Potassium bromide (CAS 7758-02-3) — formula KBr, molecular weight 117.88 g/mol.
Documented applications: Uses: Used to make photographic papers and plates, for process engraving and lithography, in special soaps, for spectroscopy, for infrared transmission, as laboratory reagent, as heat stabilizer for nylon, as raw material for silver bromide photographic emulsions, as medical and veterinary sedative and anticonvulsant, [HSDB] Used in 2 pesticide products: a sanitizer for food processing and eating establishments and a tablet to control bacteria and algae in spa water, [Reference #1] Used in photography (baths for developing and intensifying), [www.ci.tucson.az.us, arthazards, medium.html], Photographic Processing [Category: Other], Intalagio printing [Category: Hobbies], Lithography printing [Category: Hobbies], MEDICATION, MEDICATION (VET), For potassium bromide (USEPA, OPP Pesticide Code: 013903) there are 0 labels match., SRP: Not registered for current use in the USA., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Potassium bromide may be utilized for the production of photographic-grade silver bromide. It also finds use in process engraving, lithography ... Other uses for potassium bromide are in clear completion fluids in the petroleum industry, as a pharmaceutical intermediate, and in the manufacture of fibers., For more Uses (Complete) data for Potassium bromide (6 total), please visit the HSDB record page., Widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries, but today is only used in veterinary medicine, as an antiepileptic medication for dogs and cats., Use Classification: Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients, Methods of Manufacturing: Solutions of iron bromide and potassium carbonate are mixed and heated, the solution filtered and concentrated, and the bromide crystallized out., Treatment of iron turnings with a 35% aqueous solution of bromine. Ferrosoferric bromide forms and can be crystallized. The iron bromide is heated to a boil with a slight excess of 15 wt% potassium carbonate solution. This forms a precipitate, potassium bromide, that is readily filtered with no further purification necessary., ... The reaction of bromine with potassium carbonate and urea is the basis of the process. The first step of the process involves the addition of K2SO4 to the potassium carbonate solution, followed by heating to 80 °C. After the lead-containing precipitate is removed by filtration, the bromine and urea are added, and the temperature and pH are adjusted to 30 °C and 6.0-6.5, respectively. Potassium bromide is recovered by recrystallization after reduction of volume of the reacting solution by evaporation. The sulfate can be removed from the solution by addition of BaBr2., Formulations, Preparations: Grades: Technical, CP (chemically pure), NF (National Formulary), reagent, single crystals., Available:, Photograde, 99% min, Halide 11-Granular and solution grade, U.S. Production: (1977) No Data, (1979) No Data, (1987) No Data, Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#5094], Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: potassium bromide:, Table: National Aggregate Production Volume (pounds) [Table#5095], U.S. Imports: (1977) 4.04X10+7 GRAMS, (1979) 3.60X10+8 GRAMS, (1985) 4.39x10+8 g, U.S. Exports: (1977) No Data, General Manufacturing Information: Potassium bromide (KBr): ACTIVE, DURING PRODUCTION OF BROMIDE SALTS, BROMINE MAY BE RELEASED INTO AIR IF REACTION VESSELS ARE NOT FULLY GAS-TIGHT, & HIGH ATMOSPHERIC CONCN MAY DEVELOP WHEN REACTION VESSELS ARE OPENED FOR CHARGING OR DISCHARGING., BROMIDE SALTS.
Potassium bromide is a chemical compound with CAS registry number 7758-02-3 and molecular formula KBr (molecular weight 117.88 g/mol).
CAS number: 7758-02-3
Its molecular formula KBr comprises 1 K, 1 Br atoms.
Also known as: Potassium bromide · POTASSIUM BROMIDE, ACS
The CAS registry number of Potassium bromide is 7758-02-3.
Molecular formula KBr, molecular weight 117.88 g/mol.
It is also registered under: Potassium bromide, POTASSIUM BROMIDE, ACS.
