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Product Description
Iron Oxide Red#1309-37-1
Iron oxides are produced synthetically and consist essentially of anhydrous and/or hydrated iron oxides. The range of hues includesyellows, reds, browns and blacks. Food quality iron oxides are primarily distinguished from technical grades by the comparatively low levels of contamination by other metals.

Ferric oxide Chemical Properties |
Melting point | 1538°C |
density | 5.24 |
Fp | >230 °F |
storage temp. | 2-8°C |
solubility | It is soluble In Warm Hydrochloric Acid, Slightly Soluble in Sulfuric Acid. |
form | pieces |
color | black |
Specific Gravity | 5.1~5.2 |
PH | 3.7±0.3 |
Water Solubility | INSOLUBLE |
Crystal Structure | Corundum type |
crystal system | Three sides |
Merck | 14,4028 |
Space group | R3c |
Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.502590.502591.373590901200.3005 |
Exposure limits | ACGIH: TWA 5 mg/m3OSHA: TWA 10 mg/m3; TWA 15 mg/m3; TWA 5 mg/m3NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3 |
Stability: | Stable. |
CAS DataBase Reference | 1309-37-1(CAS DataBase Reference) |
NIST Chemistry Reference | Iron(iii) oxide(1309-37-1) |
IARC | 3 (Vol. 1, Sup 7) 1987 |
EPA Substance Registry System | Ferric oxide (1309-37-1) |
Safety Information |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26 |
OEB | B |
OEL | TWA: 5 mg/m3 |
WGK Germany | - |
RTECS | NO7400000 |
TSCA | Yes |
HS Code | 28211000 |
Hazardous Substances Data | 1309-37-1(Hazardous Substances Data) |
IDLA | 2,500 mg Fe/m3 |
Product Usage
Red iron oxide (Fe2O3) is an inorganic pigment of either natural or synthetic origin. It is a low chroma red with excellent durability and low cost. Synthetic pigment is made by heating iron sulfate with quicklime in a furnace. The second preparatory technique involves calcining iron sulfate in the presence of air at high temperatures. Natural and oxides of iron are mined either as the mineral hematite (Fe2O3) or as hematite in its hydrated form.
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We provide fully compliant, safe and customizable packaging solutions for Sodium Hydroxide, Calcium Chloride, Sodium Carbonate, Potassium Hydroxide and all our industrial chemical products. All packaging strictly follows UN, IMDG and IATA international transport standards, with anti-leakage, moisture-proof and corrosion-resistant design. We also offer professional loading, container reinforcement and full-process traceable global shipping services, ensuring your goods arrive safely and on time at any destination worldwide.
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