Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy-
POLY(ETHYLENE GLYCOL) BUTYL ETHER
CAS: 9004-77-7
Molecular Formula: CH3(CH2)3(OCH2CH2)nOH
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - Names and Identifiers
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - Physico-chemical Properties
| Molecular Formula | CH3(CH2)3(OCH2CH2)nOH |
| Density | 0.99g/mLat 25°C(lit.) |
| Melting Point | 60-61℃ |
| Boling Point | 4.85℃[at 101 325 Pa] |
| Flash Point | >230°F |
| Water Solubility | 989g/L at 20℃ |
| Vapor Presure | 0.33Pa at 24.85℃ |
| pKa | 14.9[at 20 ℃] |
| Storage Condition | -70°C |
| Refractive Index | n20/D 1.44(lit.) |
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - Risk and Safety
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36 - Irritating to the eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 1 |
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - Reactor for preparing polyethylene glycol butyl ether
from Baidu library
Application (Patent) No.:
CN201620695599.X
date of application:
2016-07-05
public/announcement number:
CN205838899U
date of publication/announcement:
2016.12.28
Applicant (patentee):
Fushun xiulin chemical co., ltd
Inventor:
national and provincial code:
CN210100
Summary:
The utility model relates to the field of chemical production, specifically to a reactor for the preparation of polyethylene glycol butyl ether. The invention relates to a reaction kettle for preparing polyethylene glycol butyl ether, which mainly comprises a reaction kettle cover 1 and a reaction kettle barrel 2. It is characterized in that a feed inlet 11 is provided with an atomization nozzle 16 in the reaction kettle barrel 2, and a compressed air port 22 is provided at the bottom of the reaction kettle barrel 2. The advantage is that the contact surface with the gas phase butanol is greatly increased through atomization of liquid phase materials, thus effectively accelerating the reaction speed. In addition, there is a compressed air port at the bottom of the reactor barrel. During the process of passing the compressed air, the materials are tossing and mixed evenly without stirring equipment, thereby preventing the leakage of gas-phase ethylene oxide and ethanol and the generation of static electricity, thereby ensuring safety.
Last Update：2024-01-02 23:10:35
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - One-step ethoxylation of butyl acetate to polyethylene glycol butyl ether acetate
From Titanium Academic
Author:
Zhang Jinchang ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(92 cd5d44ef751cf0) author:(Anwei)" target = "_blank"> Anwei ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(8235576 d7d063312) author:(Meng Yan)" target = "_blank"> Meng Yan/A >,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(1 ee2b81205cfbd09) author:(Zhao Hongbin)" target = "_blank"> Zhao Hongbin ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(3 f1669505b4bff4) author:(Zhou Liming)" target = "_blank"> Zhou Liming ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(37 becf9f06c7bd07) author:(Zhu Jianmin)" target = "_blank">/p>
Summary:
LDH composite oxide materials of talc in effluent were synthesized by coprecipitation method. after modification by triethylamine, it was found that they were significantly different from those before modification in XRD,FT-IR,NH3-TPD,CO2-TPD and TEM characterization. Studies have shown that the modified catalyst has weak acid and weak base dual active centers. Compared with before modification, the reaction activity of the catalyst modified by triethylamine in the ethoxylation reaction of butyl acetate is significantly improved, the content of lEO product is significantly increased, and the product distribution is narrowed.
keywords:
one-step ethoxylation hydrotalcite triethylamine modification
DOI:
10.13222/j.cnki.dc. 2014.09.013
cited:
Year:
2014
Last Update：2023-08-16 22:23:51
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - Chemical reagent-Determination of main content of ethylene glycol butyl ether-gas chromatography
From HowNet
Author:
Summary:
1 preface chemical reagent ethylene glycol butyl ether is an important organic reagent and is widely used. The current implementation standard is Q/12 HG 5483-2000. The determination of the original standard subject content is a chemical method, which has problems such as long analysis time (high boiling point) and trouble, so it is necessary to establish a fast and accurate analysis method suitable for the determination of the subject content of ethylene glycol butyl ether. After many experiments, we have selected polyethylene glycol as the fixed liquid, the thermal conductivity cell detector detection, and the quantitative determination method of the naturalization method, thus making up for the deficiency of the chemical analysis method.
keywords:
chemical reagent; Ethylene glycol butyl ether; Content; Determination; Gas chromatography
DOI:
10.3969/j.issn.1673-4076.2002.09.012
Year:
2002
Last Update：2023-08-16 22:23:51
Poly(oxy-1,2-ethanediyl),.alpha.-butyl-.omega.-hydroxy- - Reference Information
| LogP | 0.44 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 20:52:54
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