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テレフタル酸

テレフタル酸 化学構造式
100-21-0
CAS番号.
100-21-0
化学名:
テレフタル酸
别名:
テレフタル酸;1,4-ベンゼンジカルボン酸;p-フタル酸;ベンゼン-1,4-ジカルボン酸;テレフタル酸標準品;ECAMSULE RELATED COMPOUND C (テレフタル酸);テレフタル酸, 98+%;テレフタラート
英語化学名:
Terephthalic acid
英語别名:
QTA;TPA;ta12;TA 12;S-LOP;Ta-33mp;TA 33LP;wr16262;nsc36973;tephthol
CBNumber:
CB8852557
化学式:
C8H6O4
分子量:
166.13
MOL File:
100-21-0.mol

テレフタル酸 物理性質

融点 :
>300 °C (lit.)
沸点 :
214.32°C (rough estimate)
比重(密度) :
1.58 g/cm3 at 25 °C
蒸気圧:
<0.01 mm Hg ( 20 °C)
屈折率 :
1.5100 (estimate)
闪点 :
260°C
貯蔵温度 :
Sealed in dry,Room Temperature
溶解性:
15mg/l (experimental)
酸解離定数(Pka):
3.51(at 25℃)
外見 :
Crystalline Powder
色:
White
水溶解度 :
slightly soluble in water (0,017 g/L at 25°C)
Merck :
14,9162
BRN :
1909333
安定性::
Stable. Combustible. Incompatible with strong oxidizing agents.
CAS データベース:
100-21-0(CAS DataBase Reference)
EPAの化学物質情報:
Terephthalic acid (100-21-0)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  Xi
Rフレーズ  36/37/38
Sフレーズ  26-36
WGK Germany  3
RTECS 番号 WZ0875000
自然発火温度 925 °F
TSCA  Yes
HSコード  2917 36 00
有毒物質データの 100-21-0(Hazardous Substances Data)
毒性 LD50 orally in Rabbit: > 6400 mg/kg
化審法 (3)-1334 優先評価化学物質
安衛法 57,57-2
PRTR法 第一種指定化学物質
絵表示(GHS)
注意喚起語
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H315 皮膚刺激 皮膚腐食性/刺激性 2 警告 P264, P280, P302+P352, P321,P332+P313, P362
H319 強い眼刺激 眼に対する重篤な損傷性/眼刺激 性 2A 警告 P264, P280, P305+P351+P338,P337+P313P
H335 呼吸器への刺激のおそれ 特定標的臓器毒性、単回暴露; 気道刺激性 3 警告
注意書き
P261 粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。
P264 取扱い後は皮膚をよく洗うこと。
P264 取扱い後は手や顔をよく洗うこと。
P304+P340 吸入した場合:空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。
P305+P351+P338 眼に入った場合:水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。
P321 特別な処置が必要である(このラベルの... を見よ)。
P332+P313 皮膚刺激が生じた場合:医師の診断/手当てを受けるこ と。
P337+P313 眼の刺激が続く場合:医師の診断/手当てを受けること。
P405 施錠して保管すること。

テレフタル酸 価格 もっと(27)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
富士フイルム和光純薬株式会社(wako) W01AFAA12527 テレフタル酸, 98+%
Terephthalic acid, 98+%
100-21-0 250g ¥4600 2021-03-23 購入
富士フイルム和光純薬株式会社(wako) W01AFAA12527 テレフタル酸, 98+%
Terephthalic acid, 98+%
100-21-0 500g ¥8350 2021-03-23 購入
東京化成工業 T0166 テレフタル酸 >99.0%(GC)(T)
Terephthalic Acid >99.0%(GC)(T)
100-21-0 500g ¥2800 2021-03-23 購入
東京化成工業 T0166 テレフタル酸 >99.0%(GC)(T)
Terephthalic Acid >99.0%(GC)(T)
100-21-0 25g ¥1600 2021-03-23 購入
関東化学株式会社(KANTO) 18072-1A テレフタル酸
Terephthalic acid
100-21-0 1kg ¥6100 2021-03-23 購入

