검색어 Chemical formula에 대한 글을 관련성을 기준으로 정렬하여 표시합니다. 날짜순 정렬 모든 글 표시
검색어 Chemical formula에 대한 글을 관련성을 기준으로 정렬하여 표시합니다. 날짜순 정렬 모든 글 표시

2017년 4월 9일 일요일

Polyaniline

Polyaniline

The polyaniline (polyaniline, PANI) is a conductive high polymer kind. Like many conductive macromolecules, I have one dimension structure to range along the molecular chain that conjugate π electron system is linear. It is in use as electrode materials of the solid electrolysis condenser.

There are any questions for the mechanism while I have a few characteristic to other conductive macromolecules to be available for addition, the detachment of the proton easily by a polymerization condition (pH of the solution) and doping.

Table of contents

Molecular structure

 
Example n+m = 1 of the structure of the polyaniline, x = degree of polymerization

The structure of the polyaniline becomes like the right figure, and imine nitrogen atom (=N-) and amine nitrogen atom (-NH-) are included between six-membered rings. Degree of polymerization (x) exceeds 1,000. I have the characteristic that an electrical property greatly changes by the oxidation by the impurities addition.

  • Royko emeraldine (English :leucoemeraldine)(n = 1, m = 0, a chemical formula: (C6H4NH)n)
The polyaniline of the state returned enough is a complete insulator.
Or white is water-clear
  • エメラルディン (English: emeraldine) (n = 0.5, m = 0.5, a chemical formula: ([C6H4NH]2[C6H4N]2)n)
Unlike Royko emeraldine, I take the semi-quinoid structure that the structure of molecules and the band was modified and show high conductivity
The half oxidation is in a state and, with basic blue, is a state of the salt and dissolves in solvents such as green, NMP, and molding is easy.
  • ペルニグルアニリン (English: pernigraniline) (n = 0, m = 1, a chemical formula: C6H4N) n)
パーニグラニリン, ニグラニリン, English: I am called nigraniline
It becomes the insulator again to become benzenoid or the quinoid structure.
It is blue or a dark purple unstable material in a complete oxidation state
I am estimated to be a chief ingredient of the aniline black [1]

History

It was known that so-called aniline black was formed on the anode surface when I oxidized aniline electrochemically for a long time. This was used as black dye, but stability was bad, and the real nature of the material was unclear for a long time again.

It is not a name called the polyaniline, but Letheby succeeds in electrolysis polymerization in 1862. In 1912, the different oxidation polyaniline octamer which was in a state was identified [2]. Furthermore, I knew that active polyaniline was provided by electrolysis polymerization electrically when it was 1980 and came to attract attention as a conductivity macromolecule [3]. In late years it is studied as electrodes of the rechargeable batteries having high energy density.

Synthetic method

The polyaniline is composed from aniline by electrolysis polymerization as spoke in a history. Particularly, エメラルディン which was protonated when I become electrolysis acid in acid water solutions such as hydrochloric acid or the sulfuric acid is got by the electrode surface and shows high conductivity. At this time, a homogeneous film is provided when I sweep electric potential in the range of -0.2 - around +0.8V, but it is powdered, and conductive low polyaniline is provided when I apply constant voltage. The former is called the electric potential sweep method. On the other hand, insulating polyaniline is provided in the neutrality to alkaline liquids.

References

  1. ^ Experiment condition and aniline black of acetanilide of the synthesisKeio UniversityAcademic information repository
  2. ^ A. G. Green et. al, J. Chem. Soc., 101, 1117 (1912).
  3. ^ A. F. Diaz et. al, J. Electroanal. Chem., 111, 111 (1980).
  • For Katsumi Yoshino, Mitsunobu Onoda "macromolecule electronics" CORONA PUBLISHING CO.,LTD., 1,996 years, it is P.21-23, P.155-157, P.170-173

This article is taken from the Japanese Wikipedia Polyaniline

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.

