Limits on the contribution of early endogenous radiolysis to oxidation in carbonaceous chondrites’ parent bodies

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Volume 653 (September 2021)

A&A, 653 (2021) A59

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Table A.1

Composition of cometary ices used as reference in the pH calculation of Sect. 4.2, based on Rubin et al. (2019).

Species	Moles	Molality
H₂O	100	55.56
CO₂	4.7	2.61
HCOOH	0.013	0.0072
CH₃COOH	0.0034	0.0019
NH₃	0.67	0.3722
HCN	0.14	0.0778
HNCO^(*)	0.027	0.015
H₂S	1.1	0.6111
OCS^(*)	0.041	0.0228
SO₂	0.127	0.0706
CS₂^(*)	0.0057	0.0032
H₂CS^(*)	0.0027	0.0015
CH₃SH^(*)	0.038	0.0211
HF	0.011	0.0061
HCl	0.014	0.0078

Notes. Species flagged with an asterisk ^(*) are absent from the thermodynamic database (thermo.com.V8.R6+), and are therefore not included in the calculations.

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