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チオグリコール酸

チオグリコール酸 化学構造式
68-11-1
CAS番号.
68-11-1
化学名:
チオグリコール酸
别名:
チオグリコール酸;2-メルカプト酢酸;メルカプト酢酸;2-チオグリコール酸;チオバン酸;チオグリコ-ル酸;2メルカプト酢酸;チオグリコール酸(メルカプト酢酸);チオグリコール酸 メルカプト酢酸;チオグリコール酸 溶液
英語化学名:
Mercaptoacetic acid
英語别名:
TGA;usafcb-35;MEQUINDOX;USAF cb-35;thioglycolic;thiovanicacid;Thioglycolate;Thiovanic acid;Thiovanie acid;mercaptoacetic
CBNumber:
CB6477604
化学式:
C2H4O2S
分子量:
92.12
MOL File:
68-11-1.mol

チオグリコール酸 物理性質

融点 :
−16 °C(lit.)
沸点 :
96 °C5 mm Hg(lit.)
比重(密度) :
1.326 g/mL at 20 °C(lit.)
蒸気密度:
3.2 (vs air)
蒸気圧:
0.4 mm Hg ( 25 °C)
屈折率 :
n20/D 1.505(lit.)
闪点 :
126 °C
貯蔵温度 :
2-8°C
外見 :
Liquid
酸解離定数(Pka):
3.68(at 25℃)
色:
clear clear, colorless
PH:
1 (H2O, 20℃)
水溶解度 :
soluble
Sensitive :
Air Sensitive
Merck :
14,9336
BRN :
506166
暴露限界値:
TLV-TWA 1 ppm (~3.8 mg/m3) (ACGIH).
CAS データベース:
68-11-1(CAS DataBase Reference)
NISTの化学物質情報:
Acetic acid, mercapto-(68-11-1)
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  T,T+
Rフレーズ  23/24/25-34-26-24/25
Sフレーズ  25-27-28-45-36/37-28C-23
RIDADR  UN 1940 8/PG 2
WGK Germany  1
RTECS 番号 AI5950000
9-13-23
自然発火温度 662 °F
TSCA  Yes
国連危険物分類  8
容器等級  II
HSコード  29309070
有毒物質データの 68-11-1(Hazardous Substances Data)
毒性 LD50 orally in rats: 0.15 ml/kg (Deichmann, Mergard)
消防法 危険物第4類第三石油類(水溶性)
化審法 (2)-1355
安衛法 57,57-2
絵表示(GHS)
注意喚起語 Danger
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
H290 金属腐食のおそれ 金属腐食性物質 1 警告 P234, P390, P404
H301 飲み込むと有毒 急性毒性、経口 3 危険 P264, P270, P301+P310, P321, P330,P405, P501
H311 皮膚に接触すると有毒 急性毒性、経皮 3 危険 P280, P302+P352, P312, P322, P361,P363, P405, P501
H312 皮膚に接触すると有害 急性毒性、経皮 4 警告 P280,P302+P352, P312, P322, P363,P501
H314 重篤な皮膚の薬傷?眼の損傷 皮膚腐食性/刺激性 1A, B, C 危険 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H317 アレルギー性皮膚反応を起こすおそれ 感作性、皮膚 1 警告 P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H330 吸入すると生命に危険 急性毒性、吸入 1, 2 危険 P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
H331 吸入すると有毒 急性毒性、吸入 3 危険 P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H370 臓器の障害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P307+P311, P321,P405, P501
H402 水生生物に有害 水生環境有害性、急性毒性 3
注意書き
P234 他の容器に移し替えないこと。
P260 粉じん/煙/ガス/ミスト/蒸気/スプレーを吸入しないこ 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。
P270 この製品を使用する時に、飲食または喫煙をしないこ と。
P271 屋外または換気の良い場所でのみ使用すること。
P272 汚染された作業衣は作業場から出さないこと。
P273 環境への放出を避けること。
P284 呼吸用保護具を着用すること。

チオグリコール酸 価格 もっと(26)

