Anhydrous sodium chlorite

Abstract

NaC1Oz, I2/a, monoclinic, a = 6.456 (2), b = 6.442 (2), c=6.813 (2)A, fl=120.6 (1) °, Z=4, D,= 2.468 gcm -3. The CI-O bond length is 1"564 (3) A and the OCIO bond angle is 108.6 (1) °, which are values close to those found in NaCIOz.3HzO. The CIO~ groups are oriented with antiparallel dipole moments along b and the O atoms form a sixfold coordination unit about the Na + ions in the form of a distorted triangular prism.Abstract. The space group is P] and not P 1 ; the asymmetric unit is [CsHsN4S.CuCI2.H20]. The structure has now been refined in P] to R =0-046 for 1584 observed data and yields satisfactory bond lengths and angles.

Lanthanum(III) chlorite trihydrate, La(ClO2)3.3H2O: a redetermination

“…The O-CI-O angle is wider than in the previous determination: 114.0 (7) ° [against 110 (3)°]. Compare the other O-C1--O values in the literature: l l0.5 ° in NH4C10 2 (Gillespie, Sparks & Trueblood, 1959); Ill (3) ° in AgC102 (Cooper & Marsh, 1961); 108.2 (1) ° in NaCIO2.3H20 (Tarimci, Schempp & Chang, 1975;Tazzoli, Riganti, Giuseppetti & Coda, 1975); 108.6 (1) ° in NaCIO 2 (Tarimci, Rosenstein & Schempp, 1976); 111.4 (1) ° in Zn(CIO2)2.2H20 (Pakkanen & Pakkanen, 1979…”

Generation of Gaseous ClO2 from Thin Films of Solid NaClO2 by Sequential Exposure to Ultraviolet Light and Moisture

“…We determined the initial moisture content of NaClO 2 samples (80 wt % pure NaClO 2 ; prior to exposure to flowing N 2 gas) using Karl Fischer titration and TGA to be 0.13 ± 0.01 and 0.16 ± 0.01%, respectively (see Figure S2 for the TGA profile). NaClO 2 can exist in an anhydrous and a hydrated form (NaClO 2 ·3H 2 O), the latter of which dehydrates at 37.4 °C (the expected weight percent of water in NaClO 2 ·3H 2 O is 37%). , Our measurements of water content indicate that the NaClO 2 samples used in this study are in the anhydrous state. In addition, the TGA profile indicates that desorption of water from our NaClO 2 samples occurs at two distinct desorption temperatures (one peak around 80 °C and one around 120 °C; Figure S2).…”

X-ray absorption studies of chlorine valence and local environments in borosilicate waste glasses

“…NaClO 3 has ClO 3 pyramids [7], where Cl is at the apex of each pyramid with 1.46 Å ClAO distances. Chlorine in NaClO 2 is part of a bent OAClAO molecular configuration, where ClAO distances are 1.56 Å [8]. Halite and sylvite standards have Cl surrounded by six alkali cations, where ClANa is 2.82 Å and ClAK is 3.14 Å [9], respectively.…”