Potassium bromide
- Createtime： 2026-04-14
- Updatetime： 2026-09-30
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
crystal
|
| Molecular Weight |
119.00
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
White crystalline powder or colorless cubic crystal
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Potassium Bromide
1. Basic Product Information
Product Name: Potassium Bromide
CAS Number: 7758-02-3
Molecular Formula: KBr
Molecular Weight: 119.00
Synonyms: Bromide salt of potassium, Kaliumbromid
Product Category: Basic inorganic chemical, analytical reagent, photographic chemical, pharmaceutical excipient, water treatment additive
2. Physical and Chemical Properties
Physical Indicators
- Appearance: White crystalline powder or colorless cubic crystal
- Odor: Odorless, slightly salty bitter taste
- Solubility: Freely soluble in water; soluble in glycerol; slightly soluble in ethanol; insoluble in acetone, ether and chloroform
- Melting Point: 734 °C
- Boiling Point: 1435 °C
- Density (20 °C): 2.75 g/cm3
- Hygroscopicity: Slightly hygroscopic under high humidity conditions
- Aqueous Stability: Neutral aqueous solution, stable at room temperature
Chemical Characteristics
- Molecular Structure: Ionic inorganic salt composed of potassium cation and bromide anion
- Core Chemical Reactivity: Can react with silver ions to form insoluble silver bromide precipitate; bromide ion can be oxidized to elemental bromine by strong oxidants
- Photostability: Stable under normal light; long-term strong UV irradiation slowly oxidizes bromide to Br?, turning solution yellow
- Thermal Stability: High thermal stability, no decomposition below melting point
- Chemical Compatibility: Compatible with neutral inorganic salts; incompatible with strong oxidants, concentrated sulfuric acid and heavy metal silver salts
3. Main Application Fields
- Core Application: Infrared Spectroscopy Analytical Reagent
Main raw material for IR sample tablet pressing; widely used in laboratory FTIR spectroscopy analysis - Photographic & Printing Chemicals
Raw material for silver bromide photosensitive emulsion in traditional photographic films, X-ray medical films - Pharmaceutical Industry Excipient & Raw Material
Raw material for sedative and antiepileptic veterinary preparations; used as bromide ion source in pharmaceutical synthesis - Oil & Drilling Additive, Water Treatment
Used as bromide biocide precursor for industrial circulating water disinfection; additive in oil well drilling fluid - Chemical Synthesis Raw Material
Source of bromide ion for organic bromination substitution reactions
4. Platform Category & Product Group Selection Guide
1) Domestic B2B Platform Category
Recommended Path: Basic Inorganic Chemicals / Bromides
Reason: It is a typical inorganic bromide salt, belongs to basic inorganic chemical category with high matching weight.
2) English Product Group Dropdown Options
Recommended Selection: Basic Inorganic Chemicals
Do not select Pharmaceutical Chemicals or Basic Organic Chemicals; it is inorganic salt raw material.
3. Standard Foreign Trade Packaging Specification
1kg sealed plastic bottle for lab reagent samples; 25kg woven bag lined with PE inner bag for industrial bulk orders; customized packaging available
5. Quality Specification Table
| Test Item | Standard Requirement |
| CAS Number | 7758-02-3 |
| Molecular Formula | KBr |
| Appearance | Uniform white crystal without yellow discoloration |
| Assay (KBr) | Reagent Grade ≥99.5%, Industrial Grade ≥99.0% |
| Water Content | ≤0.30% |
| Chloride (Cl?) | ≤0.10% |
| Sulfate (SO?2?) | ≤0.01% |
| Heavy Metals (Pb) | ≤10 ppm |
| Standard Storage Package | Light-proof sealed plastic container, 25kg PE lined woven bag |
