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Bismuth trioxide
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Name

Bismuth trioxide

 EINECS 215-134-7
CAS No. 1304-76-3 Density 8.9 g/cm3
PSA 0.00000 LogP -0.35640
Solubility insoluble in water Melting Point 817 °C
Formula Bi2O3 Boiling Point 1890 °C
Molecular Weight 465.959 Flash Point 1890°C
Transport Information N/A Appearance yellow crystalline
Safety 26-36/37-36 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 1304-76-3 (Bismuth oxide) Hazard Symbols IrritantXi,HarmfulXn
Synonyms

Bismuthoxide;Bismuth sesquioxide;Bismuth yellow;Bismuth(3+) oxide;Bismuth(III)oxide;Bismuthous oxide;C.I. 77160;Dibismuth trioxide;Nanoarc;Nanotek;Bismuth oxide (Bi2O3);

Article Data 377

Bismuth trioxide Synthetic route

dimethyl-diphenyl-arsonium; tetraiodo bismuthate(III)

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
With ammonium hydroxide In ammonia hydrolysis on boiling in 0.5n NH4OH solution;;100%

trimethyl-phenyl-arsonium; tetraiodo bismuthate(III)

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
With ammonium hydroxide In ammonia hydrolysis on boiling in 0.5n NH4OH solution;;100%

dimethyl-di-p-tolyl-arsonium; tetraiodo bismuthate(III)

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
With ammonium hydroxide In ammonia hydrolysis on boiling in 0.5n NH4OH solution;;100%

methyl-tri-p-tolyl-arsonium; tetraiodo bismuthate(III)

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
With ammonium hydroxide In ammonia hydrolysis on boiling in 0.5n NH4OH solution;;100%

trimethyl-p-tolyl-arsonium; tetraiodo bismuthate(III)

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
With ammonium hydroxide In ammonia hydrolysis on boiling in 0.5n NH4OH solution;;100%

methyl-triphenyl-arsonium; tetraiodo bismuthate(III)

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
With ammonium hydroxide In further solvent(s) hydrolysis on heating in 0.5n NH4OH solution;;100%

bismuth(III) chloride

497-19-8

sodium carbonate

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
In water at 90℃; for 0.5h;95%

bismuth(III) acetate oxide

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
In propan-1-ol at 200℃;
In neat (no solvent) byproducts: CH3COOH; formation of acetic acid and Bi2O3 on heating above 150°C;; Bi2O3 contaminated by metallic Bi;;

bismuth(III) sulfide

mercury(II) oxide

A

1304-76-3

bismuth(III) oxide

B

mercury sulfide

Conditions
ConditionsYield
reaction on surface between HgO and Bi2S3; 200°C, 2 h;
In neat (no solvent) heating at 200°C;;
reaction on surface between HgO and Bi2S3; 200°C, 2 h;
In neat (no solvent) heating at 200°C;;

bismuth(III) selenite

A

7446-08-4

selenium(IV) oxide

B

1304-76-3

bismuth(III) oxide

Conditions
ConditionsYield
In neat (no solvent) Kinetics; isothermal heating of Bi selenite in open Pt crucible in N2 flow (25 cm**3/min), temp. interval of 723-923 K;

Bismuth trioxide Consensus Reports

Reported in EPA TSCA Inventory.

Bismuth trioxide Specification

The Bismuth oxide, with the cas registry number 1304-76-3, has the IUPAC name of oxo(oxobismuthanyloxy)bismuthane. Being a kind of yellow crystal, it is soluble in acid while insoluble in water and alkali.

Its product categories are including Inorganics; Bismuth; 83: Bi; BismuthMaterials Science; BismuthMetal and Ceramic Science; Catalysis and Inorganic Chemistry; Chemical Synthesis; Nanomaterials; Nanoparticles: Oxides, Nitrides, and Other CeramicsNanomaterials; Nanopowders and Nanoparticle Dispersions; Oxides.

The characteristics of this chemical are as below: (1)#H bond acceptors: 3; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 2; (4)Polar Surface Area: 43.37; (5)Exact Mass: 465.94551; (6)MonoIsotopic Mass: 465.94551; (7)Topological Polar Surface Area: 43.4; (8)Heavy Atom Count: 5; (9)Complexity: 34.2; (10)Covalently-Bonded Unit Count: 1.

The production method of this chemical is below: add sodium hydroxide solvent without carbon dioxide into the bismuth nitrate solution and then mix it; Next the solution will be keep its basicity in its sediment to product white Bi(OH)3 sediment; Then heat the solution and stir for a little while to produce yellow bismuth trioxide; Lastly, go through the process of washing, filtering, drying to produce this chemical.

As to its usage, it is widely applied in many ways. It could be used in producing bismuth metal, catalytic agent, Bi-system oxidizing material superconductor; It could also be used in other fields, such as xature okto, rubber compound ingredients, pharmaceutics, red glass ingredient.

When you are dealing with this chemical, you should be very cautious. For one thing, it is irritating to eyes, respiratory system and skin and may cause inflammation to the skin or other mucous membranes. For another thing, it is harmful which may cause damage to health. If by inhalation, in contact with skin and if swallowed, it will be harmful. Therefore, you should wear suitable protective clothing and gloves, and if in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

In addition, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: O=[Bi]O[Bi]=O
(2)InChI: InChI=1S/2Bi.3O
(3)InChIKey: WMWLMWRWZQELOS-UHFFFAOYSA-N 

Below are the toxicity information of this chemical:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 10gm/kg (10000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 30(6), Pg. 16, 1986.
rat LD50 oral 5gm/kg (5000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 30(6), Pg. 16, 1986.

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