Recorded applications: Uses: Used to make photographic papers and plates, for process engraving and lithography, in special soaps, for spectroscopy, for infrared transmission, as laboratory reagent, as heat stabilizer for nylon, as raw material for silver bromide photographic emulsions, as medical and veterinary sedative and anticonvulsant, [HSDB] Used in 2 pesticide products: a sanitizer for food processing and eating establishments and a tablet to control bacteria and algae in spa water, [Reference #1] Used in photography (baths for developing and intensifying), [www.ci.tucson.az.us, arthazards, medium.html], Photographic Processing [Category: Other], Intalagio printing [Category: Hobbies], Lithography printing [Category: Hobbies], MEDICATION, MEDICATION (VET), For potassium bromide (USEPA, OPP Pesticide Code: 013903) there are 0 labels match., SRP: Not registered for current use in the USA., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Potassium bromide may be utilized for the production of photographic-grade silver bromide. It also finds use in process engraving, lithography ... Other uses for potassium bromide are in clear completion fluids in the petroleum industry, as a pharmaceutical intermediate, and in the manufacture of fibers., For more Uses (Complete) data for Potassium bromide (6 total), please visit the HSDB record page., Widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries, but today is only used in veterinary medicine, as an antiepileptic medication for dogs and cats., Use Classification: Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients, Methods of Manufacturing: Solutions of iron bromide and potassium carbonate are mixed and heated, the solution filtered and concentrated, and the bromide crystallized out., Treatment of iron turnings with a 35% aqueous solution of bromine. Ferrosoferric bromide forms and can be crystallized. The iron bromide is heated to a boil with a slight excess of 15 wt% potassium carbonate solution. This forms a precipitate, potassium bromide, that is readily filtered with no further purification necessary., ... The reaction of bromine with potassium carbonate and urea is the basis of the process. The first step of the process involves the addition of K2SO4 to the potassium carbonate solution, followed by heating to 80 °C. After the lead-containing precipitate is removed by filtration, the bromine and urea are added, and the temperature and pH are adjusted to 30 °C and 6.0-6.5, respectively. Potassium bromide is recovered by recrystallization after reduction of volume of the reacting solution by evaporation. The sulfate can be removed from the solution by addition of BaBr2., Formulations, Preparations: Grades: Technical, CP (chemically pure), NF (National Formulary), reagent, single crystals., Available:, Photograde, 99% min, Halide 11-Granular and solution grade, U.S. Production: (1977) No Data, (1979) No Data, (1987) No Data, Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#5094], Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: potassium bromide:, Table: National Aggregate Production Volume (pounds) [Table#5095], U.S. Imports: (1977) 4.04X10+7 GRAMS, (1979) 3.60X10+8 GRAMS, (1985) 4.39x10+8 g, U.S. Exports: (1977) No Data, General Manufacturing Information: Potassium bromide (KBr): ACTIVE, DURING PRODUCTION OF BROMIDE SALTS, BROMINE MAY BE RELEASED INTO AIR IF REACTION VESSELS ARE NOT FULLY GAS-TIGHT, & HIGH ATMOSPHERIC CONCN MAY DEVELOP WHEN REACTION VESSELS ARE OPENED FOR CHARGING OR DISCHARGING., BROMIDE SALTS.
Public-database records for Potassium bromide (CAS 7758-02-3), reproduced here for independent cross-checking.
| GHS notification summary | 3.2% (17 / 538) |
|---|---|
| Reported hazard statements | H315 (12.6%), H319 (91.4%), H335 (12.3%) |
This chemical does not meet GHS hazard criteria for 3.2% (17 of 538) of reports.
H315 (12.6%): Causes skin irritation [Warning Skin corrosion/irritation]
| Regulatory & Food Contact | FDA Substance added to food: WASHING OR SURFACE REMOVAL AGENT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS |
|---|---|
| GHS notification summary | 3.2% (17 / 538) |
| 沸点 | 2615 °F at 760 mmHg (NTP, 1992) |
|---|---|
| 沸点 | 1435 °C |
| 沸点 | 1435 °C @760 [mm Hg] |
| 熔点 | 1346 °F (NTP, 1992) |
| 熔点 | 730 °C |
| 熔点 | 734 °C |
| 溶解度 | In water, 67.8 g/100 g at 25 °C |
| 密度 | 2.74 g/cu cm at 25 °C |
| 密度 | 2.75 @25 °C |
| 蒸气压 | 1 mmHg at 1463 °F (NTP, 1992) |
| CAS Registry Number | 7758-02-3 |
|---|---|
| PubChem CID | 253877 |
| 分子式 | KBr |
| 分子量 | 117.88 g/mol |
| IUPAC 名称 | potassium bromide |
| InChIKey | IOLCXVTUBQKXJR-UHFFFAOYSA-M |
| UNII（FDA） | OSD78555ZM |
| ChEBI 编号 | CHEBI:32030 |
POTASSIUM BROMIDE; 7758-02-3; Bromide salt of potassium; Potassium bromide (KBr); Bromure de potassium; Kaliumbromid; Kalii bromidum; Kali bromatum; Tripotassium tribromide; NSC-77367; OSD78555ZM; DTXSID5025946; CHEBI:32030; bromopotassium; Pot brom; K-BroVet
| 分子量 | 119.00 |
|---|---|
| 氢键供体数 | 0 |
| 氢键受体数 | 1 |
| 可旋转键数 | 0 |
| 精确质量 | 117.88204 |
| 单同位素质量 | 117.88204 |
| 拓扑极性表面积 | 0 |
| 重原子数 | 2 |
| 形式电荷 | 0 |
| 复杂度 | 2 |
Potassium bromide is identified by CAS 7758-02-3, molecular formula KBr and molecular weight 117.88 g/mol. UNII OSD78555ZM; ChEBI 32030; InChIKey IOLCXVTUBQKXJR-UHFFFAOYSA-M. 沸点: 2615 °F at 760 mmHg (NTP, 1992); 沸点: 1435 °C; 沸点: 1435 °C @760 [mm Hg].
Source: PubChem / Wikidata; the batch COA governs where values differ.
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