Name | Bismuth carbonate |
Synonyms | BISMUTH CARBONATE Bismuth carbonate Bismuthi Subnitras bismuthyl carbonate Bismuth Subcarbonate Bismuthcarbonatebasic BISMUTH CARBONATE, BASIC dibismuth carbonate dioxide Bismuth(III) carbonate basic bis(oxobismuthanyl) carbonate BISMUTH(III) CARBONATE BASIC PH EUR Bismuth carbonate oxide (Bi2(CO3)O2) Bismuth (III) Carbonate Hydrate Basic BISMUTH CARBONATE BASIC, EXTRA PURE,DAB, PH. EUR., B. P., PH. FRANC., U. S. P. |
CAS | 5892-10-4 |
EINECS | 227-567-9 |
InChI | InChI=1/CH2O3.2Bi.2O/c2-1(3)4;;;;/h(H2,2,3,4);;;;/q;2*+1;;/p-2/rCBi2O5/c4-1(7-2-5)8-3-6 |
InChIKey | MGLUJXPJRXTKJM-UHFFFAOYSA-L |
Molecular Formula | CH2BiO4(-2) |
Molar Mass | 287 |
Density | 6.86 g/mL at 25 °C (lit.) |
Boling Point | decomposes [CRC10] |
Water Solubility | Practically insoluble in water, alcohol. Soluble in nitric acid, hydrochloric acid, concentrated acetic acid.Soluble in mineral acid and glacial acetic acid. Insoluble in water. |
Solubility | Insoluble in water, insoluble in ethanol, soluble in nitric acid and hydrochloric acid. |
Appearance | White powder |
Color | White powder |
Odor | Odorless |
Merck | 14,1282 |
Storage Condition | Room Temprature |
Stability | Stable. |
MDL | MFCD00010877 |
Physical and Chemical Properties | White or yellowish powder, light gradually turned brown. Odorless and tasteless. The relative density was 6.86. Insoluble in water, ethanol and other organic solvents, soluble in nitric acid, hydrochloric acid and concentrated acetic acid, soluble in ammonium chloride solution, slightly soluble in alkali metal carbonate solution. 308 degrees C decomposition. It is decomposed into carbon dioxide and bismuth oxide when heated and burned. |
Use | Used as an analytical reagent, also used in the manufacture of bismuth salts, used as astringents in the pharmaceutical industry |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 2836992000 |
white powder, odorless, tasteless. It deteriorates slowly when exposed to light, and decomposes after heating. Insoluble in water, ethanol and other organic solvents. Soluble in nitric acid or hydrochloric acid, but also soluble in ammonium chloride solution. Slightly soluble in alkali metal carbonate solution, heat decomposition into carbon dioxide and bismuth oxide. It is easier to suspend in water than in alcohol.
double decomposition method: the content of more than 99.95% of the metal bismuth is heated and melted to make a 20 mesh size of bismuth particles, with 72% nitric acid to dissolve the bismuth particles, and then the indirect steam to promote the reaction is complete, the reaction generates nitric oxide, which is absorbed with water to obtain dilute nitric acid, and returns to the process for use. The obtained bismuth nitrate solution is cooled, crystallized, centrifuged, rinsed with 5% nitric acid, and added with 1.5 times of pure water to make a suspension, rapidly add a certain amount of sodium carbonate solution that has removed chloride ions for double decomposition, and the reaction solution reacts at pH 8.5~9.0 and temperature 50~55 ℃ for 40min to generate bismuth subcarbonate, which is then washed and centrifuged, drying, grinding, preparation of bismuth subcarbonate products.
mainly used for the manufacture of antacids, astringent drugs, the treatment of gastrointestinal dysfunction and malabsorption caused by Diarrhea, abdominal distension, can also treat duodenal ulcer, bacterial dysentery, amoebic dysentery, acute mucosal permeability gastritis, enteritis and Diarrhea. Also for the treatment of mild burns, ulcers.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
pharmacological effects | The pharmacological effects of this product with the basic bismuth nitrate, but less side effects. Oral difficult to absorb, a small part of the gastrointestinal tract dissociated bismuth ions, and protein binding, resulting in convergence and protection of the mucosa. Bismuth carbonate is coated on the surface of the intestinal mucosa, while the free bismuth ions in the intestinal tract can also combine with hydrogen sulfide to form insoluble bismuth sulfide, covering the intestinal surface, thereby providing mechanical protection to the intestinal mucosa, and can reduce the stimulation of hydrogen sulfide on intestinal mucosa. Bismuth subcarbonate has the effect of neutralizing gastric acid, and can adsorb endotoxin, bacteria, Virus in the intestinal mucosa surface to form a thin film protective layer, but also inhibit intestinal peristalsis, so there is convergence, diarrhea effect. [Role and use] Bismuth agent has Convergence, diarrhea and weak anti acid effect, and kill Helicobacter pylori. Can be used for gastrointestinal dysfunction and malabsorption caused by Diarrhea, abdominal distension. Can also be used for high acid peptic ulcer and gastritis. [Adverse reactions] long-term use of large doses, can cause Nausea, Vomit, constipation and alkaline blood. During the medication can make the tongue and stool black. May produce belching and increased gastric acid secretion. [Note] renal insufficiency, pregnant women disabled. Children under 3 years of age are disabled and used with caution. High intestinal obstruction injury, Fever and infectious diarrhea were prohibited. [Drug Interaction] 1. This product can reduce the activity of lactic acid bacteria, reduce the effect of milk enzyme, can not be used. 2. This product can reduce the absorption of oral antibacterial drugs, should not be used. |
toxicity | due to possible lead and arsenic in bismuth salt mixture, bismuth preparation is used for long-term treatment, can make the skin gray. |
uses | mainly used in medicine, can be used to treat gastric and duodenal ulcer, bacterial dysentery, acute mucosal permeability gastritis, enteritis and Diarrhea, et al. It is also used in the manufacture of bismuth salts. It can also be used as an additive for pearlescent plastics and an adhesive for cosmetics. mainly used in the pharmaceutical industry, can also be used as pearlescent plastic additives; Used as an analytical reagent, also used in the production of bismuth salts, used as astringents in the pharmaceutical industry. |
production method | The double decomposition method heats and melts bismuth metal with a content of more than 99.95% to make bismuth particles with a size of 20 mesh, the bismuth particles were dissolved with 72% nitric acid, and the indirect steam was passed to complete the reaction. Nitric oxide is generated in the reaction, and dilute nitric acid is obtained by absorption with water and returned to the process for use. The obtained bismuth nitrate solution is cooled, crystallized, centrifuged, rinsed with 5% nitric acid, and made into a suspension by adding 1.5 times of pure water, and rapidly added with a certain amount of sodium carbonate solution having removed chloride ions for metathesis, the reaction solution was reacted at pH 8.5~9.0 and temperature 50~55 ℃ for 40 min to generate bismuth subcarbonate, which was then washed, centrifuged, dried and pulverized to obtain a finished bismuth subcarbonate product. Bi +6HNO3 → Bi(NO3)3 + 3H2O +3NO2 Δ2bi +8HNO3 → 2Bi(NO3)3 + 4H2O + 2NO Δ4bi (N03)3+6Na2CO3 + H20 → 2(BiO)2CO3 · 1/2H2O +12NaNO3+4CO2 |