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7758-02-3 Suppliers

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Product FOB Price Min.Order Supply Ability Supplier
Potassium bromide
Cas No: 7758-02-3
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
99% Potassium bromide
Cas No: 7758-02-3
No Data 10 Gram 100 Kilogram/Week Triumph International Development Limilted Contact Supplier
High quality Potassium Bromide supplier in China
Cas No: 7758-02-3
No Data 1 Metric Ton 5000 Metric Ton/Year Simagchem Corporation Contact Supplier
Fresh In Stock:Potassium Bromide with BEST PRICE
Cas No: 7758-02-3
USD $ 1.0-1.0 / Kilogram 1 Kilogram 2000 Metric Ton/Year Scale Chemical Corporation Contact Supplier
Potassium bromide
Cas No: 7758-02-3
USD $ 1.0-1.0 / Kilogram 1 Kilogram 1000 Metric Ton/Year Henan Sinotech Import&Export Corporation Contact Supplier
Potassium bromide 7758-02-3
Cas No: 7758-02-3
No Data 100 Kilogram 300 Kilogram/Month HENAN SUNLAKE ENTERPRISE CORPORATION Contact Supplier
Potassium bromide
Cas No: 7758-02-3
No Data 1 Kilogram 300 Metric Ton/Year Jinan Finer Chemical Co., Ltd Contact Supplier
Factory supply Potassium bromide with best price
Cas No: 7758-02-3
No Data No Data 1000 Metric Ton/Month Crovell Biotech (Hebei) Co., Ltd. Contact Supplier
TIANFU-CHEM CAS:7758-02-3 Potassium bromide
Cas No: 7758-02-3
No Data 1 Gram 1 Metric Ton/Day Henan Tianfu Chemical Co., Ltd. Contact Supplier
Guarantee highest quality Cas no 7758-02-3 Potassium bromide
Cas No: 7758-02-3
No Data 100 Gram 20000 Kilogram/Day Hubei XinRunde Chemical Co., Ltd Contact Supplier

7758-02-3 Usage


Industry Application Role/benefit
Photography Preparation of developing agent Restrainer/ improves differentiation between exposed and unexposed crystals of silver halide, and thus reduces fog
Print developing solution Alkaline accelerator/increases the printing density of thin negatives
Optics Infrared spectroscopy Sample carrier/has no significant optical absorption lines in its high transmission region
Human medicine Treatment of epileptic and seizure disorders Effective component/anti-convulsant and sedative activity
Veterinary Treatment of seizures in dogs, cats,etc. Effective component/anti-convulsant and sedative activity
Chemical analysis Titration determination of copper and silver Titration agent
Polarographic analysis of indium, cadmium and arsenic Analytical agent
Removal of peripheral membrane proteins

Fire Hazard

Flash point data for Potassium bromide are not available; however, Potassium bromide is probably nonflammable.

Purification Methods

Crystallise the bromide from distilled water (1mL/g) between 100o and 0o. Wash it with 95% EtOH, followed by Et2O. Dry it in air, then heat it at 115o for 1hour, pulverize it, then heat it in a vacuum oven at 130o for 4hours. It has also been crystallised from aqueous30% EtOH, or EtOH, and dried over P2O5 under vacuum before heating in an oven.


The bromide is first reacted with scrap iron to obtain the Fe3Br8 • 16H2O, followed by reaction with the boiling potassium carbonate solution. Fe3Br8 • 16H2O + K2CO3-boiling heat-> 8KBr + Fe3O4 + 4CO2 + 16H2O, the Fe3O4 is filtered, followed by concentration to obtain potassium bromide.
Urea reduction method: send the caustic potassium solution dissolved with urea caustic potassium solution sent to the reactor. Slowly add bromine at 80 ° C for reaction. The reaction is completed when the Ph value is 6-7. The reaction solution is added to the storage tank, subjecting to activated carbon decolorization. When the solution becomes clean, apply filtering, evaporation, crystallization, centrifugal separation and drying, that is the finished product of potassium bromide. Its reaction equation is:
3Br2 + 6KOH + CO (NH2) 2 → 6KBr + 5H2O + CO2 ↑ + N2 ↑

General Description

Odorless colorless crystals or white crystalline powder or white granular solid with a pungent bitter saline taste. Aqueous solutions are neutral (pH about 7).


