bɪkˈʌz ʌv ɪts hˈaɪ ˈɑːksɪdʒən:mˈæs ænd ˈɑːksɪdʒən:vˈɑːljuːm ɹˈeɪʃɪˌoʊz, ðə sˈɑːlɪd hˈæzbiːn jˈuːzd tə ɹᵻmˈuːv sˌiːˈoʊ tˈuː fɹʌmðɪ ˈætməsfˌɪɹ ɪn spˈeɪskɹæft.
Because of its high oxygen:mass and oxygen:volume ratios, the solid has been used to remove CO2 from the atmosphere in spacecraft.