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| CAS番号. | 99-94-5 |
| 化学名: | p-トルイル酸 |
| 别名: | p-トルイル酸;p-トルエン酸;4-メチル安息香酸;p-メチル安息香酸;4-メチルベンゼンカルボン酸;pトルイル酸;ｐメチル安息香酸 |
| 英語化学名: | p-Toluic acid |
| 英語别名: | PTLA;p-toluic;p-Toluylsure;P-TOLUIC ACID;4-TOLUIC ACID;P-TOLUYLIC ACID;Crithminic acid;p-carboxytoluene;para-Toluic acid;P-ToluicAcid>98% |
| CBNumber: | CB7854776 |
| 分子式: | C8H8O2 |
| 分子量: | 136.15 |
| MOL File: | 99-94-5.mol |
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| p-トルイル酸 物理性質 |
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| 水溶解度 : |
<0.1 g/100 mL at 19 ºC |
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| 安定性：: |
Stable. Incompatible with strong oxidizing agents, strong bases. |
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p-トルイル酸 化学特性,用途語,生産方法 |
化学的特性
colourless crystals or white crystalline powder |
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使用
Intermediates of Liquid Crystals |
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一般的な説明
White powder. Sublimes. |
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空気と水の反応
Fine dust dispensed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard. . Insoluble in water. |
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反応プロフィール
p-Toluic acid is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in p-Toluic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. p-Toluic acid is incompatible with strong oxidizers. p-Toluic acid is also incompatible with strong bases. . |
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火災危険
Flash point data for p-Toluic acid are not available; however, p-Toluic acid is probably combustible. |
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| p-トルイル酸 生産企業 Global( 246)Suppliers |
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99-94-5
para-Toluic acid
p-carboxytoluene
p-toluic
P-METHYLBENZOIC ACID
RARECHEM AL BO 0067
P-TOLUYLIC ACID
P-TOLUIC ACID
PTLA
SUPPORTED BENZOIC ACID
toluenecarboxylic acid
Crithminic acid
BENZOIC ACID, 4-METHYL-
4-METHYLBENZOIC ACID ZONE REFINED
4-METHYLBENZOIC ACID
4-TOLUIC ACID
AKOS BBS-00003712
P-ToluicAcid>98%
P-ToluicAcidForSynthesis
PARA -TOLUIC ACID FOR SYNTHESIS
4-Methylbenzoic acid 98%
p-Toluylsure
1% Divinylbenzene (DVB) cross-linked polystyrene, 100 - 200 mesh, 2.5 - 3.0mmol/g.
p-Tolylcarboxylic acid
4-Toluic acid ,99%
p-Toluic acid ,99%
p-Toluic acid,4-Methylbenzoic acid
4-Carboxytoluene, p-Toluic acid
p-Toluic acid, 98% 100GR
p-Toluic acid 98%
p-Toluic acid, CP,97%
p-トルイル酸
p-トルエン酸
4-メチル安息香酸
p-メチル安息香酸
4-メチルベンゼンカルボン酸
pトルイル酸
ｐメチル安息香酸
安息香酸 (液晶原料)
機能性材料
液晶原料
代謝産物
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