
Potassium Bromide CAS 7758-02-3



Factory Supply Potassium Bromide CAS 7758-02-3 with Best Price
- Appearance: White powder
- Purity: 99. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: Potassium Bromide Supplier & Manufacturer
Potassium Bromide: The Complete Guide
- Item 1: Basic Info of Potassium Bromide
- Item 2: What is Potassium Bromide?
- Item 3: Potassium Bromide Uses
- Item 4: The Manager has Something to Say
- Item 5: Application of Potassium Bromide
- Item 6: Preparation of Potassium Bromide
- Item 7: Quality Control of Potassium Bromide
- Item 8: Hot Sale Products
- Item 9: Get Potassium Bromide Quotation
Potassium Bromide for Sale
Basic Info of Potassium Bromide
Chemical Name: | Potassium Bromide |
Other Name: | Kalium bromide; K bromide; Bromuredepotassium; Hydrobromic acid potassium salt |
CAS: | 7758-02-3 |
EINECS: | 231-830-3 |
Type: | Inorganic salt; Pharmaceutical raw materials |
Molecular Formula: | BrK |
Molecular Weight: | 119 |
Melting point | 734 °C (lit.) |
Boiling point | 1435 °C/1 atm (lit.) |
density | 3.119 g/mL at 25 °C(lit.) |
vapor density | 7.14 (vs air) |
vapor pressure | 175 mm Hg ( 20 °C) |
refractive index | 1.559 |
Fp | 1435°C |
storage temp. | Store at +5°C to +30°C. |
solubility | H2O: 1 M at 20 °C, clear, colorless |
form | random crystals |
color | White |
Specific Gravity | 2.75 |
PH | 5.0-8.8 (25℃, 50mg/mL in H2O) |
Water Solubility | 650 g/L (20 ºC) |
λmax | λ: 260 nm Amax: 0.01 |
Sensitive | Hygroscopic |
Stability: | Stable. Incompatible with strong oxidizing agents, strong acids, bromine trifluoride and bromine trichloride. |
Brand Name: | Zhishang Chemical |
Provide: | Potassium Bromide MSDS; Potassium Bromide COA |
What is Potassium Bromide?
Potassium bromide is a not natural material with a chemical formula of KBr and also a loved one molecular weight of 119, colorless crystal or white powder, with solid salty taste, turns yellow when revealed to light. Somewhat hygroscopic. 1g was dissolved in 1.5 ml of water as well as the aqueous option was neutral. The relative density was 2.75 (25 ° C). Melting point 730 ℃. Boiling point: 1435 ℃. Annoying. It is generally utilized for spooky evaluation, copper silver point analysis, polarographic evaluation of indium, cadmium and also arsenic, as well as designer.
Potassium bromide is a colorless cubic crystal. Odorless, salted and a little bitter. It is simple to turn yellow when exposed to light and also has slight hygroscopicity. Soluble in water (102G/ 100ml water, 100 ° C) and also glycerol, somewhat soluble in ethanol and ether. The liquid solution is neutral. Its bromine ion might be replaced by fluorine and chlorine. And reacts with sulfuric acid to create hydrogen bromide. It reacts with silver nitrate to develop yellow silver bromide precipitate.
This white crystal is made by the activity of bromine and also hot potassium hydroxide remedy. It is soluble in water, yet its solubility in alcohol is a lot reduced. In the paper unfavorable film process, the healthy protein on glass process as well as the damp collodion procedure, potassium bromide is integrated with iodide to be made use of as a second halide. When the silver bromide latex was invented, potassium bromide was the primary halide. It is likewise used in mix with mercury dichloride, copper sulfate or potassium ferricyanide in photo lightening agents and as a prevention in alkaline developers utilized for jelly plates and also creating documents.
Potassium Bromide Uses
- The photosensitive product market is utilized in the manufacture of photosensitive movie, designer, film thickener, toner and also shade image bleach.
- Clinically utilized as a nerve sedative (tribromide tablets). On top of that, it is likewise used for chemical evaluation reagents, the transmission of spectroscopic and infrared rays, the preparation of unique soaps, in addition to inscription, lithography and so forth.
- Copper and also silver were identified by area evaluation. Polarographic evaluation of indium, cadmium and also arsenic. programmer. Chemical analysis.
The 99.95% as well as 99.99% grades are used in molecular biology to eliminate peripheral membrane healthy proteins.
FT-IR quality for FT-IR spectrometers. - Bromide ions can boost the inhibitory procedure of the cortex, create a sedative impact, as well as bring back the equilibrium of excitation and restraint in the cerebral cortex to typical. Scientifically, it is mainly used for neurasthenia, nervous sleeping disorders, mental excitement, hysteria, and so on.
- Potassium bromide is used in veterinary medication to deal with epilepsy in pets, either as first-line treatment or in mix with phenobarbital, when phenobarbital alone does not adequately control seizures.
The Manager has Something to Say

This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.
Contact Us
- Email: sales002@sdzschem.com
- Phone: +86 176 5311 3209
- WhatsApp: +86 176 5311 3209
- WeChat: Zhishang17653113209
- Skype: +86 176 5311 3209
If you want to buy potassium bromide, pls contact us to get a free quote.
Application of Potassium Bromide
Potassium bromide can be used in the manufacture of photographic paper, board, pharmaceutical synthesis intermediates.
It solves the technical problem that the traditional method of Fourier transform infrared can not carry out infrared scanning on the single particle of diamond mineral smaller than 1mm. , place the sample to be tested in the hollow sample chamber of the potassium bromide base, and then place it under the infrared microscope, close the door of the infrared microscope, evacuate and fill with argon, and scan and analyze the sample to be tested. The concentration distribution of N element.