テレフタル酸 化学特性,用途語,生産方法

外観

白色〜わずかにうすい褐色, 結晶性粉末

溶解性

水, エタノール, エーテルに不溶。DMF, アルカリに可溶。1mol/水酸化ナトリウム溶液にやや溶けやすく、エタノールに極めて溶けにくく、水にほとんど溶けない。

用途

合成樹脂原料、塗料原料

用途

ポリエステル系合繊(テトロン)、テトロンフィルム、エンプラ(ポリアリレート)の原料

説明

Terephthalic acid is the organic compound with formula C6H4(COOH)2. This colourless solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles. Several million tones are produced annually. It is one of three isomeric phthalic acids.

化学的特性

TPA is a white crystalline solid.

化学的特性

white powder

化学的特性

Terephthalic acid is poorly soluble in water and alcohols, consequently up until around 1970 most crude terephthalic acid was converted to the dimethyl ester for purification. It sublimates when heated.

来歴

Terephthalic acid came to prominence through the work of Winfield and Dickson in Britain around 1940. Earlier work by Carothers and coworkers in the United States established the feasibility of producing high molecular weight linear polyesters by reacting diacids with diols, but they used aliphatic diacids and diols. These made polyesters which were unsuitable to be spun into fibers. Winfield and Dickson found that symmetrical aromatic diacids yield high-melting, crystalline, and fiberforming materials; poly(ethylene terephthalate) (PET) has since become the largest volume synthetic fiber.

使用

Terephthalic acid (TPA) is a high-tonnage chemical, widely used in the production of synthetic materials, notably polyester fibers (poly-(ethylene terephthalate)).

使用

Terephthalic acid is a benzenepolycarboxylic acid with potential anti-hemorrhagic properties.

使用

1,4-benzenedicarboxylic acid is mainly used for the production of poly (ethylene terephthalate). Also production of plasticizer dioctyl phthalate (DOTP) and polyester plasticized agents. 1,4-benzenedicarboxylic acid and polyhydric alcohols have a condensation reaction withd iethylene glycol, triethylene glycol, glycerol, propylene glycol, butylene glycol, etc. preparation of the polyester plasticizer.

定義

ChEBI: A benzenedicarboxylic acid carrying carboxy groups at positions 1 and 4. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and isophthalic acids.

調製方法

Terephthalic acid is produced by oxidation of p-xylene by oxygen in air:
This reaction proceeds through a p-toluic acid intermediate which is then oxidized to terephthalic acid. In p-toluic acid, deactivation of the methyl by the electron withdrawing carboxylic acid group makes the methyl one tenth as reactive as xylene itself, making the second oxidation significantly more difficult . The commercial process utilizes acetic acid as solvent and a catalyst composed of cobalt and manganese salts, with a bromide promoter.

調製方法

Benzoic acid, phthalic acid and other benzene-carboxylic acids in the form of alkali-metal salts, comprise the chargestock. In a first step, the alkali-metal salts (usually potassium) are converted to terephthalates when heated to a temperature exceeding 350 °C (662 °F). The dried potassium salts (of benzoic acid or o- or isophthalic acid) are heated in anhydrous form to approximately 420 °C (788 °F) in an inert atmosphere (CO2) and in the presence of a catalyst (usually cadmium benzoate, phthalate, oxide, or carbonate). The corresponding zinc compounds also have been used as catalysts. In a following step, the reaction products are dissolved in H2O and the terephthalic acid precipitated out with dilute H2SO4. The yield of terephthalic acid ranges from 95 to 98%.

主な応用

Virtually the entire world's supply of terephthalic acid and dimethyl terephthalate are consumed as precursors to polyethylene terephthalate (PET). World production in 1970 was around 1.75 million tones. By 2006, global purified terephthalic acid (PTA) demand had exceeded 30 million tonnes.
There is a smaller, but nevertheless significant, demand for terephthalic acid in the production of poly butylene terephthalate and several other engineering polymers.

Synthesis Reference(s)

Chemistry Letters, 15, p. 299, 1986
Journal of the American Chemical Society, 82, p. 2876, 1960 DOI: 10.1021/ja01496a051
The Journal of Organic Chemistry, 44, p. 4727, 1979 DOI: 10.1021/jo00393a063

一般的な説明

White powder.

