Indium(III) hydroxide
Indium(III) hydroxide (CAS 20661-21-6, In(OH)3) is an inorganic compound with a molecular weight of 165.84 g/mol. Supplied as a powder and chunks, this chemical is primarily utilised in catalysis and chemical synthesis. Its insoluble nature in water, coupled with specific purity levels, makes it a suitable reagent for various research and industrial applications within inorganic chemistry and materials science.

Catalysis
Indium(III) hydroxide can serve as a precursor or component in catalytic systems. Its properties are explored in various chemical transformations, contributing to advancements in synthetic methodologies.
Chemical Synthesis
This compound is a valuable reagent in the synthesis of other indium-containing materials and complex inorganic compounds. It is employed in research settings for developing novel chemical entities.
Materials Science Research
Indium(III) hydroxide finds applications in materials science for the development of advanced materials. Its properties are investigated for potential uses in electronics and other high-technology fields.
| Molecular weight | 165.84 |
|---|---|
| Linear formula | In(OH)3 |
| Assay | 99.99% trace metals basis |
| Form | powder and chunks |
| Density | 4.45 g/mL at 20 °C(lit.) |
| Solubility | H2O: insoluble(lit.) |
| Vapour pressure | <0.01 mmHg (25 °C) |
| Melting point | 150 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Indium(III) hydroxide used for?
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Indium(III) hydroxide is primarily used in catalysis and chemical synthesis, as well as in materials science research.
What are the CAS number and chemical formula for Indium(III) hydroxide?
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The CAS number is 20661-21-6 and the chemical formula is In(OH)3.
What grade and purity does Tech Serve Solutions supply for Indium(III) hydroxide?
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Tech Serve Solutions supplies Indium(III) hydroxide with a purity of 99.99% (trace metals basis). This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.
What are the main safety hazards associated with Indium(III) hydroxide?
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Indium(III) hydroxide is classified with the GHS symbol GHS07 and signal word Warning. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be used when handling this chemical.
How is Indium(III) hydroxide packed, shipped, and exported?
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Indium(III) hydroxide is carefully packed to ensure safe transit and is available for global export by Tech Serve Solutions, a seasoned chemical supplier since 1998.
How can I request a sample or quote for Indium(III) hydroxide?
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To request a sample or a quote for Indium(III) hydroxide, please contact the Tech Serve Solutions sales team through our website or by phone.
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