33214
乙酸酐
ACS reagent grade, ≥99% (GC), puriss. p.a., reag. ISO, reag. Ph. Eur.
别名:
Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
选择规格
关于此项目
产品名称
乙酸酐, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99% (GC)
Quality Segment
agency
USP/NF, reag. ISO, reag. Ph. Eur.
vapor density
3.5 (vs air)
vapor pressure
10 mmHg ( 36 °C), 4 mmHg ( 20 °C)
grade
ACS reagent, puriss. p.a.
assay
≥99% (GC)
autoignition temp.
629 °F
expl. lim.
10.3 %
impurities
≤0.003% non-volatile matter, ≤0.01% KMnO4 red. matter (as O)
refractive index
n20/D 1.390 (lit.)
bp
138-140 °C (lit.)
mp
−73 °C (lit.)
density
1.08 g/mL (lit.)
anion traces
chloride (Cl-): ≤2 mg/kg, phosphate (PO43-): ≤10 mg/kg, sulfate (SO42-): ≤5 mg/kg
cation traces
Al: ≤0.5 mg/kg, B: ≤0.02 mg/kg, Ba: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.05 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.1 mg/kg, Sn: ≤0.1 mg/kg, Zn: ≤0.2 mg/kg
suitability
passes test for reaction against H2SO4
SMILES string
CC(=O)OC(C)=O
InChI
1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
InChI key
WFDIJRYMOXRFFG-UHFFFAOYSA-N
General description
Application
- Modification of Quinoa Starches: Acetic anhydride is used to modify the structure of starch molecules, discussing its implications on improving bread quality and food processing (Wang et al., 2024).
Other Notes
The article number 33214-4X2.5L-M will be discontinued. Please order the single bottle 33214-2.5L-M which is physically identical with the same exact specifications.
The article number 33214-6X1L will be discontinued. Please order the single bottle 33214-1L which is physically identical with the same exact specifications.
The article number 33214-6X1L-M will be discontinued. Please order the single bottle 33214-1L-M which is physically identical with the same exact specifications.
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
存储类别
3 - Flammable liquids
flash_point_f
120.2 °F - closed cup
flash_point_c
49 °C - closed cup