CALCIUM ALUMINATE Property

Melting point:

1600°C

Density 

2.981

solubility 

reacts with H2O

form 

Powder

Specific Gravity

2.981

color 

White

Water Solubility 

Insoluble in water.

Sensitive 

Hygroscopic

Exposure limits

ACGIH: TWA 1 mg/m3

CAS DataBase Reference

12042-68-1(CAS DataBase Reference)

EPA Substance Registry System

Aluminum calcium oxide (Al2CaO4) (12042-68-1)

Safety

TSCA 

Yes

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H318Causes serious eye damage

H319Causes serious eye irritation

H332Harmful if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

CALCIUM ALUMINATE Chemical Properties,Usage,Production

Chemical Properties

white, monoclinic, tricl, or rhomb; -200 mesh 99% powder(s) [CER91] [CRC10]

Physical properties

Calcium aluminate is a white powder and exhibits a monoclinic crystalline form. Its density is 2.98 g/cc and its melting point is 1605 °C.

Uses

The major use found for CaAl2O4 has been as a hydrous cement. Alternative names are “aluminous cement”, “high-alumina cement” (HAC) and “Ciment fondu”. They are used in a number of small-scale, specialized applications.

Uses

Calcium aluminum oxide is used as a precursor in the production of naphtha steam reforming catalysts, refinery gas steam reforming catalysts, aluminum chlorohydrate, secondary hydrocarbon steam reforming catalysts. It is also used in the production of refractory and cements.

Preparation

Calcium aluminate can be formed by heating the oxides together at about 900–1250 °C:
CaO + Al2O3 + heat→CaAl2O4