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Silicates, borates and other salts

Ferrous arsenate

Also known as Ferrum arsenicicum, Ferrum Arsenicosum, Ferrum arsenicosum 6

CAS 10102-50-8Formula As2Fe3O8Molar mass 445.37 g/molEC 233-275-2
Drug substance
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Ferrous arsenate chemical structure, As2Fe3O8, CAS 10102-50-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
A green powder
Solubility
Green amorphous powder, insol in water, sol in acids /Hexahydrate/
HS code
284290
Category
Silicates, borates and other salts
UN number
UN 1608
Illustrative photo, green pigment powder in a glass jar on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Ferrous arsenate?

Plain description, key identifiers and synonyms

Ferrous arsenate is a green powder. It is insoluble in water. It is toxic by ingestion. It is used in insecticides.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
tris(iron(2+)) diarsorate
CAS number
10102-50-8 CAS number cross-checked
EC number
233-275-2
Molecular formula
As2Fe3O8
UNII
129CO35H12
InChIKey
PRDPGWOYQAUJJB-UHFFFAOYSA-H
InChI
InChI=1S/2AsH3O4.3Fe/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6
SMILES (canonical and isomeric)
[O-][As](=O)([O-])[O-].[O-][As](=O)([O-])[O-].[Fe+2].[Fe+2].[Fe+2]

Synonyms

  • Ferrum arsenicicum
  • Ferrum Arsenicosum
  • Ferrum arsenicosum 6
  • Scorodite 6X Special Order
  • Ferrous arsenate, (solid)
  • Ferrum arsenicosum 30 Special Order
  • Iron bis(arsenate)
  • iron(2+), diarsorate
  • Iron(II) arsenate (3:2)
  • Arsenic acid (H3AsO4), iron(2+) salt (2:3)
  • Arsenate of iron, ferrous
  • Iron arsenate (Fe3(AsO4)2)
  • Iron(II) arsenate
  • Iron(2+) arsorate (3/2)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
A green powderexp.
Solubility
Green amorphous powder, insol in water, sol in acids /Hexahydrate/exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
445.37 g/molcalc.
Exact mass
445.6073 Dacalc.
LogP (octanol/water)
-8.14calc.
Topological polar surface area
172.5 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
0calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
5calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms
UN number
UN 1608
Transport hazard class
6.1

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Ferrous arsenate suppliers

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Ferrous arsenate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Insecticide (Hexahydrate).

How it is made

Interaction of soln of sodium arsenate and ferrous sulfate. (Hexahydrate)

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Ferrous arsenate is traded under.

HS 2842.90Indicative HS code

Salts of inorganic acids or peroxoacids, other than double or complex silicates, including aluminosilicates…

World exports in 2024
$2.49B
−46.0% vs 2023, imports $2.84B
2019 to 2024
Top exporters
  1. China82.2%
  2. Germany4.7%
  3. Hong Kong4.0%
Top importers
  1. China77.4%
  2. Indonesia4.7%
  3. Vietnam * partner reported3.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Ferrous arsenate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ferrous arsenate, based on the data on this page

What is Ferrous arsenate?

Ferrous arsenate is a green powder. It is insoluble in water. It is toxic by ingestion. It is used in insecticides.

What is the CAS number of Ferrous arsenate?

The CAS registry number of Ferrous arsenate is 10102-50-8.

What is the molecular formula and weight of Ferrous arsenate?

The molecular formula of Ferrous arsenate is As2Fe3O8 and its molar mass is 445.37 g/mol.

What is Ferrous arsenate used for?

Insecticide (Hexahydrate).

Is Ferrous arsenate hazardous?

No GHS hazard classification for Ferrous arsenate is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Ferrous arsenate?

Ferrous arsenate is usually classified under HS code 284290 (V. SALTS AND PEROXYSALTS, OF INORGANIC ACIDS AND METALS, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ferrous arsenate?

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What is the price of Ferrous arsenate?

Suppliers quote Ferrous arsenate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Ferrous arsenate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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