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Home > Products >  Amorphous Calcium Aluminate

Amorphous Calcium Aluminate CAS NO.12042-68-1

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  • FOB Price: USD: 1.00-1.00 /Metric Ton Get Latest Price
  • Min.Order: 22 Metric Ton
  • Payment Terms: L/C,D/P,T/T
  • Available Specifications:

    Non crystallized (22-110)Metric Ton

  • Product Details


  • Calcium Aluminate
  • Non crystallized Calcium aluminate
  • amorphous C12A7

Quick Details

  • ProName: Amorphous Calcium Aluminate
  • CasNo: 12042-68-1
  • Molecular Formula: C12A7
  • Appearance: light gray-green powder
  • Application: cement accelerator
  • DeliveryTime: prompt shipment
  • PackAge: 1 or 1.1 MT big bag.
  • Port: Shanghai,Guangzhou
  • ProductionCapacity: 60000 Metric Ton/Year
  • Purity: 95%
  • Storage: RT.
  • Transportation: BY SEA
  • LimitNum: 22 Metric Ton
  • Grade: Industrial Grade
  • Cement Accelerator: Amorphous Calcium Aluminate


Chemical Name: Amorphous Calcium Aluminate

Synonyms: ACA, Non crystallized Calcium aluminate, amorphous C12A7,Concrete accelerator; Cement Accelerator Amorphous calcium aluminate 

CAS No.: 12042-68-1

Molecular Formula: C12A7


Amorphous calcium aluminate is the basic raw material of a new Accelerator, its principal constituent is the non-crystalline calcium aluminate. Appearance of light gray-green powder.


Properties of amorphous calcium higher reactivity than the crystalline product, used in conjunction with silicate cement, can achieve a higher degree of responsiveness and efficiency. Non-crystalline calcium aluminate reacts unexpectedly fast with plaster and water to produce ettringite; adds its appropriate to ordinary silicate cement, the initial setting in less than a minute to complete. Addition of ettringite structural stability, good strength. While ettringite volume expansion, formation of prestressed concrete and shrinkage resistance.



Physical and chemical indexes of non-crystalline calcium aluminate:


Chemical composition(%)







High-calcium products







High-alumina products







Non-crystallization rate

Over  95%

Surface area

4000-5500   g/cm3


Amorphous Cacium aluminate advantages:

※Accelerated and rapid harding

※Defending againt leakage

※High-strength and super high-early strength;

※ Low profile;

※Enhanced persistence,

※ Good adhesion


Non-crystalline calcium aluminate usages:

※Accelerated and rapid harding as cement accelerator,mainly in tunnels, underground engineering

※Defending againt leakage in nuclear power plant and other major projects


1 or 1.1 MT big bag.

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