Naphthalene

Naphthalene Naphthalene CAS Number 91-20-3 Synonym(s) Napthalin Naphthene EPA Pesticide Code: 055801 Occurence(s)/Use(s) fumigant (mothballs toilet deodorant blocks) pyrotechnics chemical precursor to phthalic anhydride 2-naphthol surfectants resins dyes insecticide solvents and others component of petroleum coal

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Detection of Naphthalene Sulfonates from Highly Saline

Abstract A procedure is developed for the simultaneous determination of 1-naphthalene sulfonate 2-naphthalene sulfonate 1 5-naphthalene disulfonate 1 6-naphthalene disulfonate 2 6-naphthalene disulfonate and 2 7-naphthalene disulfonate from highly saline geothermal brines using ion-pair high-performance liquid chromatography with fluorescence detection after solid-phase extraction

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Naphthalene Poisoning (Poisoning by Naphthalene):

Naphthalene poisoning occurs primarily as a result of accidental mothball ingestion causing symptoms such as nausea vomiting hematuria and severe respiratory neurologic and hepatic effects Patient history is vital during workup while detection of methemoglobinemia and cyanosis requires prompt therapy consisting of methylene blue and exchange transfusion

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NAPHTHALENE (IARC Summary Evaluation Volume 82

NAPHTHALENE (Group 2B) For definition of Groups see Preamble Evaluation VOL : 82 (2002) (p 367) CAS No : 91-20-3 5 Summary of Data Reported and Evaluation 5 1 Exposure data Naphthalene is a commercially important aromatic hydrocarbon which is produced from coal tar and petroleum It is used mainly as an intermediate in the production of

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NAPHTHALENE

NAPHTHALENE What is NAPHTHALENE? Naphthalene is a white solid chemical that vaporizes easily It has a strong smell You can sometimes smell naphthalene in the air or in water Called white tar and tar camphor naphthalene is used in mothballs and moth flakes Petroleum and coal contain naphthalene

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Recrystallization of an Impure Sample of Naphthalene

recrystallized naphthalene and the contents of the filtrate (mother liquor) by TLC using a mixture of hexanes and ethyl acetate to develop the plate Use the final mass of naphthalene and the TLC data to evaluate whether the naphthalene has been successfully purified and how much naphthalene was lost in the process of recrystallization

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Naphthol

Naphthol either of two colourless crystalline organic compounds derived from naphthalene and belonging to the phenol family each has the molecular formula C 1 0 H 7 OH Both compounds have long been identified with the manufacture of dyes and dye intermediates they also have important uses in other areas of the chemical industry The compound 1-naphthol or α-naphthol made by heating 1

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Naphthalene Facts for Kids

Naphthalene is a crystalline white hydrocarbon with a strong smell It is best known as the main ingredient in mothballs urinal deodorizer blocks and can be used as an antiseptic In mothballs it is used as an insecticide or pesticide Naphthalene is toxic In humans being exposed to naphthalene can destroy red blood cells Naphthalene may also cause cancer

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US3075890A

naphthalene agent column liquid phase Prior art date 1958-11-24 Legal status (The legal status is an assumption and is not a legal conclusion Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed ) Expired - Lifetime Application number US775947A Inventor John M Chambers Jr Harry D Robinson

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EWG Tap Water Database

Naphthalene is a polycyclic aromatic hydrocarbon or PAH released from combustion of fossil fuels and waste incinerators and also used as a moth repellent PAHs increase the risk of cancer damage the immune nervous and reproductive systems and can harm developing fetuses

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NAPHTHALENE Toxicological Overview v1

Naphthalene Toxicological overview Key Points Kinetics and metabolism Naphthalene is readily absorbed into the systemic circulation following inhalation ingestion or dermal exposure Naphthalene is initially metabolised into a number of reactive epoxide and

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Sodium Naphthalene Sulfonate

sodium naphthalene sulfonate FDN (Na2SO4 ≤5%) Description FDN-A is a high range water reducer high concentrate naphthalene-based superplasticizer also named Naphthalene Sulfonate Formaldehyde Condensate (NSF) SNF PNS etc FDN-A is made of naphthalene sulforic acid formalin and alkali through sulphuration hydrolyzation condensation and neutralization reaction

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Recrystallization of an Impure Sample of Naphthalene

recrystallized naphthalene and the contents of the filtrate (mother liquor) by TLC using a mixture of hexanes and ethyl acetate to develop the plate Use the final mass of naphthalene and the TLC data to evaluate whether the naphthalene has been successfully purified and how much naphthalene was lost in the process of recrystallization

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U S EPA National Primary Drinking Water Regulations

Naphthalene n-Butylbenzene 1 3 5-Trimethylbenzene Hexachlorobutadiene 2 2-Dichloropropane 1 2 4-Trimethylbenzene 1 2 3-Trichlorobenzene p-Isopropyltoluene Fluorotrichloromethane Unregulated Synthetic Organic Chemicals (SOCs) - Monitoring Requirements Aldrin Butachlor Carbaryl Dicamba

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Naphthalene General Fact Sheet

Naphthalene is released to the air from the burning of coal and oil and from the use of mothballs Coal tar production wood preserving and other industries release small amounts (1) Typical air concentrations of naphthalene in cities are about 0 18 parts per billion (ppb) (1) Naphthalene has also been detected in tobacco smoke (1)

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First Aid for Naphthalene Poisoning

Naphthalene Poisoning is the accidental or intentional intake of the substance or products containing naphthalene The condition is diagnosed based upon the clinical history combination of signs and symptoms and additional tests (that may include in some

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Heat of Fusion of Naphthalene from Dortmund Data Bank

Heat of Fusion of Naphthalene The experimental data shown in these pages are freely available and have been published already in the DDB Explorer Edition The data represent a small sub list of all available data in the Dortmund Data Bank For more data or any further information please search the DDB or contact DDBST Component

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Convert grams Naphthalene to moles

50 grams Naphthalene to mol = 0 39011 mol 100 grams Naphthalene to mol = 0 78021 mol 200 grams Naphthalene to mol = 1 56042 mol 500 grams Naphthalene to mol = 3 90105 mol 1000 grams Naphthalene to mol = 7 80211 mol ›› Want other units? You can do the reverse unit conversion from moles Naphthalene to grams or enter other units to

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EWG Tap Water Database

Naphthalene is a polycyclic aromatic hydrocarbon or PAH released from combustion of fossil fuels and waste incinerators and also used as a moth repellent PAHs increase the risk of cancer damage the immune nervous and reproductive systems and can harm developing fetuses

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Naphthalene

Naphthalene Naphthalene was used as a fuel before WWII and race car drivers used it to boost octane by adding 5 mothballs to every gallon of fuel That amount caused the engine to carbonize Today many are using it to get better mileage out of gasoline and diesel engines

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Naphthalene

Naphthalene (also called white tar and tar camphor) is a white solid that evaporates easily Its present in fuels such as petroleum and coal and has been used in mothballs and moth flakes Burning tobacco or wood produces naphthalene It has a strong but not unpleasant smell

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Naphthalene (CAS No 91

1-Acetyl Naphthalene CAS NO : 941-98-0 Appearance : Colorless/Pale Yellow Clear Liquid Nature : Irritant Characteristic Odor Soluble : In Methanol Boiling Point : 300-303C Sp Gravity 20C : 1 117-1 112 Relative Density D20/4 : 1 1160-1 1200 Refractive Index nD20 : 1 6250-1 6300 Purity/Assay

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