Is phenol a hazardous waste?
Disposal. Phenol and phenol-contaminated materials should be disposed of as hazardous waste.
Hazard Class: 6.1 (Poison) Phenol is a COMBUSTIBLE SOLID. Use dry chemical, CO2, water spray or alcohol-resistant foam as extinguishing agents. POISONOUS GASES ARE PRODUCED IN FIRE.
Waste disposal methods: Phenol may be disposed of: 1. If in the solid form, by making packages of phenol in paper or other flammable material and burning in a suitable combustion chamber, or by dissolving phenol in a flammable solvent (such as alcohol) and atomizing in a suitable combustion chamber. 2.
Do not discard any phenol, chloroform, or TRIzol™ down the sink drain. Collect pipette tips, eppendorf tubes, gloves, and other materials contaminated with phenol, chloroform, or TRIzol™ in a sealable container separate from other hazardous chemical waste.
Phenol is an aromatic compound. The chemical formula of this organic compound is C6H6O. Phenol is also known as Carbolic acid.
Hazard statement(s) H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled H314 Causes severe skin burns and eye damage. H341 Suspected of causing genetic defects. H373 May cause damage to organs through prolonged or repeated exposure. H411 Toxic to aquatic life with long lasting effects.
Aqueous solutions or buffer containing phenol may be disposed of in shatter proof bottles using the carrier. Low levels of solid waste (e.g. gels, contaminated paper towels etc) should be placed into a suitable, leak-tight container and then into a yellow bag and treated as clinical waste for incineration.
Short-term exposure to high levels of phenol has caused irritation of the respiratory tract and muscle twitching in animals. Longer-term exposure to high levels of phenol caused damaged to the heart, kidneys, liver, and lungs in animals.
Phenol is used primarily in the production of phenolic resins and in the manufacture of nylon and other synthetic fibers. It is also used in slimicides (chemicals that kill bacteria and fungi in slimes), as a disinfectant and antiseptic, and in medicinal preparations such as mouthwash and sore throat lozenges.
They act as carcinogens and cause damage to the red blood cells and the liver, even at low concentrations. Interaction of these compounds with microorganisms, inorganic and other organic compounds in water can produce substituted compounds or other moieties, which may be as toxic as the original phenolic compounds.
Is phenol a flammable liquid?
A colorless liquid when pure, otherwise pink or red. Combustible. Flash point 175°F. Must be heated before ignition may occur easily.
The decomposition products of phenol and phenoxy radical, C5H6 and C5H5, are essential building blocks of larger aromatic species such as indene and naphthalene,3–7 precursors of soot and particulate matter. Phenol is also gaining attention as a reference fuel in surrogate formulations.
Phenol is quickly broken down in the air, usually within 1–2 days. Phenol may persist in water for a week or more. Phenol that remains in soil may be broken down by bacteria or other microorganisms.
nounChemistry. Also called carbolic acid, hydroxybenzene, oxybenzene, phenylic acid. a white, crystalline, water-soluble, poisonous mass, C6H5OH, obtained from coal tar, or a hydroxyl derivative of benzene: used chiefly as a disinfectant, as an antiseptic, and in organic synthesis.
Many phenolic compounds were discovered and used long before chemists were able to determine their structures. Therefore, trivial names (i.e., vanillin, salicylic acid, pyrocatechol, resorcinol, cresol, hydroquinone, and eugenol) are often used for the most common phenolic compounds.
Phenols have unique properties and are not classified as alcohols. They have higher acidities due to the aromatic ring's tight coupling with the oxygen and a relatively loose bond between the oxygen and hydrogen.
Acute toxic effects may include the death of animals, birds, or fish, and death or low growth rate in plants. Longer term effects may include shortened lifespan, reproductive problems, lower fertility, and changes in appearance or behaviour.
Ingestion or dermal exposure to phenol concentrations greater than 5% should receive a referral to an emergency department for evaluation. Consultation with a regional poison control center in the United States is possible by calling 1-800-222-1222.
Due to their non-biodegradable and persistent characteristics, phenolic compounds can be accumulated in the water and sediment where aquatic organisms hunt and forage; upon reaching certain levels, the exposure of phenolic compounds through water and sediment may pose threats to aquatic ecosystem and human health [11, ...
