51274-00-1

Basic information

• Product Name: Pigment Yellow 42
• Synonyms: C.I.Pigmentyellow42;Transparentironoxideyellow;RAW UMBER;ROUGE;SIENNA BURNT;SIENNA;NR RED IRON OXIDE;YELLOW FERRIC OXIDE
• CAS NO: 51274-00-1
• Molecular Formula: Fe2O3
• Molecular Weight: 159.69
• EINECS: 215-168-2
• Product Categories: INORGANIC & ORGANIC CHEMICALS;UVCBs-inorganic;metal oxide;dyestuff
• Mol File: 51274-00-1.mol
• Article Data: 0

Chemical Properties

• Melting Point: 1538 °C
• Flash Point: >230 °F
• Appearance: yellow/Powder
• Density: 5.24
• Storage Temp.: Room Temperature
• Water Solubility: 1.65μg/L
• CAS DataBase Reference: Pigment Yellow 42(CAS DataBase Reference)
• NIST Chemistry Reference: Pigment Yellow 42(51274-00-1)
• EPA Substance Registry System: Pigment Yellow 42(51274-00-1)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26
• RTECS: NO7400000
• Hazardous Substances Data: 51274-00-1(Hazardous Substances Data)

Usage

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

Uses

Pigment Yellow 42 (Technical Grade) is used in the topical solar composition protecting skin exposed to irradiation of high energy visible light.

Flammability and Explosibility

Nonflammable

Properties and Applications

TEST ITEMS SPECIFICATION APPEARANCE DARK YELLOW POWDER CONTENT OF Fe 2 O 3 86% min pH VALUE 3-7 SHADE CLOSE TO STANDARD OIL ABSORPTION 25-35% RESIDUE ON 320 MESH 0.3% max WATER SOLUBLE 0.3% max VOLATITE 105 °C 1.0% max TINTING STRENGTH 98-102 %

TEST ITEMS

SPECIFICATION

CONTENT OF Fe 2 O 3

86% min

pH VALUE

3-7

SHADE

CLOSE TO STANDARD

OIL ABSORPTION

25-35%

RESIDUE ON 320 MESH

0.3% max

VOLATITE 105 °C

1.0% max

TINTING STRENGTH

98-102 %