Chromium Nitrate

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250.00 - 500.00 / kg( + 18% GST applicable)

25 Kilogram (MOQ)

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Business Type	Manufacturer, Exporter, Supplier
Brand Name	Indian
Form	Powder
CAS No.	7789-02-8
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Product Details

Purity

High Purity Grade For Industrial Applications

Packaging Type

BOPP Bags, Typically Comes In Sealed Containers

Solubility

Soluble In Water

Formula

Cr(NO3)3

Usage

Commonly Used In The Production Of Catalysts And Pigments

Melting Point

83.5°C

Boiling Point

Not Applicable (decomposes)

Type

Inorganic Compound

Delivery Time

4 to 6 days

Packaging Details

25 kgs bag or 50 kgs bag

Chromium(III) nitrate is an inorganic chemical compound consisting of chromium in its $+3$ oxidation state paired with nitrate anions. Commercial forms are almost exclusively found as the hydrated salt, Chromium(III) nitrate nonahydrate ($\text{Cr}(\text{NO}_3)_3 \cdot 9\text{H}_2\text{O}$).

Key Chemical & Physical Properties

Property	Anhydrous Form	Nonahydrate Form (Most Common)
Chemical Formula	$\text{Cr}(\text{NO}_3)_3$	$\text{Cr}(\text{NO}_3)_3 \cdot 9\text{H}_2\text{O}$
CAS Registry Number	13520-68-3	7789-02-8
Molar Mass	$238.01\text{ g/mol}$	$400.15\text{ g/mol}$
Appearance	Green-black powder / crystals	Dark purple-violet to deep blue-green crystals
Density	$1.85\text{ g/cm}^3$	$1.80\text{ g/cm}^3$
Melting Point	Decomposes	$\sim60^\circ\text{C}$ (dissolves in its own water of crystallization)
Thermal Decomposition	Decomposes $>100^\circ\text{C}$	Decomposes to $\text{Cr}_2\text{O}_3$, $\text{NO}_2$, and $\text{O}_2$ around $100^\circ\text{C}$
Solubility in Water	Soluble	Highly soluble ($\sim81\text{ g/100 mL}$ at $20^\circ\text{C}$)
Solubility in Solvents	Soluble in alcohol, acetone	Soluble in ethanol, methanol, and acetone
Aqueous Solution pH	Acidic	Acidic ($\text{pH } 2 - 3$)

Structure & Coordination

In its aqueous or hydrated state, chromium(III) nitrate forms the hexaaquachromium(III) complex ion $[\text{Cr}(\text{H}_2\text{O})_6]^{3+}$, surrounded by three nitrate anions ($\text{NO}_3^-$) and three uncoordinated lattice water molecules. This octahedral complex gives aqueous solutions and crystals their characteristic deep reddish-purple or dark green appearance.

Primary Applications

Catalyst Manufacturing: Serves as a primary precursor for synthesizing chromium-based, alkali-metal-free catalysts used in organic oxidation and polymerization reactions.
Textile & Leather Processing: Used as a mordant in textile printing and dyeing operations to bind dyes to fibers, as well as in specialized leather tanning.
Corrosion Control & Metal Finishing: Used as a surface treatment agent and corrosion inhibitor on metal surfaces.
Chemical Synthesis: Used as a source of soluble $\text{Cr}^{3+}$ ions to synthesize other chromium chemicals, inorganic pigments, and chrome oxide coatings.
Laboratory Reagent: Applied in analytical chemistry as a reagent and in biochemistry research.

Safety & Handling

Oxidizing Agent: As a nitrate salt, it is an oxidizer (UN 2720, Hazard Class 5.1). Keep away from combustible materials, organic solvents, and strong reducing agents.
Irritant: Causes skin and eye irritation; exposure to dust or mists should be avoided. Use suitable personal protective equipment (gloves, safety goggles, and dust mask).
Toxicity: $\text{Cr(III)}$ compounds are significantly less toxic than carcinogenic hexavalent chromium ($\text{Cr(VI)}$), but standard precautions for heavy metal salt disposal apply.