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Nitrogen

Nitrogen structure

CAS No:
7727-37-9
Formula:
N2
Chemical Name:
Nitrogen
Synonyms:
Nitrogen;Nitrogen gas;Nitrogen-14;Dinitrogen;Molecular nitrogen;Nitrogen (N2);Diatomic nitrogen;Nitrogen nutrition (plant);93037-13-9;156457-45-3;161728-27-4;263005-65-8;745765-07-5;778548-56-4;794449-54-0;882528-56-5;951778-24-8;1119449-41-0;1384252-82-7;2194529-25-2
Categories:
Inorganic Chemistry > Industrial Gases

Description

Solid nitrogen has a hexagonal crystal structure. Nitrogen at standard conditions is a colorless, odorless, tasteless gas. The gas is slightly soluble in H2O (2.35 parts nitrogen in 100 parts H2O at 0°C), the solubility decreasing with increasing temperature (1.55 parts nitrogen in 100 parts H2O at 20°C). Nitrogen is slightly soluble in alcohol and is essentially insoluble in most other known liquids. Nitrogen occurs naturally as approximately 78% v/v of the atmosphere. It is a nonreactive, non

Nitrogen Basic Attributes

Molecular Weight：

28.01

Exact Mass：

28.01

EC Number：

231-783-9

HScode：

2804300000

Characteristics

PSA：

47.58000

XLogP3：

0.03016

Appearance：

Nitrogen appears as a colorless odorless gas. Noncombustible and nontoxic. Makes up the major portion of the atmosphere, but will not support life by itself. Used in food processing, in purging air conditioning and refrigeration systems, and in pressurizing aircraft tires. May cause asphyxiation by displacement of air. Under prolonged exposure to fire or heat containers may rupture violently and rocket.

Density：

3.421 g/cm³

Melting Point：

-210.01 °C

Boiling Point：

-195.79 °C

Water Solubility：

slightly soluble H2O; insoluble alcohol [HAW93]

Storage Conditions：

Nitrogen is stable and chemically unreactive. It should be stored in tightly sealed metal cylinders in a cool, dry place.

Vapor Pressure：

-236 deg C at 1Pa (solid); -232 deg C at 10Pa (solid); -226.8 deg C at 100Pa (solid); -220.2 deg C at 1kPa (solid); -211.1 deg C at 10kPa (solid); -195.9 deg C at 100kPa (N2)

Vapor Density：

0.97 (vs air)

Flammability characteristics：

Non-flammable; non-toxic; suffocating

Explosive limit：

Liquid nitrogen is inherently safer than liquid oxygen or liquid air as a coolant, its ability to condense liquid oxygen out of the atmosphere can create hazards. A distillation tube containing a little solvent was cooled in liquid nitrogen while being sealed off in a blowpipe flame. A few minutes later the tube exploded, probably owing to a high internal pressure caused by evaporation of liquid oxygen which had condensed into the tube during sealing. It is possible that the atmosphere close to

Odor：

Odorless gas

Taste：

Tasteless

Safety Information

Hazard category：

2.2

Transport codes：

UN 1066 2.2

wgk germany：

safety instructions：

RTECS Number：

QW9700000

Storage features：

Warehouse ventilated, low temperature and dry; light loading and unloading

Explosive characteristics：

High heat and explosive steel cylinder

Stability/Shelf Life：

Incombustible and unreactive.

Precautionary statement(s)：

P41, P403

Hazard Statements：

H280

Nitrogen Use and Manufacturing

Methods of Manufacturing

Industrial use liquid air fractionation method to separate oxygen and nitrogen.

Uses

In manufacture of ammonia, nitric acid, nitrates, cyanides, etc.; in manufacture of explosives; in filling high-temp thermometers, incandescent bulbs; to form an inert atm for preservation of materials, for use in dry boxes or glove bags.Liquid nitrogen in food-freezing processes; in the laboratory as a coolant.Pharmaceutic aid (air displacement).

Computed Properties

Molecular Weight:28.014
XLogP3:0.1
Hydrogen Bond Acceptor Count:2
Exact Mass:28.006148008
Monoisotopic Mass:28.006148008
Topological Polar Surface Area:47.6
Heavy Atom Count:2
Complexity:8
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Carbon dioxide

Price Analysis

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Drug Function and Efficacy

Mucosolvan has the characteristics of promoting mucus elimination and dissolving secretions. It can promote the elimination of viscous secretions in the respiratory tract and reduce mucus retention, thus significantly promoting expectoration and improving respiratory conditions. When treated with Mucosolvan, the patient's mucus secretion can be restored to normal. Coughing and sputum volume are usually significantly reduced, and the surfactant of the respiratory mucosa thus exerts its normal protective function.

This ingredient has been used in drugs with the following functions (note: it does not mean that the ingredient itself has the following health functions)

Related Drugs

Ambroxol Hydrochloride Injection
Ingredients	Ambroxol hydrochloride (also known as ambroxol hydrochloride). Excipients: citric acid monohydrate, disodium hydrogen phosphate dihydrate. Sodium chloride, water for injection, nitrogen.
Indication	The synergistic treatment of this product with antibiotics (amoxicillin, cefuroxime, erythromycin, doxycycline) can increase the concentration of antibiotics in lung tissue, and there are no reports of clinically relevant adverse reactions when used in combination with other drugs.
Specifications	2ml:15mg
Manufacturer	Tianjin Pharmaceutical Heping (Tianjin) Pharmaceutical Co., Ltd.

Ambroxol Hydrochloride Injection
Ingredients	Ambroxol hydrochloride (also known as ambroxol hydrochloride). Excipients: citric acid monohydrate, disodium hydrogen phosphate dihydrate. Sodium chloride, water for injection, nitrogen.
Indication	The synergistic treatment of this product with antibiotics (amoxicillin, cefuroxime, erythromycin, doxycycline) can increase the concentration of antibiotics in lung tissue, and there are no reports of clinically relevant adverse reactions when used in combination with other drugs.
Specifications	4ml:30mg
Manufacturer	Shandong Luoxin Pharmaceutical Group Stock Co., Ltd.

Registered Holders

Beijing Novartis Pharma Co., Ltd.

China
Active
SOL S.P.A.

European Union
Active
Air Liquide

European Union
Active

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