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2. Sodium nitrate - Wikipedia

   en.wikipedia.org/wiki/Sodium_nitrate

   Sodium nitrate has also been investigated as a phase-change material for thermal energy recovery, owing to its relatively high melting enthalpy of 178 J/g. [14] [15] Examples of the applications of sodium nitrate used for thermal energy storage include solar thermal power technologies and direct steam generating parabolic troughs. [14]

3. Nanoconcrete - Wikipedia

   en.wikipedia.org/wiki/Nanoconcrete

   Decorative plate made of Nano concrete with High-Energy Mixing (HEM) Two-layered pavers, pigmented top layer made of HEM nanoconcrete Nanoconcrete (also spelled nano concrete or nano-concrete) is a form of concrete that contains Portland cement particles that are no greater than 100 μm [1] and particles of silica no greater than 500 μm, which fill voids that would otherwise occur in normal ...

4. Sodium nitrite - Wikipedia

   en.wikipedia.org/wiki/Sodium_nitrite

   One method uses molten sodium nitrate as the salt, and lead which is oxidized, while a more modern method uses scrap iron filings to reduce the nitrate. [4] [84] NaNO 3 + Pb → NaNO 2 + PbO. A more commonly used method involves the general reaction of nitrogen oxides in alkaline aqueous solution, with the addition of a catalyst. The exact ...

5. Ceramic nanoparticle - Wikipedia

   en.wikipedia.org/wiki/Ceramic_nanoparticle

   Medical technology used Ceramic nanoparticle for bone repair. It has been suggested for areas including energy supply and storage, communication, transportation systems, construction and medical technology. Their electrical properties may allow energy to be transferred efficiencies approaching 100%.

6. Alkali metal nitrate - Wikipedia

   en.wikipedia.org/wiki/Alkali_Metal_Nitrate

   The nitrate ion. Alkali metal nitrates are chemical compounds consisting of an alkali metal (lithium, sodium, potassium, rubidium and caesium) and the nitrate ion. Only two are of major commercial value, the sodium and potassium salts. [1] They are white, water-soluble salts with melting points ranging from 255 °C (LiNO 3) to 414 °C (CsNO

7. Concrete sealer - Wikipedia

   en.wikipedia.org/wiki/Concrete_sealer

   Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.