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) W01W0120-0102 メルカプト酢酸 90.0+% (Titration)
Mercapto Acetic Acid 90.0+% (Titration)
68-11-1 25mL ¥1350 2018-12-26 購入
富士フイルム和光純薬株式会社(wako) W01W0120-0102 メルカプト酢酸 90.0+% (Titration)
Mercapto Acetic Acid 90.0+% (Titration)
68-11-1 100mL ¥2050 2018-12-26 購入
東京化成工業 M0052 チオグリコール酸 >98.0%(T)
Thioglycolic Acid >98.0%(T)
68-11-1 25g ¥2100 2018-12-04 購入
東京化成工業 M0052 チオグリコール酸 >98.0%(T)
Thioglycolic Acid >98.0%(T)
68-11-1 500g ¥6400 2018-12-04 購入
関東化学株式会社(KANTO) 12543-1A メルカプト酢酸 98%
Mercaptoacetic acid 98%
68-11-1 250mL ¥5800 2018-12-13 購入

チオグリコール酸 MSDS


Mercaptoacetic acid

チオグリコール酸 化学特性,用途語,生産方法

外観

無色~ほとんど無色, 澄明の液体

定義

本品は、次の化学式で表される有機酸である。

溶解性

水, エタノールに混和。水及びジエチルエーテルに極めて溶けやすい。

用途

可塑剤、合成ゴム助剤

用途

塩化ビニル?ゴムの安定剤、脱毛剤、パーマネントウェービング、写真薬、医薬中間物、動物繊維の加工、鉄の比色分析、重金属の除去、ポリマー改質、化粧品原料など

用途

有機合成(和光試薬時報Vol.62 No.2,p.23(1994))。

化粧品の成分用途

パーマネント.ウェーブ用還元剤、還元剤、酸化防止剤、脱毛剤

使用上の注意

不活性ガス封入

説明

Thio glycolic acid (TGA) is the organic compound HSCH2CO2H . It contains both a thiol (mercaptan) and a carboxylic acid. It is a clear liquid with a strong unpleasant odor. It is readily oxidized by air to the corresponding disulfide [SCH2CO2H]2.
TGA was developed in the 1940s for use as a chemical depilatory and is still used as such, especially in salt forms, including calcium thioglycolate and sodium thioglycolate. TGA is the precursor to ammonium thioglycolate that is used for permanents. TGA and its derivatives break the disulfide bonds in the cortex of hair. One reforms these broken bonds in giving hair a "perm." Alternatively and more commonly, the process leads to depilation as is done commonly in leather processing. It is also used as an acidity indicator, manufacturing of thioglycolates, and in bacteriology for preparation of thioglycolate media.
TGA is also used in the making of tin stabilizers often used in certain polyvinyl chloride products (such as vinyl siding).
TGA, usually as its dianion, forms complexes with metal ions. Such complexes have been used for the detection of iron, molybdenum, silver, and tin.
Thioglycolic acid is used as nucleophile in thioglycolysis reactions used on condensed tannins to study their structure.

化学的特性

Also known as mercaptoacetic acid, HSCH2COOH is a colorless liquid with a strong unpleasant odor. Used as a reagent for metals such as iron, molybdenum, silver, and tin,and in bacteriology.

化学的特性

Thioglycolic acid is a colorless liquid with a strong unpleasant odor like rotten eggs.

使用

Thioglycolic Acid is an organic compound containing both a thiol and a carboxylic acid. Thioglycolic Acid is a precursor to ammonium thioglycolate, a chemical used for permanents. Thioglycolic Acid is used in organic synthesis as a nucleophile in thioglycolysis reactions and is used as a S transfer agent for sulfonyl chloride synthesis.

使用

Sensitive reagent for iron, molybdenum, silver, tin. With ferric iron a blue color appears, and when an alkali hydroxide is added to a solution contg ferrous salts and thioglycolic acid, a yellow precipitate forms. Used in the manufacture of thioglycolates. The ammonium and sodium salts are commonly used for cold waving and the calcium salt is a depilatory. The sodium salt also is used in bacteriology in the preparation of thioglycolate media.

使用

Mercaptoacetic acid is used as a reagent formetals analysis; in the manufacture of thioglycolates, pharmaceuticals, and permanentwave solutions; and as a vinyl stabilizer.

一般的な説明

A colorless liquid with an unpleasant odor. Density 1.325 g / cm3. Used to make permanent wave solutions and depilatories. Corrosive to metals and tissue.

空気と水の反応

Readily oxidized by air. Water soluble.

反応プロフィール

Mercaptoacetic acid is readily oxidized by air . Reacts readily with other oxidizing agents as well in reactions that may generate toxic gases. Incompatible with diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials may generate heat and toxic and flammable gases. May react with acids to liberate hydrogen sulfide. Neutralizes bases in exothermic reactions. Reacts with cyanides, sulfites, nitrites, thiosulfates to generate flammable and toxic gases and heat. Reacts with carbonates and bicarbonates.

