What is chemical equation of bleach?
The chemical formula of household bleach is NaClO. Its chemical name is sodium hypochlorite. Though household bleach generally all has the same formula, in chemistry, bleaching can be done with a number of different substances, including hydrogen peroxide.
What is the chemical reaction of bleach?
Bleach is chlorine-based such as calcium hypochlorite (bleaching powder) and non-chlorine (peroxidase-based). Bleaching action occurs through oxidation or reduction. Chlorine bleaches work through oxidation; they break the chemical bond of the chromophore (a color-producing portion of pigment) rendering it non-reactive with light.
What is the meaning of a chemical symbol?
Chemical symbols are the abbreviations used in chemistry for chemical elements, functional groups and chemical compounds. Element symbols for chemical elements normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised.
What chemical has the symbol no?
Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula NO.It is one of the principal oxides of nitrogen.Nitric oxide is a free radical: it has an unpaired electron, which is sometimes denoted by a dot in its chemical formula (·N=O or ·NO). Nitric oxide is also a heteronuclear diatomic molecule, a class of molecules whose study spawned early modern theories of ...
What symbol means bleaching clothes?
triangleBleaching symbols A triangle shows you can use bleach. A triangle with two angled lines inside indicates non-chlorine bleach should be used.
Why is bleach a triangle?
A triangle symbol means 'bleaching allowed' when necessary in a dilute solution, so one with a cross through it is the 'do not bleach symbol'. One with diagonal lines means you can use a non-chlorine colour-safe bleach only.
What is the no bleach symbol for clothing?
Bleaching symbols on washing labels If you see an empty triangle, that means you can safely use bleach on your piece of clothing when necessary. Diagonal lines inside the triangle refer to the use of non-chlorine bleach, however in the case when the triangle is crossed out by two lines, you shouldn't use bleach at all.
What does the crossed out triangle mean?
A triangle with diagonal lines inside indicates to use color safe, non-chlorine bleach only. Source. A triangle that is crossed out means do not use any type of bleach. The garment is not colorfast, or the material is unable to hold up to bleach.
What does 30 with a line under it mean?
A label that says 30 means a water temperature of 86 degrees Fahrenheit, 40 means 104 degrees Fahrenheit, 60 means 140 degrees Fahrenheit and 95 means 203 degrees Fahrenheit.
What does F in a circle mean?
The letter F indicates a flammable solvent. The symbol F denotes dry cleaning with petroleum based solvents like R113 and hydrocarbons. The clothes with symbol F cannot be machine dry-cleaned. If there is no bar a normal cleaning process is used, if there is a bar a sensitive or mild process is used for cleaning.
What does 40 mean on clothing label?
104°F.The number 40 corresponds to 40°C, or 104°F. This is a warm wash setting that is often used for a colored wash. The number on the wash symbol indicates the maximum temperature the item should be washed at.
What does P on clothing label mean?
Dry CleaningThe Dry Cleaning symbol is a circle. For clothes that are dry clean only, the circle has a letter 'P' inside it. The clothes that should be dry-cleaned under normal conditions will have a letter 'F' inside the circle. A crossed-out circle means that you should not dry-clean the item.
What does do not wash symbol mean?
Do Not Wash: The Do Not Wash symbol is the standard wash symbol with a cross through it. If the label instructs you not to wash the item, it will have to be dry cleaned after it gets dirty – see the section on Dry Cleaning Symbols below.
What does F mean on clothing label?
Any care labels that feature a circle with an 'F' inside indicate that the garment can only be dry cleaned using a petroleum solvent. Petroleum solvent is used instead of water to clean the item.
What is the no dryer symbol?
The Do Not Tumble Dry Symbol is the standard Tumble Dryer Symbol crossed out with an “x” mark. Do not dry any items marked with this symbol in your dryer. Instead, look for drip dry or line dry symbols.
What is the symbol for a cold wash?
Some fabrics are very delicate and therefore need to be hand-washed in cold water. This will be depicted by the logo of a bucket with a hand as well as one dot which means 30ºC (cold water).
Why is bleach polar?
Bleach Chemical Structure Explained As alkaline or basic substances, all types of bleach are highly polar molecules because of the way they're bonded. These types of bonds may differ from product to product, such as the ionic bond of sodium hypochlorite molecules compared to the weak covalent bond of hydrogen peroxide.
What happens if I drink thick bleach?
Ingestion of sodium hypochlorite solution very commonly causes gastrointestinal irritation, with nausea and vomiting. Haematemesis may occur with concentrated solutions. Household bleaches are unlikely to cause severe irritation unless contact is prolonged or the amount ingested is large.
What was bleach originally used for?