空気と水の反応

Insoluble in water.

反応プロフィール

Terephthalic acid is a carboxylic acid. Terephthalic acid donates hydrogen ions if a base is present to accept them. This "neutralization" generates substantial amounts of heat and produces water plus a salt. Insoluble in water but even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Terephthalic acid to corrode or dissolve iron, steel, and aluminum parts and containers. May react with cyanide salts to generate gaseous hydrogen cyanide. Will react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by reaction with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. React with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. May initiate polymerization reactions; may catalyze (increase the rate of) chemical reactions.

火災危険

Flash point data for Terephthalic acid are not available. Terephthalic acid is probably combustible.

安全性プロファイル

Moderately toxic by intravenous and intraperitoneal routes. Mildly toxic by ingestion. An eye irritant, Can explode during preparation. When heated to decomposition it emits acrid smoke and irritating fumes.

職業ばく露

TPA is used primarily in the production of polyethylene terephthalate polymer for the fabrication of polyester fibers and films. A high-volume production chemical in the United States.

純化方法

Purify the acid via the sodium salt which, after crystallisation from water, is re-converted to the acid by acidification with mineral acid. Filter off the solid, wash it with H2O and dry it in a vacuum. The S-benzylisothiuronium salt has m 204o (from aqueous EtOH). [Beilstein 9 IV 3301.]

不和合性

Combustible; dust may form an explosive mixture with air. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water and a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides (releasing heat, toxic and possibly flammable gases), thiosulfates and dithionites (releasing hydrogen sulfate and oxides of sulfur). 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.

廃棄物の処理

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

テレフタル酸 上流と下流の製品情報

原材料

準備製品


テレフタル酸 生産企業

Global( 358)Suppliers
名前 電話番号 ファックス番号 電子メール 国籍 製品カタログ 優位度
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20010 60
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 26734 60
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 info@tnjchem.com China 3001 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29960 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293
+86 0531-67809011 sales@sdzschem.com CHINA 2858 58
Changzhou Ansciep Chemical Co., Ltd.
+86 519 86305871
+86 519 86305879 sales@ansciepchem.com CHINA 4242 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Jinan Finer Chemical Co., Ltd
+8615508631887 +86-531-88989536
+86-531-88989539 sales@finerchem.com CHINA 1314 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5460 58
hdzhl biotechnology co., ltd
86-13032617415
sales@luchibiology.com CHINA 1275 58

100-21-0(テレフタル酸)キーワード:


  • 100-21-0
  • Terephthalic acid 98%
  • Terephthalic a
  • Acide terephtalique
  • acideterephtalique
  • acideterephtalique(french)
  • Benzene-p-dicarboxylic acid
  • Kyselina tereftalova
  • Kyselina terftalova
  • kyselinatereftalova
  • kyselinatereftalova(czech)
  • nsc36973
  • para-phthalicacid
  • p-carboxybenzoicacid
  • p-Dicarboxybenzene
  • p-dicarboxybenzoicacid
  • phthalicacid(non-specificname)
  • purifiedterephthalicacid
  • TA 12
  • ta12
  • Ta-33mp
  • Terephthalicacid (7CI,8CI)
  • Terephthalic acid Vetec(TM) reagent grade, 98%
  • 1,4-dicarboxybenzene
  • 1,4-phthalicacid
  • TerephthalicAcid,>98%
  • TerephthalicAcidPure
  • P-PHTHALIC ACID (TEREPHTHALIC ACID)
  • TEREPHTHALIC ACID (P-PHTHALIC ACID) (TPA)
  • Terephthalic acid, 99+%
  • benzenedicarbonic acid
  • テレフタル酸
  • 1,4-ベンゼンジカルボン酸
  • p-フタル酸
  • ベンゼン-1,4-ジカルボン酸
  • テレフタル酸標準品
  • ECAMSULE RELATED COMPOUND C (テレフタル酸)
  • テレフタル酸, 98+%
  • テレフタラート
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