According to the product manager, amines (NH3, NH2R) have the ability to solvate free electrons, resulting in an ink-like blue color. However, this typically occurs only in the presence of metals such as Li, K, Na, which provide the free electron. In the case of chemical synthesis applications, the color is not a significant concern as it does not affect the performance of such applications in general. Additionally, the majority of products are prone to color changes due to the very small traces of impurities present (ppm to ppb) or those that might form due to the reaction with oxygen/moisture over time.
724033
Ethylamine
99.0%
Synonym(s):
Aminoethane, Monoethylamine
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100 G
$419.00
About This Item
Linear Formula:
C2H5NH2
CAS Number:
Molecular Weight:
45.08
Beilstein:
505933
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
vapor density
1.56 (15 °C, vs air)
Quality Level
vapor pressure
874 mmHg ( 20 °C)
Assay
99.0%
form
gas
autoignition temp.
721 °F
expl. lim.
14 %
3.5-14 %
bp
16.6 °C (lit.)
mp
-81 °C (lit.)
density
0.680 g/mL at 20 °C (lit.)
0.689 g/mL at 25 °C (lit.)
functional group
amine
SMILES string
CCN
InChI
1S/C2H7N/c1-2-3/h2-3H2,1H3
InChI key
QUSNBJAOOMFDIB-UHFFFAOYSA-N
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Packaging
Supplied in a Sure/Pac™ cylinder and has a 316 stainless steel needle valve with a male 1/4" NPTF outlet thread installed . Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.
Compatible with the following:
Compatible with the following:
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
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Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Gas 1 - Press. Gas Liquefied gas - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
2A - Gases
WGK
WGK 1
Flash Point(F)
-34.6 °F - closed cup
Flash Point(C)
-37 °C - closed cup
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What causes ethylamine to come out of its cylinder as a clear liquid, but then immediately turn dark blue in a receiving beaker?
1 answer-
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