| Identification | More | [Name]
Pigment Yellow 42 | [CAS]
51274-00-1 | [Synonyms]
ALPHA-IRON(III) OXIDE
BROWN IRON OXIDE
BURNT UMBER
c.i. 77491
COPPERAS RED IRON OXIDES
Diiron Trioxide
E 172
EISENOXID ROT
FERRIC OXIDE
FERRIC OXIDE, BROWN
FERRIC OXIDE, RED
FERRISPEC(R) PL RED IRON OXIDE
FERRISPEC(TM) GC
HAEMATITE
HEMATITE
IRON(+3)OXIDE
IRON(III) OXIDE
IRON (III) OXIDE, ALPHA
IRON (III) OXIDE, GAMMA
IRON(III) OXIDE RED | [EINECS(EC#)]
215-168-2 | [Molecular Formula]
Fe2O3 | [MDL Number]
MFCD00011008 | [Molecular Weight]
159.69 | [MOL File]
51274-00-1.mol |
| Hazard Information | Back Directory | [Chemical Properties]
yellow powder(s) [STR93] | [Uses]
Antihyperparathyriod | [Flammability and Explosibility]
Nonflammable | [Properties and Applications]
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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DARK YELLOW POWDER
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CONTENT OF
Fe
2
O
3
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86% min
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pH VALUE
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3-7
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SHADE
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CLOSE TO STANDARD
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OIL ABSORPTION
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25-35%
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RESIDUE ON 320 MESH
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0.3% max
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WATER SOLUBLE
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0.3% max
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VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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98-102 %
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| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
-
| [RTECS ]
NO7400000
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| Questions And Answer | Back Directory | [Description]
Pigment yellow 42, also known as Yellow Iron oxide is a yellow powder in the form of an alkaline oxide with comparatively stable chemical properties. It is is insoluble in water and alcohol, slightly soluble in acids but completely dissolves in concentrated hydrochloric acid. When heated to 80℃, it loses water and converts to red ferric oxide. It is used in coating, printing ink and paint, and also as a coloring agent for building material, rubber and paper-making. It is widely used due to its bright and pure colour, good weather proofing and high opacity. It is manufactured by the precipitation of ferric oxide hydroxide followed by purification through washing, drying and milling.
| [References]
1.https://mistralhowto.wordpress.com/2012/03/12/what-is-pigment-yellow-42-and-what-is-it-used-for/
2.https://hazmap.nlm.nih.gov/category-details?id=20391&table=copytblagents
3.http://carriagehousepaper.com/pigment-yellow-42-iron-oxide-ochre-568
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