247537
草酸 二水合物
ACS reagent grade, ≥99%, 99.5-102.5% (ACS specification), solid
别名:
乙二酸
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关于此项目
线性分子式:
HO2CCO2H · 2H2O
化学文摘社编号:
分子量:
126.07
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39021701
UNSPSC Code:
12352100
EC Number:
205-634-3
MDL number:
Beilstein/REAXYS Number:
3679436
Assay:
≥99%, 99.5-102.5% (ACS specification)
Form:
solid
Grade:
ACS reagent
产品名称
草酸 二水合物, ACS reagent, ≥99%
grade
ACS reagent
Quality Level
vapor density
4.4 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
assay
≥99%, 99.5-102.5% (ACS specification)
form
solid
impurities
H2SO4, passes test (darkened), ≤0.001% N compounds, ≤0.005% insolubles
ign. residue
≤0.01%
pH
1.5 (10 g/L)
mp
104-106 °C (lit.)
solubility
water: 100 g/L at 25 °C
anion traces
chloride (Cl-): ≤0.002%, sulfate (SO42-): ≤0.005%
cation traces
Ca: ≤0.001%, Fe: ≤2 ppm, heavy metals: ≤5 ppm (by ICP-OES)
functional group
carboxylic acid
SMILES string
[H]O[H].[H]O[H].OC(=O)C(O)=O
InChI
1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
InChI key
GEVPUGOOGXGPIO-UHFFFAOYSA-N
General description
由于草酸二水合物与其他水合物相比具有较高的熔合热和储能密度/价格比，其在热能储存(TES)技术的应用中是一种很有前途的相变材料(PCM)。
Application
草酸二水合物可用于：
- 作为通过亚胺二醛反应制备四氢喹啉衍生物的催化剂。
- 作为多组分反应制备高官能化哌替啶的均相催化剂。
- 作为通过氧化作用从相应的吡咯和双吡咯中生成三唑烷二酮的一种氧化剂。
- 与亚硝酸钠反应将硫醇转化为亚硝基硫醇。
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
存储类别
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Gloves
Effects of sodium chloride on the thermal behavior of oxalic acid dihydrate for thermal energy storage
Han L, et al
Applied Energy, 185, 762-767 (2017)
An Efficient Method for Production and Storage of Unstable S-Nitrosothiols Under Mild and Heterogeneous Condition with Sodium Nitrite and Oxalic Acid Dihydrate.
Zolfigol MA, et al.
Synthetic Communications, 29(13), 2277-2280 (1999)
One-pot five-component synthesis of highly functionalized piperidines using oxalic acid dihydrate as a homogenous catalyst.
Sajadikhah SS, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 23(5), 569-572 (2012)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 247537-100G | 04061825900803 |
| 247537-2.5KG | 04061825900810 |
| 247537-500G | 04061838634955 |