Volumetric Properties in the NaAsO₂ + H₂O System at Temperature from 283.15 to 363.15 K and Atmospheric Pressure

Table 1

Source and purity of the chemical used in this work.

Reagents	CAS reg. no	Initial mass fraction purity	Purification method	Final mass fraction purity	Analysis method
NaAsO2^a	7784-46-5	0.99	Recrystallization	0.995	ICP-MS for AsO2^−b

^aXiya Reagent Co., Ltd. ^bStandard uncertainty u is u(m) = 0.0063 in mass fraction.