Agent Name

Goethite

CAS Number

1310-14-1

Formula

Fe-H-O2

Major Category

Mineral Dusts

Synonyms

YELLOW IRON OXIDE; Ochre; [Prince Agri MSDS]

Category

Other Mineral Dusts

Description

Yellow-brown to dark brown mineral; [Merck Index] Yellow-brown odorless powder; Insoluble in water (< 0.5%); [Prince Agri MSDS]

Sources/Uses

". . . An iron bearing hydroxide mineral of the diaspore group, is found in soil and other low-temperature environments. Goethite has been well known since ancient times for its use as a pigment (ochre)." [Wikipedia]

Comments

Contains 25% crystalline silica (CAS# 14808-60-7), 6% aluminum oxide (CAS# 1344-28-1), and 2.3% manganese compounds (CAS# 7439-96-5); An eye irritant; Chronic inhalation exposure may cause respiratory disease; [Prince Agri MSDS] See "Silica, crystalline." See "Ferric hydroxide," "Ferrous hydroxide," "Iron oxide (Fe2O3) and "Iron oxide (FeO)."

Adverse Effects
Fibrogenic

Yes

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