Bismuth(III) subnitrate
Bismuth(III) subnitrate (CAS: 1304-85-4), with the chemical formula Bi5O(OH)9(NO3)4 and a molecular weight of 1461.99 g/mol, is an inorganic compound. It presents as a white to yellowish-white powder. This substance is primarily utilised in various chemical applications, including as a reagent in analytical chemistry and as a component in the formulation of other bismuth compounds. Its specific properties make it valuable in certain industrial processes.

Chemical Reagent
Bismuth(III) subnitrate serves as a reagent in analytical laboratories for specific qualitative and quantitative analyses. It can be employed in the synthesis of other bismuth-containing compounds and materials.
Component in Formulations
This compound finds application as a component in various chemical formulations. Its properties are leveraged in niche industrial applications where bismuth compounds are required.
Research and Development
Used in research settings to explore novel chemical reactions and material properties. Its well-defined structure and composition make it a useful starting material for scientific investigations.
| Molecular weight | 1461.99 |
|---|---|
| Linear formula | Bi5O(OH)9(NO3)4 |
| Assay | 98% |


Hazard statements
- H272May intensify fire; oxidiser
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P220Keep away from clothing and combustible materials
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1477 5.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | O,Xi |
| Risk statements (R) | 8-36/37/38 |
| Safety statements (S) | 17-26-36 |
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 Bismuth(III) subnitrate used for?
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Bismuth(III) subnitrate is used as a chemical reagent in analytical chemistry and as a component in various formulations. It also finds application in research and development for the synthesis of new bismuth compounds.
What is the CAS number and chemical formula for Bismuth(III) subnitrate?
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The CAS number for Bismuth(III) subnitrate is 1304-85-4, and its chemical formula is Bi5O(OH)9(NO3)4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bismuth(III) subnitrate with an assay of 98%. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product specifications.
How should Bismuth(III) subnitrate be handled?
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Bismuth(III) subnitrate is an oxidiser and can cause skin, eye, and respiratory irritation. Handle with appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. Avoid contact with combustible materials.
How is Bismuth(III) subnitrate packed, shipped, and exported?
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Bismuth(III) subnitrate is packed in compliance with international shipping regulations, including ADR classification as UN 1477, Hazard Class 5.1, Packing Group II. TSS exports globally, adhering to all necessary export and import controls.
How can I request a sample or quote for Bismuth(III) subnitrate?
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To request a sample or a quote for Bismuth(III) subnitrate, please contact our sales team via the website or direct email, providing your specific requirements and delivery details.
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