Dicalcium silicate → Calcium hydroxide​, monohydrate

HRID 1838772Notes

Reaction equation

HRID 1838772 reaction equation
[Si:1]([O-:5])([O-:4])([O-:3])[O-:2].[Ca+2:6].[Ca+2].[OH-:8].[Ca+2].[OH-]>>[OH2:2].[Si:1]([O-:5])([O-:4])([O-:3])[O-:2].[Ca+2:6].[Ca+2:6].[OH2:8].[OH-:2].[Ca+2:6].[OH-:2]

Participants

4

Reactant 2

HCID 14941Dicalcium silicateHCID 6093208Calcium Hydroxide

Product 2

HCID 5289063Calcium hydroxide​, monohydrateHCID 44154858HCID 44154858, compound

Procedure

Calcium silicate in cement and the calcium hydroxide source material added cause, by hydration, calcium silicate hydrate and calcium hydroxide crystals, respectively, to precipitate out. By carrying out a grinding operation on that occasion simultaneously with the hydration reaction, the crystal growth of hydration reaction products is suppressed by the impact and friction between grinding media (milling balls etc.) and the materials to be ground (hydration reaction products) and, as a result, very fine calcium silicate hydrate particles and calcium hydroxide hydrate particles are formed.

Workup

  1. customby hydration, calcium silicate hydrate and calcium hydroxide crystals, respectively, to precipitate out
  2. customsimultaneously with the hydration reaction
  3. customthe crystal growth of hydration reaction products
  4. custombetween grinding media (milling balls etc.)
  5. customground (hydration reaction products)

Sources & evidence

ORD record
ord-a3bded2654864594b7d5b39ef4c2a00c
Source dataset
uspto-grants-2004_01
Patent number
US06676911B1

Reaction notes

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