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シュウ酸

シュウ酸 化学構造式
144-62-7
CAS番号.
144-62-7
化学名:
シュウ酸
别名:
1,2-ジヒドロキシ-1,2-エタンジオン;エタン二酸;シユウ酸;しゅう酸(無水);蓚酸;しゅう酸,無水;0.0125MOL/Lしゅう酸溶液(N/40);0.05MOL/Lしゅう酸溶液(N/10);0.5MOL/Lしゅう酸溶液(1N);0.05MOL/L(N/10) しゅう酸溶液;シュウ酸 SOLUTION VOLUMETRIC,0.05 M (COOH)2 (0.1N);シュウ酸 SOLUTION VOLUMETRIC,0.1 M (COOH)2 (0.2N);シュウ酸 SOLUTION VOLUMETRIC,0.5 M (COOH)2 (1N);シュウ酸濃縮溶液 FOR 1L STANDARD SOLUTION,0.005 M (COOH)2 (0.01N);シュウ酸濃縮溶液 FOR 1L STANDARD SOLUTION,0.05 M (COOH)2 (0.1N);0.005MOL/L しゅう酸溶液(N/100);0.01MOL/L しゅう酸溶液(N/50);0.05MOL/L しゅう酸溶液(N/10);0.5MOL/L しゅう酸溶液(1N);1/80MOL/L しゅう酸溶液(N/40)
英語化学名:
Oxalic acid
英語别名:
oxalic;caosuan;Aktisal;Aquisal;HOOCCOOH;Ethanedi;BETZ 0295;Kleesαure;Oxaalzuur;Oxalsαure
CBNumber:
CB0323998
化学式:
C2H2O4
分子量:
90.03
MOL File:
144-62-7.mol

シュウ酸 物理性質

融点 :
189.5 °C (dec.)(lit.)
沸点 :
365.1°C (estimate)
比重(密度) :
0.99 g/mL at 25 °C
蒸気密度:
4.4 (vs air)
蒸気圧:
<0.01 mm Hg ( 20 °C)
屈折率 :
1.4261 (estimate)
闪点 :
101-157°C
貯蔵温度 :
Store below +30°C.
溶解性:
water: soluble108g/L at 25°C
酸解離定数(Pka):
1.23(at 25℃)
外見 :
Liquid
色:
White
PH:
1 (100g/l, H2O, 20℃)
酸塩基指示薬変色域(pH):
6 - 8 at 25 °C
水溶解度 :
90 g/L (20 ºC)
Sublimation :
101-157 ºC
Merck :
14,6911
BRN :
385686
Henry's Law Constant:
1.43 at pH 4 (quoted, Gaffney et al., 1987)
暴露限界値:
NIOSH REL: TWA 1, STEL 2, IDLH 500; OSHA PEL: TWA 1; ACGIH TLV: TWA 1, STEL 2 (adopted).
安定性::
Stable, but moisture sensitive. Incompatible with metals.
InChIKey:
MUBZPKHOEPUJKR-UHFFFAOYSA-N
CAS データベース:
144-62-7(CAS DataBase Reference)
NISTの化学物質情報:
Oxalic acid(144-62-7)
EPAの化学物質情報:
Oxalic acid (144-62-7)
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  Xn
Rフレーズ  21/22-63-34-41
Sフレーズ  24/25-23-36/37/39-27-26-39-37-36-36/37
RIDADR  UN 3261 8/PG 3
WGK Germany  1
RTECS 番号 RO2450000
TSCA  Yes
国連危険物分類  8
容器等級  III
HSコード  29171110
有毒物質データの 144-62-7(Hazardous Substances Data)
毒性 LD50 orally in Rabbit: 375 mg/kg
化審法 一般化学物質
安衛法 57-2
毒劇物取締法 III
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
H302 飲み込むと有害 急性毒性、経口 4 警告 P264, P270, P301+P312, P330, 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
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
注意書き
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ 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)。

シュウ酸 価格 もっと(37)

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) W01CHDASB-00015425 蓚酸
Oxalic Acid
144-62-7 250mg ¥15900 2021-03-23 購入
富士フイルム和光純薬株式会社(wako) W01CHDASB-00015425 蓚酸
Oxalic Acid
144-62-7 1g ¥36300 2021-03-23 購入
関東化学株式会社(KANTO) 31046-00 しゅう酸(無水) >97.0%(T)
Oxalic acid anhydrous >97.0%(T)
144-62-7 500g ¥3700 2021-03-23 購入
関東化学株式会社(KANTO) 31046-01 しゅう酸(無水) >95.0%(T)
Oxalic acid anhydrous >95.0%(T)
144-62-7 500g ¥3600 2021-03-23 購入
Sigma-Aldrich Japan 194131 シュウ酸 98%
Oxalic acid 98%
144-62-7 5g ¥2010 2021-03-23 購入

