Nitrogen : Preparation , physical & chemical property , pharmaceutical uses , storage.

 

    Nitrogen [N₂]



Nitrogen occur in the atmosphere to exist 76% it also occur in large quantities as white salt .
     example in plant and animal tissue ( inorganic combination as protein, amino acid and alkaloid.) it is also present as nitrate in the soil formed by soil bacteria (nitrogen fixing bacteria rhizobium).

Preparation 

* nitrogen is obtained by removing the oxygen from atmospheric air high burning Phosphorus in closed container.

* when solution are sodium nitrate and ammonium chloride or sulphate is reacted nitrogen is formed.

NaNO₂ + NH₄Cl → NH₄NO₂ + NaCl ↓ 

NH₄NO₂ → N₂ + H₂O

* nitrogen is formed when ammonium dichloride is heated.

(NH₄)₂Cr₂O₇ → N₂ + Cr₂O₃ + 4H₂O


Physical Property

* nitrogen is colorless, odourless and tasteless gas.

* it is not inflammable.

* it condenses a liquid.

* it has boiling point 195.8 ℃.

* it is soluble in water(1 in 65) and alcohol(1 in 9) at normal temperature and pressure.


Chemical property

* nitrogen neither nor support in burning however burning of magnesium and Aluminium continuous in an atmosphere of Nitrogen forming nitrate.

3Mɡ + N₂  → Mɡ₃N₂

*  nitrogen is an inactive gas and combined with other element with difficulty with oxygen is combined only in presence of lightning discharge.

N₂ + O₂ → 2NO

*  nitrogen react with hydrogen under pressure 200 to 900 atmosphere and presence of catalyst .

N₂ + 3H₂ →  2NH₃

Pharmaceutical uses

* it is an antioxidant.

* it is a reducing agent.

* it is used in Packaging of medical supplies food.

* it is used to replace oxygen from container for some preparation example cod liver oil olive oil ergometrine killing.

* it is also used for killing electrical lamp.

* it is used in acid calcium cyanide and other nitrogen compound.

 Storage condition 


 since nitrogen is gas it must be stored under pressure in gas cylinder.



Comments

Post a Comment

Popular posts from this blog

hypophosphorous acid : Antioxident, preparation , physical & chemical property , uses , storage , incompatibility

   Antioxidant  a substance which prevent the oxidation of product called antioxidant.  Antioxidant are chemically reducing agent antioxidant can also call at preservative in the sense that they preserve a product being oxidized. Ideal properties of antioxidant * it should prevent the oxidation of product  * it should be effective in low concentration. * it should be non-toxic and not irritant. * it should not affect colour order and taste  of preparation . *it should be physiologically innert. Example of antioxidant * hypophosphorous acid  *Sulphur Dioxide  *sodium bisulphate  *sodium metabisulphate  *sodium thiosulphate  *nitrogen  * sodium nitrite Hypophosphorus acid [H₃PO₂] Mol.weight - 66 Hypophosphorous acid is a monobasic and reducing agent it is a colourless or slightly yellow order liquid containing 32 to 32% of hypophosphorous acid it is conventionally prepared by treating NaH₂PO₂ with an Ion exchange resin . the wate...
Read more

Gastrointestinal agent , acidifying agent, Dilute hydrochloric acid , physical property , storage condition, uses, antacid ,property,example

   Gastrointestinal agent Gastrointestinal agents are drug which produce different effect in the gastrointestinal tract. Medications for gastrointestinal diseases and symptoms include prescription and nonprescription drugs, conventional and unconventional agents, simple small molecules, complex macromolecules and large recombinant proteins. These medications are can be classified based upon their use: drugs for nausea and vomiting (antiemetics), prokinetic agents, laxatives, antidiarrheal agents, drugs for acid peptic disease, drugs for irritable bowel syndrome, inflammatory bowel disease and, of course, miscellaneous. Agents used for gastrointestinal disease rarely cause liver injury. One reason for this is that they are often locally active and result in little systemic exposure. The immunomodulatory agents used to treat inflammatory bowel disease are an exception, being given systemically, often intravenously and capable of causing liver injury, although not very frequently...
Read more

Vitamin B-7 :function , source , intake , deficiency , use.

   Vitamin B-7 [Biotin] Vitamin B 7 is also called biotin , the human body can not synthesis biotin . Biotin is co enzyme involve in metabolism of fatty acid is a type of molecule found in fat and oil . Biotin is eliminate through urine. Function *Biotin is important in helping the body to process of glucose and to metabolism fat , carbohydrates and protein it also help transfer of CO₂ . *According European food safety authority biotin contribute to nutrients metabolism . *Maintaining hair , skin , mucus membrane . *Nervous system function. *Psychological function. *Biotin contribute to healthy nail skin and hair so it is widely cosmetic industry. *It play main role of controlling diabetes . *It is maintain glucose on diabetes patient. In take 0 to 6 month.                                 5 mcg/day 7 to 12 month.                      ...
Read more