Oxalic Acid Dihydrate 草酸二水合物
CAS 6153-56-6 MFCD00149102
化学结构图
SMILES: O.O.O=C(O)C(=O)O
化学属性
| Mol. Formula | C2H2O4·2H2O |
|---|---|
| Mol. Weight | 126 |
| Melting Point | 98-102 |
| Density | 1.65 |
| TSCA | Yes |
| Solubility | Very soluble in water. Moderately soluble in ethanol. Sparingly soluble in ether |
| Vapor Density | 4.4 (vs air) |
| Vapor Pressure | <;0.01 mmHg ( 20 °C) |
| Refractive index | 1.45560 |
| Boiling Point | 86.9°C |
| Flash Point | 157°C |
| Appearance | 本品为无色透明单斜晶系结晶。通常以二水物存在。熔点101～102 ℃。相对密度（19 ℃）1.65。折射率1.440。可溶于水，稍溶于乙醚和乙醇。157 ℃升华。二水物易风化失水而成无水草酸。无水物熔点189.5 ℃（分解）。 |
别名和识别编码
| Chemical Name | Oxalic Acid Dihydrate |
|---|---|
| Synonym | (COOH)2 · 2H2O ETHANEDIOIC ACID DIHYDRATE ETHANEDIONIC ACID DIHYDRATE Ethandionic acid, dihydrate Ethanedionic acid OXALIC ACID OXALIC ACID 2H2O OXALIC ACID DIHYDRATE OXALIC ACID DIHYDRATE ACS REAGENT OXALIC ACID DIHYDRATE, 99%, A.C.S. REAGE NT OXALIC ACID DIHYDRATE, REAGENTPLUS TM, 99% OXALIC ACID-2-HYDRATE R. G., REAG. ACS, REAG. ISO, REAG. PH. EUR. Oxalic acid di hydrate Oxalic acid dihydrate Oxalsäure Dihydrat Oxalsäure-2-hydrat a-Oxalic acid dihydrate α-Oxalic acid dihydrate 乙二酸 乙二酸(二水合) 乙二酸,蓚酸 二水合乙二酸 二水合草酸 |
| CAS Number | 6153-56-6 |
| PubChem Substance ID | 24854873 |
| EC Number | 205-634-3 |
| Beilstein Registry Number | 3679436 |
| MDL Number | MFCD00149102 |
| Merck Number | 14,6911 |
| Chemical Name Translation | 草酸二水合物 |
| LabNetwork Molecule ID | LN00195047 |
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分类
- {SNA} Acids, Alternative Energy, Electronic Chemicals, Materials Science, Materials for Hydrogen Storage, Metal Organic Frameworks (MOFs), Micro & Nanoelectronics, Micro/NanoElectronics, New Products for Materials Research and Engineering, Organic Linker Molecules, Physisorption
- Analytical Reagents, An
产品应用
- A diprotic reducing agent used as a buffer.
相关文献及参考
- Merck: 14,6911 Beilstein: 2,IV,1819
- Short: II/27B
- Merck: 14,6911
- Short: II/27C
安全信息
GHS Symbol
WGK Germany1
Hazard Codes
8
Xn
Xn,C
Hazard statements
- H302+H312
- H318 Causes serious eye damage 严重伤害眼睛
- H302 Harmful if swallowed 吞食有害
- H312 Harmful in contact with skin 皮肤接触有害
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
- P305+P351+P338
Signal word
Danger
Warning
RTECSRO2450000
Safety Statements
- S24/25 Avoid contact with skin and eyes 避免皮肤和眼睛接触；
UN Number
1759
2923
Risk Statements
- R21/22 Harmful in contact with skin and if swallowed 皮肤接触和不慎吞咽有害
- R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
Packing GroupII
Storage condition
Store at RT.
密封保存
Hazard Class8
其他信息
- 下游产品:草酸 --> 四甲基乙二胺 --> 氧化二乙酰丙酮合钒
- MSDS 信息:Ethanedionic acid(6153-56-6).msds
- 草酸价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 53101160 草酸;乙二酸; 酸 500ml 80元 2011/08/23 10014818 草酸;乙二酸; 酸 500g 13.8元 2011/08/23 100148193 草酸;乙二酸; 酸 25kg/袋 514元
- 升华点:157 °C
- 海关编码:29171100
- 在温热、干燥空气中风化，可溶于水及乙醇。无气味。150-160℃升华。在高热干燥空气中能风化。1g溶于7ml水、2ml沸水、2.5ml乙醇、1.8ml沸乙醇、100ml乙醚、5.5ml甘油，不溶于苯、氯仿和石油醚。0.1mol/L溶液的pH值为1.3。低毒，半数致死量（兔，经皮）2000mg/kg。
- Oxalic acid dihydrate is a reducing agent. Oxalic acid, also known as Ethanedioic acid is a diprotic acid, which means it can give away 2 protons (hydrogen ions) to a base. Oxalic acid dihydrate has been evaluated as a treatment for reducing populations of naturally occurring microorganisms. Used as a buffer in chromatographic separation, dechelation and deproteinization in tandem with acetonitrile and/or other solvents.
- Alfa Aesar:草酸二水合物,ACS,99.5-102.5% Oxalic acid dihydrate, ACS, 99.5-102.5%(6153-56-6)
- 蒸气压:<;0.01 mm Hg ( 20 °C)
- MOL 文件:6153-56-6.mol
- Acros Organics:二水合草酸 Oxalic acid dihydrate, extra pure, 99+%(6153-56-6)
- 方法一:乙二醇氧化法 将乙二醇加入反应釜中，在130 ℃下通空气氧化。经后处理得产品。或将乙二醇和水加入反应釜中，加热至80～85 ℃，在激烈搅拌下加入98%的硝酸，反应4 h后冷却到25 ℃过滤，结晶得产品。 丙烯氧化法 将60%～70%的硝酸加入反应釜中，于10～40 ℃通入珍烯，（二者配料比1︰0.1）搅拌溶解后升温至50～65 ℃，排出氧化氮。冷却至20 ℃结晶过滤，干燥得产品。
- 用途一:在酸性镀锡中作络合剂，它与四氯化锡组成络合盐溶解在镀锡溶液中。一般加入量为24～25 g/L。还可用于铜件抛光。铝的草酸阳极氧化和硬质阳极氧化溶液中，以及硫酸盐镀铁和刷镀络等电镀液中。
- Sigma Aldrich:6153-56-6(sigmaaldrich)
- 蒸气密度:4.4 (vs air)
- 上游原料:乙二醇 --> 一氧化氮
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