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80166-33-2

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80166-33-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80166-33-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,1,6 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80166-33:
(7*8)+(6*0)+(5*1)+(4*6)+(3*6)+(2*3)+(1*3)=112
112 % 10 = 2
So 80166-33-2 is a valid CAS Registry Number.

80166-33-2Upstream product

80166-33-2Downstream Products

80166-33-2Relevant articles and documents

Rapid Analysis of Tetrakis(dialkylamino)phosphonium Stability in Alkaline Media

Womble, C. Tyler,Kang, Jamie,Hugar, Kristina M.,Coates, Geoffrey W.,Bernhard, Stefan,Noonan, Kevin J. T.

, p. 4038 - 4046 (2017/10/30)

Hydroxide-stable organic cations are crucial components for ion-transport processes in electrochemical energy systems, and the tetrakis(dialkylamino)phosphonium cation is a promising candidate for this application. These phosphoniums are known to be highly resistant to alkaline media; however, very few investigations have systematically evaluated how these cations decompose in the presence of hydroxide or alkoxide anions. The excellent stability of several tetraaminophosphoniums in 2 M KOH/CH3OH at 80 °C led us to design experiments for the rapid assessment of phosphonium degradation in homogeneous solution and under phase-transfer conditions. The analysis illustrated how substituents around the cation core affect both degradation pathways and rates. β-H elimination and direct attack at the phosphorus atom are the most common degradation pathways observed in an alcoholic solvent, while α-H abstraction and direct attack are observed under phase-transfer conditions (PhCl and 50 wt % NaOH/H2O). The collected data provided a relative stability comparison for this family of cations to enable future design improvements and illustrated the utility of using multiple tests for degradation studies.

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