in an experiment one need to freeze a sample solution to form transparent glass at -265C which cryogenic agent one needs for freezing of the sample
Answers
Ice is water frozen into a solid state.[3][4] Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color.
Physical properties
Density (ρ)
0.9167[1]–0.9168[2] g/cm3
Refractive index (n)
1.309
Mechanical properties
Young's modulus (E)
3400 to 37,500 kg-force/cm3[2]
Tensile strength (σt)
5 to 18 kg-force/cm2[2]
Compressive strength (σc)
24 to 60 kg-force/cm2[2]
Poisson's ratio (ν)
0.36±0.13[2]
Thermal properties
Thermal conductivity (k)
0.0053(1 + 0.105 θ) cal/(cm s K), θ = temperature in °C[2]
Linear thermal expansion coefficient (α)
5.5×10−5[2]
Specific heat capacity (c)
0.5057 − 0.001863 θ cal/(g K), θ = absolute value of temperature in °C[2]
Electrical properties
Dielectric constant (εr)
~3.15