Web나프탈렌 ( 영어: naphthalene )은 벤젠 고리가 2개 있는 방향족 탄화수소 로 승화 성이 있다. 비늘 모양의 백색 결정으로 분자량은 128, 녹는점은 80.3°C, 끓는점은 217.97°C이며, 비중은 0.975 (25°C)이다. 분자식은 C 10 H 8 로 쓴다. 물 에는 녹지 않고, 에탄올 에는 녹는다 ... Web8 de abr. de 2024 · If the exposure is high it may also cause nausea, tremor, headaches, etc. Naphthalene is a combustible solid, the vapor of naphthalene when heated is very …
Naphthalene in Drinking Water Contamination - KnowYourH2O
WebThe ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. Some substance identifiers may have been claimed confidential, or may ... Naphthalene and its alkyl homologs are the major constituents of creosote. Trace amounts of naphthalene are produced by magnolias and some species of deer, as well as the Formosan subterranean termite, possibly produced by the termite as a repellant against "ants, poisonous fungi and nematode worms." Ver mais Naphthalene is an organic compound with formula C 10H 8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 Ver mais In the early 1820s, two separate reports described a white solid with a pungent odor derived from the distillation of coal tar. In 1821, John Kidd cited these two disclosures and … Ver mais Reactions with electrophiles In electrophilic aromatic substitution reactions, naphthalene reacts more readily than benzene. For example, chlorination and bromination of naphthalene proceeds without a catalyst to give 1-chloronaphthalene Ver mais Naphthalene is used mainly as a precursor to derivative chemicals. The single largest use of naphthalene is the industrial production of Ver mais A naphthalene molecule can be viewed as the fusion of a pair of benzene rings. (In organic chemistry, rings are fused if they share two or more … Ver mais Most naphthalene is derived from coal tar. From the 1960s until the 1990s, significant amounts of naphthalene were also produced from heavy petroleum fractions during petroleum refining, but present-day production is mainly from coal tar. Approximately 1.3M … Ver mais Exposure to large amounts of naphthalene may damage or destroy red blood cells, most commonly in people with the inherited condition … Ver mais costco auto center locations
Mothballs Can Be Poisonous
Web8 de abr. de 2024 · When naphthalene is absorbed into the soil, it becomes a pollutant. Scientists discovered microorganisms capable of digesting naphthalene in the soil in 2003, decreasing the dangers it brings to the environment. WebExposure to large amounts of naphthalene may also cause nausea, vomiting, diarrhea, blood in the urine, and a yellow color to the skin. Animals sometimes develop cloudiness … Web11 de jan. de 2024 · People exposed to naphthalene, especially in large amounts or over a long period of time, may suffer from one of many different types of adverse effects, including: Hemolytic anemia - this is... lvopol bw