Kaolinite CAS 1318-74-7

Introduction：Basic information about Kaolinite CAS 1318-74-7, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Kaolinite Basic information

• Product Name: Kaolinite
• Synonyms: Dialuminum disilicon pentaoxide tetrahydroxide;KAOLINITE, NATURAL;AluminiumsilicateQP;Kaolinite (Al2(OH)4(Si2O5));C. I. Pigment White 19 (77004);Colloidal Kaolin - USP BC 2747;KAOLINITE
• CAS: 1318-74-7
• MF: Al2H4O9Si2
• MW: 258.160436
• EINECS: 215-286-4
• Mol File: 1318-74-7.mol

Kaolinite Chemical Properties

• Melting point: 560-600 °C (decomp)
• density: 2.596 g/cm3
• form: powder
• InChI: 1S/2Al.O2Si.3O/c;;1-3-2;;;
• InChIKey: HNPSIPDUKPIQMN-UHFFFAOYSA-N
• SMILES: O=[Si]=O.O=[Al]O[Al]=O
• EPA Substance Registry System: Kaolinite (Al2(OH)4(Si2O5)) (1318-74-7)

Safety Information

• WGK Germany: 3
• TSCA: TSCA listed
• Storage Class: 11 - Combustible Solids

Kaolinite Usage And Synthesis

Chemical Properties

Off-white powder with a soft, white texture. Density 2.54-2.60 mg/cm??. Melting point approximately 1785°C. Excellent light resistance and very stable to dilute acids and alkalis.

Physical properties

Habit: platy, massive.
Color: white, brownish white, grayish white, yellowish white,or grayish green.
Diaphaneity: transparent to translucent.
Luster: earthy (i.e., dull).
Streak: white.
Cleavage: (001) perfect.
Fracture: flexible.

Uses

Kaolinite can be used:

• In the preparation of of polysialate polymers.
• To prepare mullite composites by sintering kaolinite and alumina.
• To synthesize microporous materials such as zeolite Linde Type A (LTA) and kaoline based silicoaluminophosphate (SAPO) molecular sieves.
• In the synthesis of terbium pyridine-picolinate grafted kaoline, as a luminescent hybrid material.
• As a filler and a coating pigment in the paper industry.

Kaolinite Preparation Products And Raw materials

• Raw materials: granite