Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

Build a label

Substance profile

Iron (II) sulfate (1:1) heptahydrate

Iron (II) sulfate (1:1) heptahydrate: CBI.

CAS 7782-63-0 FeH14O11S 278.02 g/mol Warning

01 · Identification

What Iron (II) sulfate (1:1)… is

Iron (II) sulfate (1:1) heptahydrate: CBI. Its molecular formula is FeH14O11S and its molecular weight is 278.02 g/mol.

Under the GHS it carries the signal word Warning.

CAS number7782-63-0
EC number231-753-5
Index number026-003-01-4
Molecular formulaFeH14O11S
Molecular weight278.02 g/mol

Other names for Iron (II) sulfate (1:1)…

  • sulfuric acid, iron(II) salt (1:1), heptahydrate
  • ferrous sulfate heptahydrate

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Signal wordWarning
Hazard statements assigned to Iron (II) sulfate (1:1)…
CodeHazard statement
H302 Harmful if swallowed.
H315 Causes skin irritation.
H319 Causes serious eye irritation.

Precautionary statements: P264, P270, P280, P301, P302, P305, P312, P313, P330, P332, P337, P338, P352

This page lists only the codes assigned to Iron (II) sulfate (1:1)…. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.

03 · Physical and chemical properties

Iron (II) sulfate (1:1)… properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Property Value Conditions Source
Density 1.895 g/cm³ at 25 °C DOE PAC

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

Safety Data Sheet

Getting an SDS for Iron (II) sulfate (1:1)…

A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Iron (II) sulfate… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.

Get the free GHS / CLP / OSHA deadline calendar

Verified 2026–2029 compliance dates in one PDF — plus alerts when the rules change.