2017년 4월 1일 토요일

2,3-hexanedione

2,3-hexanedione

2,3-hexanedione
2,3-hexanedione[1]
Identification information
CAS registration number 3848-24-6
Characteristic
Chemical formula C6H10O2
Molar mass 114.15
The appearance Yellow liquid
Smell Dairy products smell
The boiling point

128 degrees Celsius

Solubility to water 微溶
Solubility It is soluble to alcohol, an oil
Refractive index (nD) 1.413
The risk
Ignition point 28 degrees Celsius
Associated material
Related material 2,5-hexanedioneen:Hexane-2,5-dione
3,4-hexanedione
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

Kind of the organic compound that the 2,3-hexanedione (British: 2,3-hexanedione) is expressed in chemical formula C6H10O2. With butter, a fragrance such as the cheese, there is it to beer and coffee, a soybean fermentation product naturally.

Table of contents

Use

As flavor of the fruit system such as dairy products such as the butter cheese or the banana pineapple, 4.8~6.6ppm is used for an end product. It produces it from methyl butyl ketone industrially [1].

Safe

There is inflammability. The LD-50 (LD50) by the animal experiment with the transdermal administration to oral administration, the rabbit to a rat more than 5 g/kg. For acid and the alkali, it is more stable than 3,4-hexanedione [1]. I correspond to the fourth kind dangerous materials second oil by the Fire Services Act [2].

Allied item

  • The isomer which has a molecular formula of C6H10O2 as well as quality of ε-mosquito pro lactone - genuine article

Footnote

  1. ^ a b c "synthetic perfume chemistry and revision Chemical Daily ISBN 4-87326-460-X supplementary for written by product knowledge" Motoichi Indo 2,005 years
  2. ^ law information (Tokyo Kasei Kogyo Co., Ltd.)

This article is taken from the Japanese Wikipedia 2,3-hexanedione

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.

2016년 7월 17일 일요일

Phthalate diethyl

Phthalate diethyl

Phthalate diethyl
Diethyl phthalate[1][2]
Identification information
CAS registration number 84-66-2 Check
PubChem 6781
ChemSpider 13837303 Check
UNII UF064M00AF Check
Characteristic
Chemical formula C12H14O4
Molar mass 222.24 g/mol
The appearance Colorless oily liquid
Smell Approximately unscented
Density 1.12 g/cm3 (20 degrees Celsius)
The boiling point

295 degrees Celsius, 568 K, 563 degrees Fahrenheit

Solubility to water 1,080 mg/l (25 degrees Celsius)
Solubility It is soluble to alcohol, an oil
Refractive index (nD) 1.501-1.503
The risk
The main risk The toxicity
Ignition point 166 degrees Celsius
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

A kind of the phthalate ester that phthalate diethyl (フタル diethyl British: Diethyl phthalate, abbreviated designation DEP) is expressed in chemical formula C12H14O4.

Use

The main use is used in a synthetic resin plasticizer as a solvent and a reservation agent of the fragrance. The annual amount of production in Japan from 1996 through 2001 changes at approximately 700 tons [3].

Safe

The toxicity is at the same level as ethylene glycol and is smaller than the dimethyl phthalate. In the case of oral administration, the LD-50 (LD50) by the animal experiment was all 1,000 mg/kg in 6,172 mg/kg, the rabbits with 8,600 mg/kg, a mouse in a rat marmot [3]. Exercise of dermatitis and sperm inhibition is seen for the Homo sapiens, but the carcinogenicity is not confirmed [3]. I produce a poisonous gas by combustion [4]. I correspond to the fourth kind dangerous materials third oil to fix for the Fire Services Act [5].

Footnote

  1. ^ "Chemical Information Profile for Diethyl Phthalate." Integrated Laboratory Systems, Inc. March 3, 2009 reading.
  2. ^ "synthetic perfume chemistry and revision Chemical Daily ISBN 4-87326-460-x supplementary for written by product knowledge" Motoichi Indo 2,005 years
  3. ^ a b c Phthalate diethyl (PDF)Ministry of the EnvironmentEnvironmental Health Department)
  4. ^ ICSC:NENG0258 (International Chemical Safety Card for 1,2-Benzenedicarboxylic acid diethyl ester)
  5. ^ law information (Tokyo Kasei Kogyo Co., Ltd.)

This article is taken from the Japanese Wikipedia Phthalate diethyl

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.