If body splash potential exists, wear a butyl rubber or neoprene apron. Hand Protection: Hand protection needs to be selected based on projected use (concentration and exposure). For working with phenol at concentrations >70%, butyl rubber, Viton, Barrier and Silver Shield gloves provide good resistance.
What neutralizes phenol?
Many reports describe an intra-operative irrigation, or lavage, of the wound with alcohol to neutralize any residual phenol.
Halogenated waste
Examples Organohalogen substances, isoflurane, chloroform/phenol (trizol), fluorinated poly- mers etc.
The International Agency for Research on Cancer (IARC) and the EPA have determined that phenol is not classifiable as to its carcinogenicity to humans.
Phenol was included on LOUS due to high tonnage use in Denmark and because the substance of its harmonised classification as acutely toxic, dangerous by prolonged exposure and mutagenic in category 2.
Phenol was discovered in 1834 by Friedlieb Ferdinand Runge, who extracted it (in impure form) from coal tar. Runge called phenol "Karbolsäure" (coal-oil-acid, carbolic acid).
phenol-formaldehyde resin, also called phenolic resin, any of a number of synthetic resins made by reacting phenol (an aromatic alcohol derived from benzene) with formaldehyde (a reactive gas derived from methane). Phenol-formaldehyde resins were the first completely synthetic polymers to be commercialized.
Phenol is used to relieve pain and irritation caused by sore throat, sore mouth, or canker sores. This medicine is available without a prescription; however, your doctor may have special instructions on the proper use and dose for your medical problem. This product is available in the following dosage forms: Spray.
It is stable over time, and although it may develop a slight pink colour on exposure to light or air, this doesn't affect its potency. There is therefore no rationale for giving an expiry date for liquefied phenol, and as such, liquefied phenol solutions do not have one.
Additionally, in March 2022, EPA issued a final rule further extending the compliance dates for the prohibitions on processing and distribution and the associated recordkeeping requirement of one of these PBT chemicals, phenol, isopropylated phosphate (3:1) (PIP (3:1)) when used in certain articles until October 31, ...
Answer and Explanation:
Phenol acts as a weak acid towards the water as the p K a of phenol is lesser than the p K a of water. Hence, an acid-base reaction occurs between phenol and water in which a water molecule abstracts a proton from phenol and produces a hydronium and a phenoxide ion.
Is phenol smell toxic to humans?
Exposure to phenol may occur from the use of some medicinal products (including throat lozenges and ointments). Phenol is highly irritating to the skin, eyes, and mucous membranes in humans after acute (short-term) inhalation or dermal exposures. Phenol is considered to be quite toxic to humans via oral exposure.
Phenol gets slowly oxidised to a pink coloured compound p-benzoquinone when exposed to air.
Phenol turns pink, red or brown on exposure to air and light due to slow oxidation. The colour is due to the formation of p−benzoquinone and phenquinone.
Because phenol is acidic, it reacts with sodium hydroxide (a strong base) to form the phenoxide anion and water. When a base interacts with an acid, sometimes we call this a deprotonation reaction due to the removal of the proton (hydrogen).
Phenol is found in petroleum products such as coal tar, and creosote and can be released by combustion of wood and auto exhaust (Wallace et al. 1996). Phenol is also produced by the natural degradation of organic wastes including benzene. Phenol is a major metabolite of benzene (Rothman et al.
Keep container tightly closed and sealed until ready for use. Store in secondary containment away from moisture, strong oxidizers, strong caustics, plastics, rubber, nitric acid, water + heat, and chemically active metals, such as aluminum and magnesium powder, sodium, potassium, and lithium. Store below eye level.
The three phenolic acid compounds showed very minor decomposition at 200 ºC and their complete decomposition was observed at 300-350 ºC.
Although, results confirmed negative effects of the heating process on phenolic content, it showed an increase in antioxidant activity. The HPLC data displayed significant reduction in total amount of five identified phenolic compounds from 460.51 to 25.49 mg/25 g extract by heat treatment.
Phenol is an organic compound in which a hydroxyl group is bonded to benzene with the chemical formula C 6 H 6 O . Due to the presence of the hydroxyl group, these compounds are capable of forming hydrogen bonding with water. Hence, they dissolve in water.
Extraction of DNA containing samples with acidic phenol results in the denaturation of the DNA, and once denatured, the DNA partitions to the organic phase. This is a key feature of many RNA purification protocols, which is one of the reasons acidic buffer-saturated phenol is used.