危険性

Toxic by ingestion and inhalation, strong irritant to tissue, eyes, and skin.

健康ハザード

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

健康ハザード

Mercaptoacetic acid is a highly toxic and ablistering compound. Even a 10% solutionwas lethal to most experimental animals by dermal absorption. The oral LD50 value ofundiluted acid is less than 50 mg/kg (Patty1963). The lethal dose in rabbits by skinabsorption is 300 mg/kg. The acute toxicsymptoms in test animals include weakness,respiratory distress, convulsions, irritation ofthe gastrointestinal tract, and liver damage.
Mercaptoacetic acid is a severe irritant.Contact with eyes can cause conjunctivalinflammation and corneal opacity. Skin contact can result in burns and necrosis.

火災危険

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

安全性プロファイル

Poison by ingestion, skin contact, intraperitoneal, and intravenous routes. Moderately toxic by subcutaneous route. A corrosive irritant to skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of SOx. See also MERCAPTANS and HYDROGEN SULFIDE.

職業ばく露

Thioglycolic acid is used to make thioglycolates; in sensitivity tests for iron; in formulations of permanent wave solutions and depilatories; in pharmaceutical manufacture; as a stabilizer in vinyl plastics.

応急処置

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 20 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, contact a physician, hospital or poison center at once. If the victim is unconscious or convulsing, do not induce vomiting or give anything by mouth. If conscious, do not induce vomiting. For dilute acid; ive water, milk, milk of magnesia; A(OH)3, or Ca(OH) 2. Avoid carbonates or bicarbonates. For concentrated acid, it may be dangerous to administer water or antacids. Some authorities suggest ice water or a snow slurry. Medical observation is recommended for 24-48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema or pneumonitis, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.

輸送方法

UN1940 Thyoglycolic acid, Hazard class: 8; Labels: 8-Corrosive material.

純化方法

Mix the acid with an equal volume of *benzene; the *benzene is then distilled off to dehydrate the acid. After heating to 100o to remove most of the *benzene, the residue is distilled under vacuum and stored in sealed ampoules at 3o. [Eshelman et al. Anal Chem 22 844 1960, Beilstein 3 IV 1130.]

不和合性

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). Air, strong oxidizers; bases, active metals, for example, sodium potassium, magnesium, and calcium. Readily oxidized by air. Thermal decomposition causes release of hydrogen sulfide. May attack various metals.

廃棄物の処理

Dissolve in flammable solvent and burn in furnace equipped with afterburner and alkaline scrubber.

チオグリコール酸 上流と下流の製品情報

原材料

準備製品


チオグリコール酸 生産企業

Global( 228)Suppliers
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68-11-1(チオグリコール酸)キーワード:


  • 68-11-1
  • Thioglycolic acid 85% 95%
  • 2-mercaptoacetate
  • 2-Thioglycolic acid
  • 2-thio-glycolicaci
  • 2-thioglycolicacid
  • Aceticacid,mercapto-
  • Acide thioglycolique
  • acidethioglycolique
  • acidethioglycolique(french)
  • alpha-Mercaptoacetic acid
  • thioglycolic
  • thio-glycolicaci
  • Thiovanic acid
  • thiovanicacid
  • USAF cb-35
  • usafcb-35
  • MERCAPTOACETIC ACID
  • 2-MERCAPTOACETIC ACID
  • Thiovanie acid
  • THIOGLYCOLIC ACID
  • THIOGLYCOLLIC ACID
  • Thioglyeollic acid
  • TGA
  • TRIGLYCOLIC ACID
  • Thioglycolic acid solution,Mercaptoacetic acid
  • THIOGLYCOLIC ACID REAGENT, (Mercaptoacetic Acid)
  • Mercaptoacetic acid, 98% 250ML
  • THIOGLYCOLIC ACID GR FOR ANALYSIS
  • Thioglycolic acid (TGA)
  • Acetic acid,2-Mercapto-
  • チオグリコール酸
  • 2-メルカプト酢酸
  • メルカプト酢酸
  • 2-チオグリコール酸
  • チオバン酸
  • チオグリコ-ル酸
  • 2メルカプト酢酸
  • チオグリコール酸(メルカプト酢酸)
  • チオグリコール酸 メルカプト酢酸
  • チオグリコール酸 溶液
  • 代謝産物
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