Chlorine is a greenish yellow gas at room temperature and atmospheric pressure. It is two and a half times heavier than air. It becomes a liquid at −34 °C (−29 °F).
What are the properties and uses of chlorine?
A yellowy-green dense gas with a choking smell. Chlorine kills bacteria – it is a disinfectant. It is used to treat drinking water and swimming pool water. It is also used to make hundreds of consumer products from paper to paints, and from textiles to insecticides.
What are 10 facts about chlorine?
- Symbol: Cl.
- Atomic Number: 17.
- Appearance: Greenish-yellow gas.
- Atomic Weight: 35.45.
- Group: Group 17 (Halogen)
- Period: Period 3.
- Electron Configuration: [Ne] 3s2 3p5
- Discovery: Carl Wilhelm Scheele (1774)
What are the physical changes in chlorine?
Physical properties Chlorine changes from a gas into a liquid at a temperature of -34.05°C (-29.29°F) and from a liquid to a solid at -101.00°C (-149.80°F). The gas is soluble (dissolvable) in water. It also reacts chemically with water as it dissolves to form hydrochloric acid (HCl) and hypochlorous acid (HOCl).
Does chlorine have a color?
Chlorine gas appears to be yellow-green in color. Chlorine itself is not flammable, but it can react explosively or form explosive compounds with other chemicals such as turpentine and ammonia.
Which of the following is a physical property?
Physical properties include color, density, hardness, and melting and boiling points.
Is chlorine water soluble?
Chlorine is slightly water soluble, and reacts with moisture to form hypochlorous acid (HClO) and hydrochloric acid (HCl).
What are 4 chemical properties of chlorine?
Properties: Chlorine has a melting point of -100.98°C, boiling point of -34.6°C, density of 3.214 g/l, specific gravity of 1.56 (-33.6°C), with a valence of 1, 3, 5, or 7. Chlorine is a member of the halogen group of elements and directly combines with almost all of the other elements.
Is chlorine malleable or brittle?
Chlorine is not ductile and malleable. This is because chlorine is a nonmetal and nonmetals are brittle.
What does chlorine do to water?
Drinking water chlorination is the addition of chlorine to drinking water systems. It is the most common type of drinking water disinfection. Disinfection kills bacteria, viruses, and other microorganisms that cause disease and immediate illness.
Is chlorine heavier than water?
Chlorine is a pure, amber liquid about 1.5 times heavier than water. Gas chlorine is greenish-yellow in colour. It is approximately 2.5 times heavier than air, which causes it initially to remain close to the ground in places with little air movement.
Does chlorine sink in water?
Chlorine is heavier than water and will sink to the bottom if you don’t slowly pour it into a return jet stream or brush the bottom after you add it.
What are six interesting facts about chlorine?
- Chlorine rarely occurs freely in nature.
- Chlorine is the third most abundant element in the Earth’s oceans.
- Chlorine is the 21st most abundant element in the Earth’s crust.
- Chlorine is the ninth most abundant element in the human body.
- Chlorine gas is has a yellow-green color and a strong smell.
Can you drink hard water?
Most people can safely drink hard or soft water with no side effects. Higher sodium levels in soft water may be a concern for some people, but that can be managed with a potassium-based softening system.
Can you drink soft water?
Soft water is also very safe to drink for most healthy humans. People tend to be concerned about the elevated sodium levels characteristic of soft water. In reality, soft water only contains slightly more sodium and does not approach levels harmful to healthy adults.
Why does my water feel slimy?
Slippery water is caused by the ion exchange process. In a water softener, calcium and magnesium minerals — which are responsible for hard water — are exchanged for equal amounts of sodium, or salt ions. As a result, soft water contains a small amount of sodium.
Is chlorine water good for hair?
Chlorinated water can make your hair dry and weak, which can cause breakage. While regular tap water contains chlorine, it usually doesn’t contain enough to be a problem for regular showers. But the increased amount found in pools can have damaging effects on your hair and skin with more frequent exposure.
Does chlorine freeze?
Chlorinated and non-chlorinated pools freeze at the same temperature. However, salt water pools will freeze at a slightly lower temperature. It should also be noted that above-ground pools will generally freeze at a higher temperature than inground pools.
Does chlorine dry out your skin?
The Effects of Chlorine on Your Skin Chlorine removes these oils and can leave you with dry skin, rashes, and, in extreme cases, even burns. Chlorine strips away essential oils from your skin and opens your skin’s pores, causing dry skin.
What does chlorine feel like?
Acute exposure to chlorine gas initially causes coughing, eye and nose irritation, lacrimation, and a burning sensation in the chest. Airway constriction and noncardiogenic pulmonary edema may occur. Chlorine irritates the skin and can cause burning pain, inflammation, and blisters.
Is chlorine an acid?
For example, chlorine gas and trichlor are very acidic products, meaning they have a very low pH and tend to bring the pH of the pool down.
What is the texture of chlorine?
Chlorine is a greenish-yellow, diatomic, dense gas with a sharp smell (the smell of bleach). It is not found free in nature as it combines readily with nearly all other elements. Chlorine occurs in nature mainly as common salt (NaCl), carnallite [ KMgCl2.
What toxic gas is green?
Chlorine, Cl, is a very poisonous green gas that’s extremely reactive. It’s used for sanitizing, purifying, and was used as a weapon during World War I by the Germans. But in chemistry, it is an oxidizer. Chlorine, Cl, is a green gaseous element with an atomic number of 17.
Is chlorine flammable in air?
Chlorine is not flammable, but it reacts explosively or forms explosive compounds with many common substances. Flashpoint: Chlorine is not combustible, but it enhances combustion of other substances.
What toxic gas is yellow?
Sulfur mustard is also known as “mustard gas or mustard agent,” or by the military designations H, HD, and HT. Sulfur mustard sometimes smells like garlic, onions, or mustard and sometimes has no odor. It can be a vapor (the gaseous form of a liquid), an oily-textured liquid, or a solid.