Can you buy phenol over-the-counter?
Phenol (Chloraseptic Sore Throat) spray is an over-the-counter (OTC) medication that's used to relieve sore mouth and throat. It's sprayed into the mouth and it works quickly to ease pain.
Phenyl and phenol are often confusing. The main difference between phenol and phenyl is that phenol is composed of an oxygen atom, whereas phenyl does not have oxygen atoms bound to it. The difference between Phenyl and Phenol: Phenyl is a benzene ring, that lacks a hydrogen atom and is an unstable compound.
Notable sources of natural phenols in human nutrition include berries, tea, beer, olive oil, chocolate or cocoa, coffee, pomegranates, popcorn, yerba maté, fruits and fruit based drinks (including cider, wine and vinegar) and vegetables.
It is also present in low concentrations in a number of over-the-counter products including antiseptics, lozenges, lotions, salves and ointments such as calamine lotion. Phenol is found in small quantities in cosmetics, paints, polishes, adhesives, lacquers, varnishes and solvents.
When mixed with reagents, phenol can be an effective disinfectant for toilets, stables, floors and drains. Phenolics are used as disinfectants in household cleaners and can have an anti-inflammatory effect in mouthwash.
Phenol has been used to disinfect skin and to relieve itching. Phenol is also used as an oral analgesic or anesthetic in products such as Chloraseptic to treat pharyngitis.
Alcohols are mostly colourless, and they usually exist in the liquid state. Phenols are colourless solids that usually exist as crystals at STP. Alcohols show no impact or reaction during tests as they are mostly neutral. Phenol can change litmus paper red as they are acidic in nature.
4-isopropylphenol is a member of the class of phenols that is phenol which is carrying an isopropyl group at position 4. It has a role as a flavouring agent.
PHENOL is a category “Y” substance and depending on the discharge temperature, should be pre-washed in accordance with MARPOL requirements (Solidifying Substances).
What is phenolic waste?
Phenol and its derivatives (phenols, or phenolic compounds) are moderately water-soluble pollutants, common to the wastewaters of various industries, including oil & gas, paint manufacturing, phenolic resin production, paper and pulp factories, and pharmaceutical industries.
Phenol is an antiseptic and disinfectant used in a variety of settings. Phenol is an antiseptic and disinfectant. It is active against a wide range of micro-organisms including some fungi and viruses, but is only slowly effective against spores.
Skin Protection: Lab coat, long sleeves, impervious full foot/closed toe shoes and long pants at a minimum. If body splash potential exists, wear a butyl rubber or neoprene apron. Hand Protection: Hand protection needs to be selected based on projected use (concentration and exposure).
If this carbon is bonded to two other carbons, it is a secondary (2o) alcohol. If it is bonded to three other carbons, it is a tertiary (3o) alcohol. When the hydroxyl group is bonded directly to a benzene ring, the compound is classified as a phenol.
Acute toxic effects may include the death of animals, birds, or fish, and death or low growth rate in plants. Longer term effects may include shortened lifespan, reproductive problems, lower fertility, and changes in appearance or behaviour.
The original Lysol® product, based on phenols and used only for disinfection after cleaning, has as its descendents a plethora of modern household products used to both clean and disinfect.
Exposure to phenol may cause irritation to the skin, eyes, nose, throat, and nervous system. Some symptoms of exposure to phenol are weight loss, weakness, exhaustion, muscle aches, and pain. Severe exposure can cause liver and/or kidney damage, skin burns, tremor, convulsions, and twitching.
Lysol is a 50% solution of cresol (3-methyl phenol) in saponified vegetable oil. Thymol is an alkyl derivative of phenol obtained from volatile oils of Thymus vulgaris, Monarda punctata, or Trachyspermum ammi. It occurs in colorless crystals with a characteristic pungent odor and taste.
Phenol acts as a weak acid towards the water as the p K a of phenol is lesser than the p K a of water. Hence, an acid-base reaction occurs between phenol and water in which a water molecule abstracts a proton from phenol and produces a hydronium and a phenoxide ion.
Phenol is moderately soluble in water - about 8 g of phenol will dissolve in 100 g of water. If you try to dissolve more than this, you get two layers of liquid.