트라이에틸렌 글라이콜
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트라이에틸렌 글라이콜 속성
- 녹는점
- −7 °C(lit.)
- 끓는 점
- 125-127 °C0.1 mm Hg(lit.)
- 밀도
- 1.124 g/mL at 20 °C(lit.)
- 증기 밀도
- 5.2 (vs air)
- 증기압
- <0.01 mm Hg ( 20 °C)
- 굴절률
- n
20/D 1.455(lit.)
- 인화점
- 165 °C
- 저장 조건
- Store below +30°C.
- 용해도
- H2O: 50 mg/mL at 20 °C, 투명, 무색
- 산도 계수 (pKa)
- 14.06±0.10(Predicted)
- 물리적 상태
- 점성 액체
- 색상
- 투명하고 약간 노란색
- 냄새
- 매우 부드럽고 달콤합니다.
- 수소이온지수(pH)
- 5.5-7.0 (25℃, 50mg/mL in H2O)
- 폭발한계
- 0.9-9.2%(V)
- 수용성
- 녹는
- 감도
- Hygroscopic
- 최대 파장(λmax)
- λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.03
- Merck
- 14,9670
- BRN
- 969357
- Dielectric constant
- 2.4(25℃)
- 안정성
- 안정적인. 타기 쉬운. 강한 산화제와 호환되지 않습니다.
- InChIKey
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N
- LogP
- -1.75 at 25℃
- CAS 데이터베이스
- 112-27-6(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xi | ||
---|---|---|---|
위험 카페고리 넘버 | 36/37/38 | ||
안전지침서 | 26-36 | ||
WGK 독일 | 1 | ||
RTECS 번호 | YE4550000 | ||
자연 발화 온도 | 699 °F | ||
TSCA | Yes | ||
HS 번호 | 29094919 | ||
유해 물질 데이터 | 112-27-6(Hazardous Substances Data) | ||
독성 | LD50 in mice, rats (g/kg): 21, 15-22 orally; 7.3-9.5, 11.7 i.v. (Stenger) | ||
기존화학 물질 | KE-13201 |
트라이에틸렌 글라이콜 C화학적 특성, 용도, 생산
화학적 성질
Triethylene glycol is a clear, colorless, viscous, stable liquid with a slightly sweetish odor. Soluble in water; immiscible with benzene, toluene, and gasoline. Combustible. Because it has two ether and two hydroxyl groups its chemical properties are closety related to ethers and primary alcohols. It is a good solvent for gums, resins, nitrocellulose, steam-set printing inks and wood stains. With a low vapor pressure and a high boiling point, its uses and properties are similar to those of ethylene glycol and diethylene glycol. Because it is an efficient hygroscopic agent it serves as a liquid desiccant for removing water from natural gas. It is also used in air conditioning systems designed to dehumidify air.용도
triethylene glycol is a solvent prepared from ethylene oxide and ethylene glycol.Triethylene glycol can be used:
To prepare fatty acid gelators, which are used to gelate various edible and vegetable oils.
As a solvent to prepare superparamagnetic iron oxide nanoparticles for in situ protein purification.
As an absorbent agent in the subsea natural gas dehydration process.
생산 방법
Triethylene glycol, like diethylene glycol, is produced commercially as a by-product of ethylene glycol production. Its formation is favored by a high ethylene oxide to water ratio.정의
ChEBI: Triethylene glycol is a poly(ethylene glycol) that is octane-1,8-diol in which the carbon atoms at positions 3 and 6 have been replaced by oxygen atoms. It has a role as a plasticiser. It is a poly(ethylene glycol), a diol and a primary alcohol.일반 설명
Triethylene Glycol (TEG) is a colorless liquid with a mild odor and is denser than water. It is a member of a series of dihydroxyalcohols. TEG's primary applications are derived from its ability to absorb moisture. It is utilized as a dehydrating agent in natural gas pipelines to eliminate water from the gas before reusing it in the system. Triethylene glycol also has mild disinfectant qualities and, when volatised, is used as an air disinfectant for virus and bacteria control.반응 프로필
Triethylene glycol is a ether-alcohol derivative. The ether being relatively unreactive. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert alcohols to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. Reacts with strong oxidants. [Handling Chemicals Safely 1980. p. 932].건강위험
Under normal conditions of use, Triethylene Glycol (TEG) is not expected to cause irritation to the skin, eyes or respiratory tract. However, in applications where vapours or mists are created, inhalation may cause irritation to the respiratory system.No ceiling on worker exposure has been set by the American Conference of Governmental Hygienists (ACGIH), neither has a Workplace Exposure Limit been established for TEG. TEG is readily biodegradable, has a low potential to bioaccumulate and has low toxicity to aquatic organisms.
TEG is not flammable, unless preheated.
Safety Profile
Poison by intravenous route. Mildly toxic to humans by ingestion. Experimental reproductive effects. An eye and skin irritant. Many glycol ether compounds have dangerous human reproductive effects. Combustible when exposed to heat or flame. Can react with oxidizing materials. Explosive in the form of vapor when exposed to heat, flame, or spark. To fight fire, use alcohol foam, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS and GLYCOL ETHERS.Purification Methods
Dry the glycol with CaSO4 for 1 week, then it is repeatedly and very slowly fractionally distilled under a vacuum. Store it in a vacuum desiccator over P2O5. It is very hygroscopic. [Beilstein 1 IV 2400.]트라이에틸렌 글라이콜 준비 용품 및 원자재
원자재
준비 용품
DIBENZANTHRONE
4,7,13,16,21,24-헥사옥사-1,10-디아자비시클로[8,8,8]헥사콘산
Fmoc-8-amino-3,6-dioxaoctanoic acid
5-(2-티에닐)펜타노산
크립토픽스(R)221
Nonaethylene Glycol Monomethyl Ether
2-[2-(2-CHLOROETHOXY)ETHOXY]ETHANOL
2-[2-(2-AMINOETHOXY)ETHOXY]에탄올
Benzoic acid, 2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-4-nitro-
[1,2-ethanediylbis(oxy-2,1-ethanediyloxy)]-bis-
1-(9-MERCAPTONONYL)-3,6,9-TRIOXAUNDECAN-11-OL
1,8-디아지도-3,5-디옥사옥탄
TRIETHYLENE GLYCOL BIS(CHLOROFORMATE)
2,5,8,11,14,17-Hexaoxanonadecan-19-ol, methanesulfonate
HO-PEG3-CH2COOH
트리에틸렌글리콜모노-엔-도데실에테르
트라이에틸렌 글라이콜 공급 업체
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