2017년 1월 18일 수요일

Methyl yellow

Methyl yellow

Methyl yellow
Identification information
CAS registration number 60-11-7 Check
PubChem 6053
ChemSpider 5829 Check
UNII A49L8E13FD Check
EINECS 200-455-7
ChEMBL CHEMBL263116 Check
RTECS number BX7350000
Characteristic
Chemical formula C14H15N3
Molar mass 225.29 g mol-1
The appearance Yellow crystal
Melting point

111-116 degrees Celsius, 268 K, -66 degrees Fahrenheit
The resolution [1])

Solubility to water 13.6 mg/l
log POW 4.58
The risk
GHS pictogram Acute toxicity (the high toxicity)Hazardousness by oral, the suck[1]
GHS signal word Dangerous (DANGER)
H phrase H301, H351[1]
P phrase P281, P301+310[1]
EU classification Toxic T
The main risk Cancer-causing material [2]
NFPA 704
NFPA 704.svg
1
2
0
R phrase R25, R40
S phrase S36/37, S45
Permissible exposure limit OSHA regulation carcinogenesis material [2]
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).
Methyl yellow (pH indicator)
PH 2.9 or less More than pH 4.0
2.9 4.0

Because a color changes in constant acidity, the methyl yellow (English: Methyl yellow) is a chemical substance used as a PH indicator. Another name: Butter yellow, C.I. 11020

I gradually vary from red to yellow from red, 2.9 to 4.0 in pH 2.9 or less and change into yellow in 4.0 or more.

Table of contents

Carcinogenic

Is classified in a cancer-causing agent, but is called butter yellow before it and want to be added in food now [3]; [4]. When I take it in, I cause tumor of the liver.

Allied item

Source

Outside link

This article is taken from the Japanese Wikipedia Methyl yellow

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.

2017년 4월 28일 금요일

Carbon tetroxide

Carbon tetroxide

Carbon tetroxide
Identification information
CAS registration number 853,179-44-9 Check
Characteristic
Chemical formula CO4
Molar mass 76.01 g mol-1
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

Carbon (Carbon tetroxide) tetroxide is very unstable oxocarbon with a chemical formula of CO4. It was suggested as an intermediate of the substitution of the oxygen atom between carbon dioxide and oxygen in the high temperature [1].

Source

  1. ^ Yeung, L. Y.; Okumura, M.; Paci, J. T.; Schatz, G. C.; Zhang, J.; Minton, T. K. (2009). "Hyperthermal O-Atom Exchange Reaction O2 + CO2 through a CO4 Intermediate." Journal of the American Chemical Society 131 (39): 13940-13942. doi: 10.1021/ja903944k. 

This article is taken from the Japanese Wikipedia Carbon tetroxide

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.

2017년 5월 19일 금요일

Vanadium (III) iodide

Vanadium (III) iodide

Vanadium (III) iodide
Characteristic
Chemical formula VI3
The appearance Black solid
Density 5.14 g/cm3, solid
Solubility to water Soluble
Structure
Coordination structure Eight figures
Associated material
Other anions Vanadium (III) bromide
Other positive ions Vanadium (II) iodide
Titanium (III) iodide
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

Vanadium (III) (Yaw or vanadium, Vanadium(III) iodide) iodide is iodide of vanadium that a chemical formula is referred to VI3. I am provided by heating vanadium powder and iodine to around 500 degrees Celsius with a paramagnetic solid [1]. Absorbency is high, and a green ion peculiar to V(III) compound occurs when I dissolve in water.

The reaction that vanadium (III) iodide occurs because of metal vanadium and iodine can get high metal vanadium of the purity by the chemical transportation method for reversible reaction.

The crystal structure of VI3 is hexagonal close-packed structure structure same as bismuth (III) iodide, and each vanadium center accounts for a one-third of the octahedron.

Dismutation assumes that I pyrolize VI3, and vanadium (II) VI2 iodide and vanadium (IV) VI4 iodide occur. It is said that this VI4 is a chief ingredient of the volatile gas generated by the steam transportation method.

Footnote

  1. ^ Juza, D.; Giegling, D. and Schäfer, H. (1969). "Über die Vanadiniodide VJ2 und VJ3." Z. anorg. allg. Chem. 366: 121–9. doi: 10.1002/zaac.19693660303. 


This article is taken from the Japanese Wikipedia Vanadium (III) iodide

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.