The potassium bromide base uses pure potassium bromide tablet as the base of diamond single mineral, which solves the problem of background interference when other substances fix extremely tiny minerals.
1) Grind the potassium bromide particles and dry them in a vacuum for later use;
2) Put PBA in a volumetric flask, and use good solvent CHCl3 to make up the volume to completely dissolve PBA;
3) adding KBr to the prepared PBA solution to obtain a KBr blend solution;
4) Add ionized water to the obtained PBA solutions with different contents of KBr, and ultrasonically sonicate the volumetric flask at room temperature to prepare PBA/KBr suspension casting solution;
5) The obtained PBA film casting solution is subjected to spin coating method to obtain a composite film, and the solvent CHCl3 is completely volatilized at room temperature, and then vacuum-dried for 6 hours;
6) Incubate the prepared composite film at a constant temperature to eliminate thermal history;
7) Incubate the composite film that has eliminated the thermal history at a constant temperature to make it completely recrystallized;
8) Cool the fully crystallized product in step 3) to room temperature and wait for detection; the process is simple and scientific, the cost is low, the process is controllable, and it is expected to be industrialized production, with great potential application prospects and economic benefits.
- Ethanol, water and o-nitrobenzaldehyde are stirred and mixed, and the temperature is raised to the point where the solid o-nitrobenzaldehyde is completely dissolved.
- Add reduced iron powder, add 3-5 drops of hydrochloric acid dropwise, fully stir and continue to heat up until the reaction system reaches the reflux temperature, and keep stirring for reaction.
- The reaction solution is suction filtered, and the mixed solution of bromine, potassium bromide and water is stirred dropwise in the gained filtrate, and after the dropwise addition is completed, the temperature is maintained and the reaction is stirred.
- Excessive saturated sodium bicarbonate solution was added to the reaction solution, stirred well, accompanied by solid precipitation, and filtered to obtain 2amino-3,5-dibromobenzaldehyde.
The reaction of the invention organically combines the two-step reactions of reduction and bromination, omits the process of obtaining the intermediate product o-aminobenzaldehyde, simplifies the process, and reduces the workload.
Preparation of Potassium Bromide
- Electrolysis. The potassium bromide synthesized by bromine and potassium hydroxide was dissolved in distilled water to form an electrolyte, and the first batch of crude products was obtained after electrolysis for 24 hours. After that, take the crude product every 12 hours. The crude product was washed with water to remove potassium bromide and then hydrolyzed by distillation. Adjust the pH value to 8 with potassium hydroxide, and filter after standing for 0.5h.
- Chlorine oxidation. After the lime milk reacts with bromine, chlorine gas is introduced for chlorine oxidation reaction, and the reaction is terminated when the pH value reaches 6-7. After slag removal, the filtrate is evaporated. Add barium chloride solution to react to form barium bromate precipitate, add water to suspend and filter the precipitate to maintain a certain temperature, add potassium carbonate to carry out the double decomposition reaction, and use a small amount of distilled water to wash, filter, evaporate, cool, crystallize, separate, dry and crush the crude potassium bromate for many times to obtain edible potassium bromate product.
- Bromine potassium hydroxide method. Industrial bromine and potassium hydroxide are used as raw materials, potassium hydroxide is dissolved with 1.4 times the mass of water to make a solution, and bromine is added under constant stirring. After bromine is added to a certain amount, white crystals are precipitated out to obtain crude potassium bromate.
- Continue adding bromine until the liquid turns pink. While adding bromine, keep adding cold water to the solution to prevent bromine loss due to high temperature volatilization. Recrystallization, filtration and drying are repeated, and then dissolved with deionized water. During synthesis, a small amount of potassium hydroxide is added to remove excess bromine and recrystallized once. Finally, the crystal is taken out and dried to obtain the finished product.
Reference
- Potassium bromide – WikiPedia
- Potassium bromide – PubChem
- The preparation method of potassium bromide – ChemicalBook
Potassium Bromide Supplier and Manufacturer
As a potassium bromide supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best potassium bromide raw materials to customers all over the world.
Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.
If you have a demand for potassium bromide and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.
Pre-Sales Service
* Prompt reply and 24 hours online, professional team to provide the best price and high-quality product.
* Sample testing support.
* Every batch of products will be tested to ensure its quality.
* The packing also can be according to the customers` requirement.
* Any inquiries will be replied to within 24 hours.
* We provide a Commerical Invoices, Packing Lists, Bills of loading, COA, Health certificates, and Origin certificates. If your markets have any special requirements, let us know.
After-Sales Service
* The fact of logistics information monitoring.
* Any questions about the product can be consulted at any time.
* Product has any problem can return.
Do you accept sample order?
We will make samples before mass production, and after the sample is approved, we’ll begin mass production. Doing 100% inspection during production, then doing random inspection before packing.
What’s your MOQ?
Our MOQ is 1kg. But usually we accept less quantities, such as 100g on the condition that the sample charge is 100% paid.
Is there a discount?
The different quantity has different discount.
HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests, we will manufacture the products according to your requests.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.
1. ≤50kg, Express delivery recommended, usually called DDU service;
2. ≤500kg, Air shipping recommended, usually called FOB, CFR, or CIF service;
3. >500kg, sea shipping recommended, usually called FOB, CFR, or CIF service;
4. For high-value products, please select air shipping and express delivery for safe.
Quality Control of Potassium Bromide