It was first used to sanitize drinking water in New York City's Croton Reservoir in 1895, and is approved by the government for sanitizing equipment in the food industry. In recent years, bleach has been promoted by community health activists as a low-cost method of disinfecting the needles of intravenous drug users.
What is the chemistry behind bleach?
What is bleach? Household bleach is actually a mixture of chemicals, Its main constituent is a solution of ~3-6% sodium hypochlorite (NaOCl), which is mixed with small amounts of sodium hydroxide, hydrogen peroxide, and calcium hypochlorite.
What does the washing symbol mean?
Washing symbols are depicted as a tub filled with water. These symbols tell you the washing machine setting and the ideal water temperature for bedding. The following symbols refer to how to wash a piece of bedding, the right heat level, the best machine setting, and whether you can add bleach.
What does the black dot on the water signify?
A warm water washing cycle is symbolized by two black dots, with the water temperature reaching up to 105 degrees Fahrenheit. Warm water is best for knit materials, like cotton jersey, because the heat can better penetrate fibers to remove dirt. Hot Water. Three black dots represent hot water.
What are the strange symbols on the care tag attached to bedding?
Have you ever wondered what those strange symbols mean on the care tag attached to your bedding? Those strange icons are called laundry care symbols. While some clothing—or in this…
What is the symbol for a washing machine?
Warmer temperatures are better for more durable fabrics, including cotton and linen. The symbol for “washing machine” is a tub filled with water. The temperature level is represented by the number of dots inside the tub icon.
Where to find laundry care symbols?
Laundry care symbols are found on care tags attached to your be dding. They give instructions from the manufacturer on how best to care for your bedding. So, next time you’re placing your bedding in the washing machine, you’ll know what those strange symbols mean. This article is for informational purposes and should not replace advice ...
Does bleach kill bacteria?
It also disinfects bedding by killing bacteria. Not all bedding needs bleach, or if it does, your bedding may need a specific kind of bleach, like non-chlorine. For instance, sweat residue may cause lingering yellow stains on your sheets. If you use a basic bleach, the chemical reaction worsens these stains.
What is bleach used for?
Many bleaches have broad spectrum bactericidal properties, making them useful for disinfecting and sterilizing and are used in swimming pool sanitation to control bacteria, viruses, and algae and in many places where sterile conditions are required. They are also used in many industrial processes, notably in the bleaching of wood pulp. Bleaches also have other minor uses like removing mildew, killing weeds, and increasing the longevity of cut flowers.
When was bleach invented?
Chlorine-based bleaches, which shortened that process from months to hours, were invented in Europe in the late 18th century. Swedish chemist Carl Wilhelm Scheele discovered chlorine in 1774, and in 1785 French scientist Claude Berthollet recognized that it could be used to bleach fabrics. Berthollet also discovered sodium hypochlorite, which became the first commercial bleach, named Eau de Javel ("Javel water") after the borough in Paris where it was produced. Scottish chemist and industrialist Charles Tennant proposed in 1798 a solution of calcium hypochlorite as an alternative for Javel water, and patented bleaching powder (solid calcium hypochlorite) in 1799. Around 1820, French chemist Antoine Germain Labarraque discovered the disinfecting and deodorizing ability of hypochlorites, and was instrumental in popularizing their use for such purpose. His work greatly improved medical practice, public health, and the sanitary conditions in hospitals, slaughterhouses, and all industries dealing with animal products.
What is the name of the bleach that does not contain chlorine?
These bleaches are called 'non-chlorine bleach,' ' oxygen bleach ' or 'color-safe bleach.'
How does bleach reduce light?
A reducing bleach works by converting double bonds in the chromophore into single bonds. This eliminates the ability of the chromophore to absorb visible light. This is the mechanism of bleaches based on sulfur dioxide.
What is the niche used to bleach wool?
Reducing bleaches have niche uses, such as sulfur dioxide used to bleach wool, either as gas or from solutions of sodium dithionite; and sodium borohydride .
How does bleach work?
Bleaches work by reacting with many colored organic compounds, such as natural pigments, and turning them into colorless ones. While most bleaches are oxidizing agents (chemicals that can remove electrons from other molecules), some are reducing agents (that donate electrons).
Why is bleach a broad spectrum disinfectant?
The broad-spectrum effectiveness of most bleaches is due to their general chemical reactivity against organic compounds , rather than the selective inhibitory or toxic actions of antibiotics. They irreversibly denature or destroy many proteins, making them extremely versatile disinfectants.
Machine Wash Symbols
The wash basin symbol references washing instructions. Of course, if the wash basin has an X through it, that means the garment should not be machine washed at all.
Water Temperature
There are two ways that water temperature is indicated on clothing tags. One is through numbers, specifically the numbers 30, 40, 50 and 60. Those refer to the maximum recommended water temperature for the garment, but in Celsius instead of Fahrenheit.
