N-부틸메르캅탄

N-부틸메르캅탄 속성

N-부틸메르캅탄 C화학적 특성, 용도, 생산

개요

Butane thiol, also known as butyl mercaptan, is a volatile, clear to yellowish liquid with a fetid (extremely foul-smelling) odor, commonly described as "skunk" odor. In fact, butanethiol is structurally similar to several major constituents of a skunk's defensive spray but is not actually present in the spray. The scent of butanethiol is so strong that the human nose can easily detect it in the air at concentrations as low as 10 parts per billion. The threshold level for 1-butane thiol is reported as 1.4 ppb.

화학적 성질

Butanethiol is also known as butyl mercaptan. It is a volatile, highly flammable clear to yellowish liquid with an extremely foul-smelling, strong, garlic-, cabbageor skunk-like Butanethiol is also known as butyl mercaptan. It is a volatile, highly flammable clear to yellowish liquid with an extremely foul-smelling, strong, garlic-, cabbageor skunk-like

물리적 성질

Clear, colorless liquid with a strong garlic, cabbage, or pungent skunk-like odor. Odor threshold concentrations of 0.0028 ppb_v and 3.7 μg/m³ (1.0 ppb_v) were reported by Katz and Talbert (1930) and Nagata and Takeuchi (1990), respectively.

출처

Reported found in beef, cheddar cheese, raw chicken, cooked potatoes, beer and boiled eggs.

용도

Butanethiol is used as an industrial solvent , and as an intermediate for cotton defoliants. It is some times placed in the "stink bombs" and "stink perfumes" for prankster.

생산 방법

Butanethiol is produced from n-Butanol plus Hydrogen sulfide over catalyst.

일반 설명

Butanethiol is also known as butyl mercaptan. It is a volatile, clear to yellowish liquid with an extremely foul smell, with a strong, garlic-, cabbage-, or skunk-like odour. It is slightly oily in nature. Butanethiol is used as a chemical intermediate in the production of insecticides and herbicides. It is also used as a gas odorant.

공기와 물의 반응

Highly flammable. Slightly soluble in water.

반응 프로필

Butanethiol is incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. May liberate hydrogen sulfide upon decomposition or reaction with an acid. Incompatible with strong oxidizing agents [USCG, 1999].

위험도

Toxic by inhalation. Flammable, dangerous fire risk. Upper respiratory tract irritant.

건강위험

Exposures to butanethiol cause adverse health effects and poisoning. The symptoms of poisoning in exposed workers include, but are not limited to, asthenia, muscular weak ness, malaise, sweating, nausea, vomiting, headache, restlessness, increased respiration, incoordination, muscular weakness, skeletal muscle paralysis in most cases, heavy to mild cyanosis, lethargy and/or sedation, respiratory depression followed by coma. Severe cases of poisoning lead to death of the exposed worker. In laboratory studies, animals given intraperitoneal and oral exposures of butane thiol survived near-lethal single doses. However, after 20 days post-treatment, animals showed pathological changes involving liver and kidney damage. The pathomorpho logical changes in the liver included cloudy swelling, fatty degeneration, and necrosis. Pathological changes in the kidneys included cloudy swelling, and the lungs displayed capillary engorgement, patchy edema, and occasional hemorrhage

화학 반응

Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. An eye irritant. Dangerous fire hazard by exposure to heat, flame, sparks, or powerful oxidizers. Reacts violently with HNO3. Incompatible with acids, acid fumes, oxidizing materials, heat, flame, and sparks. To fight fire, use alcohol foam. When heated to decomposition it emits toxic SOx. See also MERCAPTANS.

Safety

Butanethiol is a very noxious and caustic chemical compound, and at sufficiently high concentrations, it produces serious health effects in both humans and animals, especially as a result of prolonged exposure. Higher concentrations can lead to unconsciousness and coma after prolonged exposure. Contact with the skin and mucous membranes causes burns, and contact with the eyes can lead to blurred vision or complete blindness.
Inhalation may cause weakness, confusion, cough, dizziness, drowsiness, headache, nausea, vomiting, and shortness of breath. The substance irritates the eyes, the skin, and the respiratory tract. It may cause effects on the thyroid and the nervous system and could cause lowering of consciousness.

잠재적 노출

Butyl mercaptan is a flammable, colorless liquid with a strong, skunk-like odor. The Odor Threshold in air is 0.00097 ppm. Molecular weight 5 90.19; Specific gravity (H2O:1) 5 0.83 @ 20C; boiling point 5 99C;freezing/melting point 5 2116C; vapor pressure 5 35 mmHg @ 20C; 75 mmHg @ 34.5C; relative vapor density (air 5 1) 5 3.1; Flash point 5 2C (cc); Autoignition temperature # 225C. Explosive limits: LEL: 1.4%; UEL: 10.2%. Hazard identification (based on NFPA-704 M Rating System): Health 1; flammability 3; reactivity 0 ?. Slightly soluble in water; solubility 5 0.06% @ 20C.

환경귀착

Chemical/Physical. Releases toxic sulfur oxide fumes when heated to decomposition (Sax and Lewis, 1987).

운송 방법

UN2347 Butyl mercaptan, Hazard Class: 3; Labels: 3—Flammable liquid

Purification Methods

Dry the thiol with CaSO4 or Na2SO4, then reflux it over magnesium, or dry with, and distil it from CaO, under nitrogen [Roberts & Friend J Am Chem Soc 108 7204 1986.] It has been separated from hydrocarbons by extractive distillation with aniline. Dissolve it also in 20% NaOH, extract with a small amount of *C6H6, then steam distil it until clear. The solution is then cooled and acidified slightly with 15% H2SO4. The thiol is distilled out, dried with CaSO4 or CaCl2, and fractionally distilled under N2 [Mathias & Filho J Phys Chem 62 1427 1958]. It has also been purified by precipitation as the lead mercaptide from alcoholic solution, then regeneration by adding dilute HCl to the residue followed by steam distillation. All operations should be carried out in a fume cupboard due to the TOXICITY and obnoxious odour of the thiol. [Beilstein 1 IV 1555.]

비 호환성

May form explosive mixture with air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Attacks some plastics and rubber

폐기물 처리

Incineration (1093C) followed by scrubbing with a caustic solution.

주의 사항

Butanethiol decomposes an heading and release toxic fumes. It reacts with strong acids, bases and strong oxidants. Workers during handling of butanethiol should be very careful, should avoid open flames, sparkings, and smoking. Chemical vapor/air mixtures cause explosion ha3 and workers should wear protective cloathing, safety goggles and breathing apparatus and should work in good ventillation

N-부틸메르캅탄 준비 용품 및 원자재

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N-부틸메르캅탄 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12834	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5889	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	18751	58
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29880	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	+86 18953170293	sales@sdzschem.com	China	2930	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
Jinan Finer Chemical Co., Ltd	+86-531-88989536 +86-15508631887	sales@finerchem.com	China	2957	58
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8807	58
Cangzhou Wanyou New Material Technology Co.,Ltd	18631714998	sales@czwytech.com	CHINA	904	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58

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