シュウ酸 化学特性,用途語,生産方法

外観

無色澄明の液体

溶解性

水及びエタノールと任意の割合で混和する。

用途

有機合成原料、漂白剤。

用途

ブドウ糖等の製造、染料用

用途

微量成分の酸化還元容量分析。

用途

水アメ?ブドウ糖の製造(加水分解用),分析用試薬,希土類精製,有機合成原料 (NITE CHRIP)

用途

酸化性物質の定量(過マンガン酸カリウム溶液と併用)

化学的特性

white crystalline powder

化学的特性

Oxalic acid is a colorless, odorless powder, or granular solid. The anhydrous form (COOH)2 is an odorless, white solid; the solution is a colorless liquid.

物理的性質

Colorless and odorless rhombic crystals. Hygroscopic.

使用

Oxalic acid is made by the action of nitric acid on sugars, starch, or cellulose. This highly poisonous colorless crystal is soluble in water, alcohol, and ether. It was used to make ferric oxalate, as a preservative for pyrogallic acid developers, as a sensitizer for platinum papers, and to reduce the density of cyanotype prints.

使用

Oxalic acid was used: · in the synthesis of hemicellulose hydrolysates of yellow poplars; · in the synthesis of three-dimensionally ordered macroporous metal oxides or carbonates via templating with polystyrene spheres; · as supporting electrolyte in the electrochemical synthesis of polyaniline-polypyrrole composite coatings.

使用

An impurity of oxaliplatin which is a coordination complex that is used in cancer chemotherapy. A reducing agent and its conjugate base, known as oxalate (C2O42?), is a useful chelating agent for metal cations.

定義

ChEBI: An alpha,omega-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2.

定義

A white crystalline organic acid that occurs naturally in rhubarb, sorrel, and other plants of the genus Oxalis. It is slightly soluble in water, highly toxic, and used in dyeing and as a chemical reagent.

調製方法

Many industrial processes have been employed for the manufacture of oxalic acid since it was first synthesized. The following processes are in use worldwide: oxidation of carbohydrates, the ethylene glycol process, the propylene process, the dialkyl oxalate process, and the sodium formate process. Sodium formate process is no longer economical in the leading industrial countries, except for China.
Nitric acid oxidation is used where carbohydrates, ethylene glycol, and propylene are the starting materials. The dialkyl oxalate process is the newest, where dialkyl oxalate is synthesized from carbon monoxide and alcohol, then hydrolyzed to oxalic acid. This process has been developed by UBE Industries in Japan.Many attempts have been made to synthesize oxalic acid by electrochemical reduction of carbon dioxide in either aqueous or nonaqueous electrolytes.

反応性

The reactions of oxalic acid, including the formation of normal and acid salts and esters, are typical of the dicarboxylic acids class. Oxalic acid, however, does not form an anhydride.
On rapid heating, oxalic acid decomposes to formic acid, carbon monoxide, carbon dioxide, and water. In aqueous solution, it is decomposed by uv, x-ray, or γ -radiation with the liberation of carbon dioxide. Photodecomposition also occurs in the presence of uranyl salts.
Oxalic acid is a mild reducing agent, and is oxidized by potassium permanganate in acid solution to give carbon dioxide and water. Oxalic acid is catalytically reduced by hydrogen in the presence of ruthenium catalyst to ethylene glycol, and electronically reduced to glyoxylic acid.
Oxalic acid reacts with various metals to form metal salts, which are quite important as the derivatives of oxalic acid. It also reacts easily with alcohols to give esters.

一般的な説明

Odorless white solid. Sinks and mixes with water.

空気と水の反応

Water soluble. Hygroscopic

反応プロフィール

Oxalic acid is hygroscopic and sensitive to heat. Oxalic acid may react violently with furfuryl alcohol, silver, sodium, perchlorate, sodium hypochlorite, strong oxidizers, sodium chlorite, acid chlorides, metals and alkali metals. . The heating of mixtures of Oxalic acid and urea has lead to explosions. This is due to the rapid generation of the gases, CO2, CO, and NH3, [Praxis Naturwiss. Chem., 1987, 36(8), 41-42]. Oxalic acid and urea react at high temperatures to form toxic and flammable ammonia and carbon monoxide gasses, and inert CO2 gas [Von Bentzinger, R. et al., Praxis Naturwiss. Chem., 1987, 36(8), 41-42].

