Antonio Mcgowan
Humans have been using perfume to mask or enhance their body odour since the beginning of recorded history. Ancient perfumes were made by extracting natural oils from plants through pressing and steaming. Today, perfumes are made from a variety of natural and man-made materials. Natural ingredients include flowers, grasses, spices, fruit, wood, roots, resins, balsams, leaves, gums, and animal secretions. Some of the more unusual animal products used in perfumery include castor from beavers, musk from male deer, and ambergris from sperm whales. Coal tar is also used in the manufacture of perfume. It is a complex mixture of phenols, polycyclic aromatic hydrocarbons, and heterocyclic compounds. It is used as a fixative, enabling perfume to evaporate slowly and emit odours for longer.
| Characteristics | Values |
|---|---|
| Type of Substance | Coal tar is a thick, dark liquid and a by-product of coke and coal gas production from coal. |
| Uses in Perfume | Coal tar is used as a fixative in perfumes, helping the scent to evaporate slowly and emit odours for a longer duration. |
| Other Uses | Medicinal: Coal tar is used to treat skin conditions like psoriasis and seborrheic dermatitis (dandruff). It has antifungal, anti-inflammatory, anti-itch, and antiparasitic properties. Industrial: It is used in road surfacing, as a railroad tie preservative, and in sealants for parking lots. |
| Composition | Coal tar is a complex mixture of phenols, polycyclic aromatic hydrocarbons (PAHs), and heterocyclic compounds. |
| Safety | Coal tar is listed as a known human carcinogen by the U.S. Federal Government. It can cause skin irritation, sun sensitivity, allergic reactions, and skin discolouration. It is not recommended during breastfeeding, and its safety during pregnancy is unclear. |
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What You'll Learn
Coal tar is a perfume fixative
Coal tar is a thick, dark liquid that is a byproduct of coke and coal gas production from coal. It is a complex mixture of approximately 10,000 chemicals, including phenols, polycyclic aromatic hydrocarbons (PAHs), and heterocyclic compounds. While coal tar has a strong and unpleasant odour in its pure form, it can be used as a fixative in perfumes to create a pleasant fragrance.
A fixative is a substance that enables a perfume to evaporate slowly and emit odours over an extended period. Fixatives are essential in perfumery as they help to prolong the longevity of fragrances. In addition to coal tar, other commonly used fixatives include animal substances, mosses, resins, and synthetic chemicals. Animal-derived fixatives include castor from beavers, musk from male deer, and ambergris from sperm whales.
The use of coal tar in perfumes may be surprising given its association with road construction and medical treatments. Indeed, coal tar is commonly employed in the surfacing of roads and as a preservative for railroad ties. Additionally, it has medicinal properties and is used topically to treat skin conditions such as psoriasis and seborrheic dermatitis (dandruff).
Despite its unpleasant odour in pure form, coal tar can be combined with other chemicals and fragrances to create pleasant-smelling perfumes. The process of creating perfume involves diluting ingredients with alcohol and sometimes water. The ratio of alcohol to scent determines whether the final product is classified as "eau de toilette" or cologne.
In summary, coal tar is a versatile substance that, despite its unpleasant odour in pure form, can be used as a fixative in perfumes. Through careful formulation and the addition of fragrances, coal tar can contribute to the creation of pleasant and long-lasting fragrances.
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It is a by-product of coke and coal gas production
Coal tar is a thick, dark liquid that is a by-product of coke and coal gas production. It is a type of creosote, composed of approximately 10,000 chemicals, with only about 50% of them identified. The composition of coal tar varies depending on the process and type of coal used, be it lignite, bituminous, or anthracite.
Coal tar has been utilised for various purposes since its discovery in the 17th century. It has been used in medicine since the 1800s and was found to be the main raw material for dye synthesis in 1850, leading to the establishment of an entire industry. Coal tar derivatives have analgesic properties, and one of the few that remain in use today is paracetamol.
Coal tar is also used in industrial applications, such as a preservative for railroad ties and in road surfacing. It was a component of the first sealed roads, specifically in the original development of tarmac by Edgar Purnell Hooley, where tar was covered with granite chips. Today, coal tar is still used in some parking lot sealcoat products, protecting the structural integrity of the underlying pavement.
In the context of perfume, coal tar is used as a fixative, enabling the fragrance to evaporate slowly and emit odours for a more extended period. It is combined with other chemicals to create a pleasant scent. The use of coal tar in perfumes may be controversial due to its potential side effects, such as skin irritation and sun sensitivity.
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It has antifungal, anti-inflammatory, anti-itch, and antiparasitic properties
Coal tar is a thick, dark liquid that is a by-product of coke and coal gas production from coal. It has been used for medical purposes since the 1800s, including in the treatment of skin conditions such as psoriasis, eczema, and seborrheic dermatitis (dandruff). Coal tar exhibits antifungal, anti-inflammatory, anti-itch, and antiparasitic properties, which make it a useful remedy for various skin ailments.
Coal tar's anti-inflammatory properties help reduce redness and inflammation associated with skin conditions like eczema and psoriasis. It can effectively alleviate inflammation, scaling, and itching, providing relief from irritating symptoms. The anti-inflammatory action of coal tar aids in soothing inflamed skin and reducing discomfort.
