Chemistry Analysis

Develop a passion for learning

What is chlorine gas

Chlorine gas


Chlorine gas is known as a greenish-yellow gas when it is at room temperature weighs 2.5 times more air and converts to a liquid state at -34 ° C. The chlorine molecules consist of two atoms and their symbol (Cl 2 ). Chlorine combines with most elements except lighter noble gases and has the highest electrolyte among halogens so it can be replaced when interacting with them, and is soluble in water.

Chlorine is a yellowish-green chemical element that falls under the seventeenth group in the periodic table. This group is called halogens and is the second lightest element in it. It is worth mentioning that it is a poisonous gas. Flammable, but reacts with other elements to form explosive compounds such as turpentine and ammonia.

Chlorine is one of the most common manufactured chemicals in the United States and is used to increase white color in the manufacture of textiles and paper and is also used in pesticides, rubber, and solvents.

Chlorine poisoning can occur when ingested or inhaled. Chlorine reacts with water, including water in the digestive tract, to form hydrochloric acid, a toxic substance to humans.

It also affects blood circulation and causes changes in blood pH balance and decrease in blood pressure, serious eye injuries as irritation and in the worst case, temporary loss of vision can occur.

It is not difficult to diagnose cases of chlorine poisoning, because it is clear symptoms if exposed to direct chlorine on the skin should be washed with running water for 15 minutes, but if swallowing should drink milk or water directly, unless there is vomiting and convulsions In the case of inhalation, exit to air As soon as possible or go to a high place, because chlorine is heavier than air, but should immediately go to the doctor to recover from it because the recovery rates depend on the amount of chlorine causing poisoning, which can be determined by the doctor and access to appropriate treatment and there may be forestry intervention.


The following are the main uses of chlorine:

  • Bleach industry used in the manufacture of paper and cloth.
  • Manufacture of insecticides, rubber, and solvents.
  • Sterilize drinking water and pool water to kill harmful bacteria.
  • Sterilization of industrial waste and wastewater.
  • Manufacture of household products such as Candida.
  • Paper industry, cloth. Pesticide industry.
  • Manufacture of solvents, rubber.
  • Purified drinking water, swimming pools.

Note: Chlorine was used during World War I as a choking or pulmonary agent.


Chlorine gas has many physical and chemical properties, including:

  • Its atomic number is 17. Its atomic weight is 35.453.
  • Its density is 3.214 grams per cubic centimeter.
  • Its physical state at room temperature is gas.
  • It’s melting point is -101.5 ° C. Its boiling point is -34.04 ° C.
  • It has twenty-four chemical isotopes, of which two are in a stable state. Chlorine is a highly social element, as it prefers to bind with other elements rather than remain free, reacting with sodium, potassium, manganese, and the most famous compound in which chlorine enters its composition is sodium chloride, known as table salt, in addition to potassium chloride, a drug It is used to prevent or treat low potassium in the blood, while magnesium chloride is used in the prevention or treatment of magnesium deficiency.

Signs of exposure to chlorine gas

When exposed to a high concentration of chlorine gas, some signs appear on the body, including:

  • Blurred vision.
  • Redness and burning sensation on the skin, and the appearance of pimples.
  • Heartburn, nose, throat, eyes. Cough. sadness.
  • Breathing difficulty. Tearful eyes.
  • The presence of fluids in the lungs, for a few hours.
  • Whistling in the ear.
  • Nausea and vomiting.
  • Cough.
  • sadness.
  • Breathing difficulty.
  • Tearful eyes.
  • The presence of fluids in the lungs, for a few hours.

Note: Chlorine toxins should be removed from the body as soon as possible and supportive medical care such as respiratory therapies should be provided.

Information on the color and specifications of chlorine gas

Chlorine is a chemical element with the symbol C and atomic number 17, a yellow gas tending to green in color, a highly reactive element a strong oxidizing agent, among the elements, has the highest electron ratios and the third-highest electronegative, chlorine gas is first manufactured in a chemical reaction, but is not recognized as an essentially important material.

Karl Wilhelm Skill wrote a description of chlorine gas in 1774, supposing it to be a new element oxide, and in 1809, chemists suggested that gas might be a pure element, which was confirmed by Sir Humphrey Davy in 1810, who released It has a name from ancient Greek, pale green based on its color, the chlorine gas itself is not insoluble Come on, but it can react with explosives or form explosive compounds with other chemicals such as turpentine and ammonia.

The gravity of chlorine gas

The extent of poisoning caused by chlorine gas depends on the amount of chlorine the person is exposed to, the length of time the person is exposed, and when chlorine gas comes in contact with wet tissues such as the eyes, throat, and lungs, an acid is produced, which can harm these tissues.

Chlorine gas damage and risk

The risks and risks of exposure to chlorine gas include: [3] It is a dangerous oxidizing gas and can cause an explosion if exposed to heat, sunlight, or flame. Skin irritation. Severe eye irritation leading to damage. Poisoning when inhaled, and may be fatal if inhaled frequently. Irritation of the respiratory system may lead to bronchitis or chronic lung disease. Very toxic to aquatic life, and dangerous to the environment in general.

Effects of exposure to chlorine gas

The main effects of exposure to chlorine gas are:

  • Tachycardia and rapid heart rate.
  • High blood pressure followed by a decrease in pressure.
  • Cardiovascular collapse.
  • Pulmonary edema and pneumonia.
  • Feeling tingling or burning in the eyes, nose, throat, and chest after exposure to chlorine.
  • Cough with phlegm in which blood.
  • Feeling of suffocation, dizziness, nausea, vomiting.
  • Sweating, pain, irritability, and spread of pimples on the body, if the skin is exposed directly.

You may also like:

Laughing gas with formula and effects

%d bloggers like this: