The density is confirmed on the lot-specific certificate of analysis. The concentration can be determined by [density x 1000 x percentage conc. / mw]. For example, lot BCCH3478 has a purity of 44.8% and a density of 0.862. The concentration for this particular lot is 6.53 M. Please see the link below to review this certificate of analysis:
https://www.sigmaaldrich.com/certificates/Graphics/COfAInfo/fluka/pdf/PDF734034.pdf
92262
Trimetilamina solution
43.0-49.0% in H2O (T)
Sinónimos:
N,N,N-Trimethylamine, N,N-Dimethylmethanamine, TMA solution
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About This Item
Fórmula lineal:
(CH3)3N
Número de CAS:
Peso molecular:
59.11
Beilstein/REAXYS Number:
956566
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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form
liquid
Quality Level
concentration
43.0-49.0% in H2O (T)
density
0.83-0.88 g/mL at 20 °C
functional group
amine
SMILES string
CN(C)C
InChI
1S/C3H9N/c1-4(2)3/h1-3H3
InChI key
GETQZCLCWQTVFV-UHFFFAOYSA-N
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 1 - Skin Corr. 1 - STOT SE 3
target_organs
Respiratory system
Storage Class
3 - Flammable liquids
wgk_germany
WGK 1
flash_point_f
19.4 °F - closed cup
flash_point_c
-7 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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I bought this solution without knowing that the concentration of TMA was not specifically defined. I measured the mass of 1mL of the solution to be 0.61g when the densitry range was given as 0.83-0.88 g/mL. How should I confirm the concentration of TMA?
1 answer-
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