健康ハザード

As dust or as a solution, can cause severe burns of eyes, skin, or mucous membranes. Ingestion of 5 grams has caused death with symptoms of nausea, shock, collapse, and convulsions coming on rapidly. Repeated or prolonged skin exposure can cause dermatitis and slow-healing ulcers.

火災危険

Special Hazards of Combustion Products: Generates poisonous gases

农业用途

Oxalic acid, (COOH)2, also called ethanedioic acid, is a white, crystalline solid, slightly soluble in water. It is a naturally occurring highly oxidized organic compound with significant chelating activity. It is strongly acidic and poisonous, produced by many plants like sorrel (sourwood), the leaf blades of rhubarb, bark of eucalyptus and many plant roots. In plant cells and tissues, oxalic acid gets accumulated as either sodium, potassium or calcium oxalate, of which the latter occurs as crystals. In turn, salts of oxalic acids enter the bodies of animals and human beings, causing pathological disorders, depending upon the amount consumed. Many species of fungi like Aspergillus, Penicillium, Mucor, as well as some lichens and slime moulds produce calcium oxalate crystals. Upon the death of these microorganisms, plants and animals, the salts get released into the soil, causing some amount of toxicity. However, oxalate-degrading microbes, called Oxalobacter formigenes, decrease oxalate absorption in animals and humans.
Oxalic acid is the first of a series of dicarboxylic acids. It is used (a) as a bleaching agent for stains like rust or ink, (b) in textile and leather production, and (c) as monoglyceryl oxalate in the production of ally1 alcohol and formic acid.

安全性プロファイル

Poison by subcutaneous route. Moderately toxic by ingestion. A skin and severe eye irritant. Acute oxalic poisoning results from ingestion of a solution of the acid. There is marked corrosion of the mouth, esophagus, and stomach, with symptoms of vomiting, burning abdominal pain, collapse, and sometimes convulsions. Death may follow quickly. The systemic effects are attributed to the removal by the oxalic acid of the calcium in the blood. The renal tubules become obstructed by the insoluble calcium oxalate, and there is profound hdney dlsturbance. The chief effects of inhalation of the dusts or vapor are severe irritation of the eyes and upper respiratory tract, gastrointestinal disturbances, albuminuria, gradual loss of weight, increasing weakness and nervous system complaints, ulceration of the mucous membranes of the nose and throat, epistaxis, headache, irritation, and nervousness. Oxalic acid has a caustic action on the skin and may cause dermatitis; a case of early gangrene of the fingers resembling that caused by phenol has been described. More severe cases may show albuminuria, chronic cough, vomiting, pain in the back, and gradual emaciation and weakness. The skin lesions are characterized by crachng and fissuring of the skin and the development of slow-healing ulcers. The skin may be bluish in color, and the nails brittle and yellow. Violent reaction with furfuryl alcohol, Ag, NaClO3, NaOCl. When heated to decomposition it emits acrid smoke and irritating fumes. See also OXALATES

職業ばく露

Oxalic acid is used in textile finishing, paint stripping; metal and equipment cleaning; as an intermediate; as an analytic reagent and in the manufacture of dyes, inks, bleaches, and paint removers; varnishes, wood, and metal cleansers; dextrin, cream of tartar, celluloid, oxalates, tartaric acid, purified methyl alcohol, glycerol, and stable hydrogen cyanide. It is also used in the photographic, ceramic, metallurgic, rubber, leather, engraving, pharmaceutical, paper, and lithographic industries.

Source

Oxalic acid occurs naturally in many plants including buckwheat leaves (111,000 ppm), lambsquarter (140,000 to 300,000 ppm), black pepper (4,000 to 34,000 ppm), star fruit (50,000 to 95,800 ppm), purslane (1,679 to 16,790 ppm), nance bark (27,300 ppm), rhubarb 4,400 to 13,360 ppm), tea leaves (2,192 to 10,000 ppm), bitter lettuce (10,000 ppm), spinach (6,580 ppm), cacao (1,520 to 5,000 ppm), bananas (22 to 5,240 ppm), ginger (5,000 ppm in rhizome), cashews (3,184 ppm), almonds (4,073 ppm), taro roots (1,334 ppm), tamarind (1,960 ppm), garden sorrel (3,000 ppm), mustard green leaves (1,287 ppm), peppers (257 to 1,171 ppm), sweet potato roots (1,000 ppm), pumpkins, oats (400 ppm), tomatillo (109 to 536 ppm), various cabbage leaves (59 to 350 ppm), and horseradish (Duke, 1992).
Oxalic acid was identified as a constituent in a variety of composted organic wastes. Detectable concentrations were reported in all 21 composts extracted with water. Concentrations ranged from 0.60 mmol/kg in a straw + dairy cattle manure to 21.89 mmol/kg in straw + wood bark + dairy cattle manure. The overall average concentration was 9.67 mmol/kg (Baziramakenga and Simard, 1998).

