COBALT BLUE

PRODUCT IDENTIFICATION

 
CAS NO. 1345-16-0; 68186-86-7

 
EINECS NO. 310-193-6
FORMULA

CoO·Al2O3
MOL WT.  

H.S. CODE

  

TOXICITY

  
SYNONYMS C.I. Pigment blue 28; C.I. 77346; Cobalt aluminate spinel;
Cobalt aluminate blue spinel; Cobalt(II) oxide-aluminum oxide
SMILES  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE blue powder

MELTING POINT

  
BOILING POINT  
SPECIFIC GRAVITY  

SOLUBILITY IN WATER

 slightly
pH  
VAPOR DENSITY  

AUTOIGNITION

 

REFRACTIVE INDEX

  
NFPA RATINGS Health: 2; Flammability: 1; Reactivity: 0
FLASH POINT

 
STABILITY Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS

Cobalt blue is a green-blue inorganic pigment consisting of alumina and cobalt oxide. Chemically it is a cobalt(II) oxide-aluminium oxide It is also known as cobalt ultramarine and king's blue. It is the reaction product of calcination at high tmeperature. Cobalt (II) oxide and aluminum oxide are homogeneously and ionically interdiffused with trace amount of modifiers (MgO, ZnO, Li2O, or TiO2) to form a crystalline matrix of spinel. Cobalt blue pigment products are acid/alkalai resistant and are extremely heat stable. They have excellent weatherability and lightfastness. Cobalt oxide is a pigment used in ceramics and glass. Artists use cobalt blue for the high quality blue. Cobalt blue is used as a colorant and optical whitening agent for plastics, rubber, inks, paints, cosmetics, detergents, cement, textile and paper.

Members of pigment blue

Pigment

C.I.No.

CAS RN
Cascade blue Pigment Blue 1 1325-87-7
Cascade blue phosphomolybdate Pigment Blue 1, phosphomolybdate 68083-42-1
  Pigment Blue 1, Silicomolybdate 68413-81-0
  Pigment Blue 1, tungstophosphate 68647-33-6
  Pigment Blue 9 1325-74-2
  Pigment Blue 9, tannate 68477-20-3
C.I. 44040:2 Pigment Blue 10 1325-93-5
  Pigment Blue 14 1325-88-8
Copper phthalocyanine Pigment Blue 15 147-14-8
Copper monochlorophthalocyanine Pigment Blue 15:1 12239-87-1
Phthalocyanine Pigment Blue 16 574-93-6

 

 Pigment Blue 17  71799-4-7
  Pigment Blue 19 58569-23-6
Alizanthrene Blue Pigment Blue 22 1324-27-2
Dianisidine blue Pigment Blue 26 5437-88-7
Ammonium Prussian blue Pigment Blue 27 12240-15-2
Cobalt blue Pigment Blue 28 1345-16-0
Lazurite Pigment Blue 29 1302-83-6
Ultramarine Pigment Blue 29 57455-37-5
Cosmetic ultramarine blue Pigment Blue 29 12769-96-9
  Pigment Blue 3 1325-79-7
Cupric sulfide Pigment Blue 34 1317-40-4
Cobalt tin oxide Pigment Blue 35 1345-19-3
Aluminum chromium cobalt oxide Pigment Blue 36 68187-11-1
Indanthrene Blue Pigment Blue 60 81-77-6
Reflex Blue R Pigment Blue 61 1324-76-1
Indigo carmine-aluminum lake Pigment Blue 63 16521-38-3
3,3'-Dichloroindanthrene Pigment Blue 64 130-20-1
Violanthrone Pigment Blue 65 116-71-2
Indigo Pigment Blue 66 482-89-3
Zirconium vanadium blue zircon Pigment Blue 71 68186-95-8
Cobalt zinc aluminate blue spinel Pigment Blue 72 68186-87-8
Cobalt silicate blue olivine Pigment Blue 73 68187-40-6
Cobalt Zinc Silicate Blue Phenacite Pigment Blue 74 68412-74-8
SALES SPECIFICATION

APPEARANCE

  

CONTENT

 
TRANSPORTATION
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OTHER INFORMATION