ChEBI: A metal bromide salt with a K(+) counterion.

Air & Water Reactions

Water soluble.


Avoid ingestion or inhalation; avoid eye and skin contact. Upon ingestion, head dizziness, nausea may occur. Immediately seek medical treatment; Upon inhalation, vomiting will happen, the patient should be immediately moved to place with fresh air and sent for medical treatment; if splashed into eyes, immediately rinse with a lot of fresh water for 2 0min; skin, upon being contact with potassium bromide, should also be subject to rinsing with plenty of water.

Spectrum purity

For IR detection; used for infrared sample preparation;
Solubility (g/100ml)
0 ° C to 53.6 g; 10 ° C to 59.5 g; 20 ° C to 65.3 g; 30 ° C to 70.7 g; 40 ° C to 75.4 g
60 ° C to 85.5 g; 80 ° C to 94.9 g; 90 ° C to 99.2 g; 100 ° C to 104 g.


Potassium bromide can be used as analytical reagents and developers, but also for the pharmaceutical industry.
It can be used as the emulsion reagents for the filmstrip and photo film; used for formulating developer, used as a sedative in medical treatment.
In photographic materials, Potassium bromide is used in the manufacture of photographic film, developer, film thickener, toner and color photo bleach. In medication, it is used as nerve tranquilizers (tribromide). In addition, it is also used for chemical analysis reagents, the transmission of the spectra and infrared ray, for making special soap as well as being used in sculpture, lithography and so on.
It can be used for the preforming in the infrared test.

Reactivity Profile

Potassium bromide is not in generally strongly reactive. A weak reducing agent, incompatible with oxidizing agents. Also incompatible with salts of mercury and silver. Violent reactions occur with bromine trifluoride. May react with nitrous ether spirit, many alkaloidal salts and starch. May also react with acids . Reacts with concentrated sulfuric acid to generate fumes of hydrogen bromide.


manufacture of photographic papers and plates; process engraving.

7758-02-3 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma-Aldrich (38835)  Bromide standard concentrate 10.00 gr Br-  analytical standard, 10.00 g/L, for 1 l standard solution 7758-02-3 38835-1EA 332.28CNY Detail
Sigma-Aldrich (P0838)  Potassiumbromide  BioXtra, ≥99.0% 7758-02-3 P0838-1KG 2,921.49CNY Detail
Sigma-Aldrich (P0838)  Potassiumbromide  BioXtra, ≥99.0% 7758-02-3 P0838-250G 962.91CNY Detail
Fluka (90737)  Potassiumbromide  TraceSELECT®, ≥99.9995% (metals basis) 7758-02-3 90737-100G 2,754.18CNY Detail
Fluka (90737)  Potassiumbromide  TraceSELECT®, ≥99.9995% (metals basis) 7758-02-3 90737-25G 988.65CNY Detail
Sigma-Aldrich (P9881)  Potassiumbromide  ReagentPlus®, ≥99.0% 7758-02-3 P9881-1KG 1,153.62CNY Detail
Sigma-Aldrich (P9881)  Potassiumbromide  ReagentPlus®, ≥99.0% 7758-02-3 P9881-500G 779.22CNY Detail
Aldrich (229792)  Potassiumbromide  99.99% trace metals basis 7758-02-3 229792-50G 4,219.02CNY Detail
Vetec (V900051)  Potassiumbromide  Vetec reagent grade, 99% 7758-02-3 V900051-500G 109.98CNY Detail
Sigma-Aldrich (221864)  Potassiumbromide  FT-IR grade, ≥99% trace metals basis 7758-02-3 221864-100G 3,628.17CNY Detail
Sigma-Aldrich (221864)  Potassiumbromide  FT-IR grade, ≥99% trace metals basis 7758-02-3 221864-25G 1,271.79CNY Detail
Aldrich (449970)  Potassiumbromide  anhydrous, beads, −10 mesh, ≥99.9% trace metals basis 7758-02-3 449970-100G 2,006.55CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017


1.1 GHS Product identifier

Product name potassium bromide

1.2 Other means of identification

Product number -
Other names Potassium bromide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Adhesives and sealant chemicals,Intermediates,Photosensitive chemicals,Solvents (for cleaning or degreasing)
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7758-02-3 SDS

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