Ferric nitrate nonahydrate CAS 7782-61-8
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Ferric nitrate nonahydrate CAS 7782-61-8

Colorless to light purple monoclinic crystal. Melting point 47.2℃. The relative density is 1.684. It decomposes when heated to 125℃. Soluble in water, soluble in ethanol and acetone, slightly soluble in nitric acid. Easy deliquescence. It is oxidizing. Aqueous solutions can be decomposed by ultraviolet light into ferrous nitrate and oxygen. Contact with flammable materials can cause burning and irritation to the skin.
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  • 7782-61-8

  • boss chem

  • 7782-61-8

Ferric nitrate nonahydrate    

CAS No.7782-61-8    


Alias: IRON(+3)NITRATEENNEAHYDRATE;IRON(III)NITRATE;IRON(III)NITRATE-9-HYDRATE;IRON(III)NITRATEENNEAHYDRATEChemicalbook;IRON(III)NITRATE,HYDROUS;IRON(III)NITRATENONAHYDRATE;IRON(III)NITRATE,NONOHYDRATE;FERRICNITRATE9H2O

Molecular formula: FeH18N3O18

Relative molecular mass: 404

Structural formula:


7782-61-8


1. Performance and use:

Iron(III) Nitrate Nonahydrate is a highly water soluble crystalline Iron source for uses compatible with nitrates and lower (acidic) pH. All metallic nitrates are inorganic salts of a given metal cation and the nitrate anion. The nitrate anion is a univalent (-1 charge) polyatomic ion composed of a single nitrogen atom ionically bound to three oxygen atoms (Formula: NO3) for a total formula weight of 62.05.

Ferric nitrate nonahydrate can be used as catalyst, mordant, metal surface treatment agent, oxidant, analytical reagent, radioactive substance adsorbent.

Ferric nitrate nonahydrate is used as a mordant for dyeing black and buff. Other applications are in tanning; weighting silks; and in preparation of analytical standards.

Ferric nitrate nonahydrate is used in the determination of phosphate.

It is used as catalyst for the synthesis of sodium amide from sodium and ammonia, and for etching of silver and silver alloys. Ferric nitrate is used in the synthesis of organically templated iron phosphates, and acts as an efficient catalyst in enamination of beta dicarbonyl compounds to beta enaminones. Ferric nitrate impregnated clays are useful as oxidizing agents. Clayfen, produced from ferric nitrate and montmorillonite, is used for the oxidation of thiols to disulfide, and alcohols to aldehydes. Ferric nitrate is useful for regio- and stereo-selective nitration of various aromatic, aliphatic, and heteroaromatic olefins. This reaction provides nitroolefins with excellent E-selectivity. With Keggin-type heteropoly acids, it selectively oxidizes various hydroxy groups.    


2. Technical indicators

Ferric nitrate nonahydrate Basic information
Description Uses analysis method Preparation Physical Properties Uses Preparation
Product Name: Ferric nitrate nonahydrate
CAS: 7782-61-8
MF: FeH18N3O18
MW: 404
EINECS: 616-509-1
Mol File: 7782-61-8.mol
Ferric nitrate nonahydrate Chemical Properties
Melting point 47 °C(lit.)
Boiling point 125°C
density 1,68 g/cm3
Fp 125°C
storage temp. Store at +5°C to +30°C.
solubility very soluble in ethanol, acetone
form Solid
Specific Gravity 1.684
color White to gray or light purple
PH 1.3 (100g/l, H2O, 20℃)
Water Solubility soluble
Sensitive Moisture Sensitive
Merck 144,027
Exposure limits ACGIH: TWA 1 mg/m3
NIOSH: TWA 1 mg/m3
Stability: Stable. Strong oxidizer - contact with combustible material may lead to fire. Incompatible with combustible material, strong reducing agents, most common metals, organic material. May be light sensitive.
CAS DataBase Reference 7782-61-8(CAS DataBase Reference)
EPA Substance Registry System Ferric nitrate nonahydrate (7782-61-8)

Product name: Ferric Nitrate
Molecular formula: Fe(NO3)3•9H2O
Molecular weight: 404.02
CAS NO.: 7782-61-8
HS CODE: 28342990
UN NO.: 1466 5.1 class oxidizing agent
Properties: Light purple crystal. Relative density is 1.68, melting point is 47.2℃. It breaks down if heated to 125℃.
Technical indicators:

Item Unit Electronic grade Catalyst grade Industrial grade
Assay Fe(NO3)3•9H2O NLT% 99.0 98.0 98.0
Water insoluble matter NMT% 0.005 0.01 0.1
Chloride(Cl) NMT% 0.005 0.002 0.1
Sulfate (SO 4) NMT% 0.005 0.01 0.05
Copper (Cu) NMT% 0.0003 0.001 -
Zinc (Zn) NMT% 0.001 0.003 -
Manganese (Mn) NMT% 0.002 - -
No precipitation matter in ammonium hydroxide(Sulfate) NMT% 0.05 0.1 0.2
Appearance - Light purple crystal Light purple crysta


3. Packaging and storage

Store in a cool, dry and well-ventilated warehouse.Keep away from fire and heat. Separate from flammable materials, reducing agents, and active metal powders.



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