The antifungal and antiparasitic characteristics of coal tar make it effective in treating infections and parasitic infestations. It can help eliminate fungi and parasites, contributing to overall skin health and hygiene. Additionally, coal tar's anti-itch property provides relief from itching caused by skin conditions, insect bites, or allergies. By reducing the urge to scratch, coal tar helps prevent skin damage and potential secondary infections.
Coal tar is commonly used as a topical medication, applied directly to the skin or scalp. It is available in various forms, including creams, ointments, shampoos, gels, soaks, lotions, and scalp lotions. When used in combination with ultraviolet light therapy, coal tar can enhance its therapeutic effects on the skin.
While coal tar has been a traditional remedy for skin ailments, it is important to note that it may have side effects, including an unpleasant odour, skin irritation, rashes, and sun sensitivity. Due to these considerations, dermatologists often prescribe refined coal tar products in conjunction with other treatments to optimise patient outcomes and minimise potential drawbacks.
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It is used in shampoo, soap, ointment, and medication
Coal tar is a thick, dark liquid that is a by-product of coke and coal gas production from coal. It has been used for medical purposes since the 1800s and is recognised by the World Health Organization as one of the most effective and safe medicines needed in a health system.
Coal tar is available as a generic medication and over the counter. It is used to treat skin conditions such as psoriasis and seborrheic dermatitis (dandruff). It can also be used to kill and repel head lice. Coal tar has antifungal, anti-inflammatory, anti-itch, and antiparasitic properties. It can be applied topically to the skin and may be used in combination with ultraviolet light therapy.
Coal tar is used in shampoo, soap, and ointment. When used in shampoo, coal tar concentrations between 0.5% and 5% are considered safe and effective for treating psoriasis and other scalp conditions. Coal tar shampoo can also be used to treat dandruff and seborrheic dermatitis. It helps to reduce skin inflammation and relieve itching.
Coal tar soap, also known as coal tar emollient soap, is used to treat skin conditions such as eczema, psoriasis, and seborrheic dermatitis. It helps to relieve itching and reduce skin inflammation. Coal tar soap is typically used in conjunction with other treatments, such as coal tar shampoo or ointment, to provide relief from symptoms.
Coal tar ointment is often used in combination with ultraviolet light therapy to treat psoriasis. It helps to reduce the growth rate of skin cells and soften the skin's keratin. The ointment is usually applied to the affected area one or two times a day, as directed by a doctor or dermatologist. It is important to note that coal tar products may cause side effects such as skin irritation, sun sensitivity, allergic reactions, and skin discolouration.
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It is a known human carcinogen
Coal tar is a known human carcinogen, derived from the burning of coal. It is a complex mixture of hundreds of compounds, many of which are polycyclic aromatic hydrocarbons (PAHs). PAHs are a large class of chemicals that are reasonably anticipated to cause cancer. Coal tar is considered a known carcinogen by the National Toxicology Program and the International Agency for Research on Cancer.
Coal tar has been linked to skin cancer, with experimental studies finding that exposure to and the application of coal tar can produce skin tumours. Coal tar has also been associated with neurological damage, with effects including emotional and sleep disturbances, as well as loss of coordination. In addition, coal tar has been linked to cancer of the lung, bladder, kidney, and digestive tract.
The use of coal tar in cosmetics and personal care products is concerning due to its carcinogenic properties. Coal tar is sometimes used as a fixative in perfumes, helping to slow down the evaporation of odours. While the use of coal tar in perfumes may be relatively minor compared to its use in other products, it is still important to be aware of its presence and potential risks.
The primary routes of human exposure to coal tar are through inhalation, ingestion, and absorption through the skin. Coal tar is used in a variety of products, including food, textiles, and cosmetics. In the case of perfumes, exposure can occur through direct application to the skin, as well as inhalation of the fragrance. While the concentration of coal tar in perfumes may be relatively low, the potential risks associated with exposure to this known carcinogen are serious.
It is worth noting that the use of coal tar in the treatment of certain skin conditions, such as eczema, psoriasis, and dandruff, has been studied. While coal tar has been found to have antimicrobial, anti-itching, and keratolytic effects, there are conflicting findings regarding its impact on cancer risk. Some studies suggest that using coal tar alone to treat skin conditions has not been shown to increase the risk of cancer. However, an increased risk of skin cancer has been reported in patients with psoriasis who were treated with a combination of coal tar and UVB radiation. As such, it is important to carefully consider the potential risks and benefits of using products containing coal tar.
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Frequently asked questions
Coal tar is a thick, dark liquid that is a byproduct of the production of coke and coal gas from coal. It is a type of creosote.
Coal tar is used as a fixative in perfume. Fixatives enable perfume to evaporate slowly and emit odors for longer.
Coal tar is used in medicated shampoo, soap, and ointment. It is also used in the surfacing of roads and as a railroad tie preservative.
Yes, coal tar can cause skin irritation, sun sensitivity, allergic reactions, and skin discoloration. It is listed as a known human carcinogen by the U.S. Federal Government.
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