環境運命予測

Biological. Heukelekian and Rand (1955) reported a 5-d BOD value of 0.12 g/g which is 66.7% of the ThOD value of 0.18 g/g.
Chemical/Physical. At temperatures greater than 189.5 °C, decomposes to carbon dioxide, carbon monoxide, formic acid, and water (Windholz et al., 1983). Ozonolysis of oxalic acid in distilled water at 25 °C under acidic conditions (pH 6.3) yielded carbon dioxide (Kuo et al., 1977). Absorbs moisture in air forming the dihydrate (Huntress and Mulliken, 1941).
Reacts with bases forming water soluble salts.

輸送方法

UN3261 Corrosive solid, acidic, organic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name Required.

不和合性

The aqueous solution is a medium-strong acid. 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 silver compounds; strong alkalis; chlorites. Contact with some silver compounds forms explosive materials.

廃棄物の処理

Pretreatment involves chemical reaction with limestone or calcium oxide forming calcium oxalate. This may then be incinerated utilizing particulate collection equipment to collect calcium oxide for recycling.

シュウ酸 上流と下流の製品情報

原材料

準備製品


シュウ酸 生産企業

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144-62-7(シュウ酸)キーワード:


  • 144-62-7
  • OXALATE ION CHROMATOGRAPHY STANDARD
  • PH STANDARD SOLUTION OXALATE BUFFER
  • BETZ 0295
  • ETHANEDIOIC ACID
  • DICARBOXYLIC ACID C2
  • DI-CARBOXYLIC ACID
  • Kleesαure
  • Kyselina stavelova
  • kyselinastavelova
  • NCI-C55209
  • Oxaalzuur
  • oxalic
  • Oxalsaeure
  • Oxalsαure
  • Oxiric acid
  • Oxalate Ion Chromatography Standard Solution Fluka
  • OXALIC ACID STANDARD SOLUTION, 0.05 M (0 .1 N)
  • 0,005 MOL OXALIC ACID FIXANAL
  • OXALIC ACID ANHYDROUS, EXTRA PURE
  • 0,05 MOL OXALIC ACID FIXANAL
  • OXALIC ACID STANDARD SOLUTION 0.05 MOL/L
  • OXALIC ACID SOLUTION 0,5 MOL/L, 1 N VOLU METRIC SOLUTION
  • Oxalic acid,99+%,anhydrous
  • Oxalic acidEthanedionic acid
  • Oxalate standard for IC,Oxalic acid standard solution
  • Oxalic acid, solution 0,05 mol/l (0,1 N)
  • Oxalic acid, solution 0,025 mol/l (0,05 N)
  • Oxalic acid, solution 0,005 mol/l (0,01 N)
  • Oxalic acid (Ethanedioic acid)
  • Oxalic acid, anhydrous, 98% 1KG
  • 1,2-ジヒドロキシ-1,2-エタンジオン
  • エタン二酸
  • シユウ酸
  • しゅう酸(無水)
  • 蓚酸
  • しゅう酸,無水
  • 0.0125MOL/Lしゅう酸溶液(N/40)
  • 0.05MOL/Lしゅう酸溶液(N/10)
  • 0.5MOL/Lしゅう酸溶液(1N)
  • 0.05MOL/L(N/10) しゅう酸溶液
  • シュウ酸 SOLUTION VOLUMETRIC,0.05 M (COOH)2 (0.1N)
  • シュウ酸 SOLUTION VOLUMETRIC,0.1 M (COOH)2 (0.2N)
  • シュウ酸 SOLUTION VOLUMETRIC,0.5 M (COOH)2 (1N)
  • シュウ酸濃縮溶液 FOR 1L STANDARD SOLUTION,0.005 M (COOH)2 (0.01N)
  • シュウ酸濃縮溶液 FOR 1L STANDARD SOLUTION,0.05 M (COOH)2 (0.1N)
  • 0.005MOL/L しゅう酸溶液(N/100)
  • 0.01MOL/L しゅう酸溶液(N/50)
  • 0.05MOL/L しゅう酸溶液(N/10)
  • 0.5MOL/L しゅう酸溶液(1N)
  • 1/80MOL/L しゅう酸溶液(N/40)
  • 0.0125MOL/L しゅう酸溶液 (N/40)
  • 0.05 MOL/Lしゅう酸溶液 (N/10)
  • しゅう酸濃縮溶液
  • しゅう酸 , 無水
  • 殺菌薬
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