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
产品名称
草酸 二水合物, ACS reagent, ≥99%
InChI key
GEVPUGOOGXGPIO-UHFFFAOYSA-N
InChI
1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
SMILES string
[H]O[H].[H]O[H].OC(=O)C(O)=O
grade
ACS reagent
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%
Quality Level
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
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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。
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)。
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
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