiwon lafiya masana'antu.

Magnesium hydroxide a magani

Wannan antacid kuma laxative wakili iya neutralizing wani gishiri (hydrochloric, HCI) acid a cikin ciki da kuma rage aiki na ciki ruwan 'ya'yan itace. Kamar haka wani sakamako na magnesium hydroxide yana tare da canje-canje AAR da sakandare hypersecretion na hydrochloric acid. Har ila yau, wannan abu inganta hanji suna da sauran hanjinsu. Laxative mataki na faruwa bayan game da 2-6 hours.

Alamomi: na kullum gastritis tare da karin da kuma al'ada mugunya, duodenal miki da na ciki da rashin jin daɗi, ko epigastric zafi, ƙwannafi bayan shan taba ko shan kofi ko barasa, da kuma maƙarƙashiya.

Contraindications: Hypersensitivity zuwa magnesium hydroxide.

Abin lura shi ne cewa marasa lafiya da koda matsaloli, bayan aikace-aikace na magnesium tushe iya ci gaba gipermagnemiya (Ina nufin wani wuce haddi na magnesium a cikin jiki).

Har ila yau, a yi amfani da magani algeldrat magnesium hydroxide - kayan aiki da ake amfani da ciki miki, m duodenitis, giperatsidnom gastritis, gastralgia, na kullum pancreatitis, ƙwannafi, hyperphosphatemia, ko putrefactive fermentation dipepsii. Wannan magani an contraindicated a marasa lafiya tare da hypersensitivity, Alzheimer ta cuta, a lokacin daukar ciki ko nono-ciyar.