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Views: 0 Author: Y Publish Time: 2026-10-28 Origin: Site
Zinc bromide (ZnBr2) is an inorganic bromide salt, commonly used as a component in oil and gas well completion fluids and other specialized industrial applications. It is highly soluble in water and makes dense aqueous brines and is therefore useful in applications where fluid density, well pressure control and compatibility with other completion chemicals are required.
Whether you are looking for zinc bromide uses, zinc bromide solution comparison or zinc bromide supplier, this guide covers all aspects of the chemical properties, industrial application, product specification, handling requirements and purchasing considerations of zinc bromide.
Zinc bromide is an inorganic chemical compound consisting of zinc and bromide ions. Its chemical formula is ZnBr₂, and its CAS number is 7699-45-8.
Anhydrous zinc bromide is typically a white to off-white crystalline solid. It is highly hygroscopic i.e. it absorbs moisture readily from air. It is soluble in water to give a concentrated solution. This can be used to make dense, clear brines for specialized industrial operations.
Zinc bromide is of particular importance in the oil and gas industry where high-density solids-free completion fluids help control formation pressure and minimize the introduction of suspended solids into the well.
Property | Information |
Product name | Zinc Bromide |
Chemical formula | ZnBr₂ |
CAS number | 7699-45-8 |
Molecular weight | Approximately 225.20 g/mol |
Chemical category | Inorganic bromide salt |
Appearance | White crystalline solid; aqueous solutions are clear and may be colorless to pale amber |
Water solubility | Highly soluble |
Main industrial application | Oil and gas completion and workover fluids |
Actual product appearance, concentration, and physical properties depend on the product form, grade, and supplier specifications.
Understanding the properties of zinc bromide helps industrial users determine whether it is suitable for a particular process.
Zinc bromide will dissolve in water. Manufacturers can prepare concentrated aqueous solutions. This feature is of particular value in oilfield applications where high-density brines are needed without suspended solids.
Concentrated zinc bromide solutions can be used to obtain high densities and are suitable for demanding well completion and workover operations.
The required density depends on the well pressure, the formation, the operating temperature and the overall formulation of the fluid. Zinc bromide may be blended with calcium bromide or calcium chloride to achieve specific fluid properties.
Anhydrous zinc bromide readily absorbs moisture. Hence, proper packaging and controlled moisture storage are important to maintain the quality of the product especially in the case of solid material.
Zinc bromide ionizes in aqueous solution . The solution therefore conducts electricity . This feature is of interest in connection with some specialized electrochemical applications such as zinc-bromine battery systems.
Zinc bromide solutions can be corrosive and acidic under certain conditions. Before use, they must be checked for compatibility with metals, elastomers, additives and other process materials.
For oilfield applications, fluid formulation should be based on actual well conditions and laboratory compatibility testing, rather than on assumptions of universal compatibility.
The most established industrial application of zinc bromide is in the preparation of high density clear brines for oil and gas well completion and workover operations. It may also find use in specialized applications in energy storage and chemical processing depending on the required grade and formulation.
One of the main uses of zinc bromide is in high-density completion fluids.
Completion operations prepare a well for production after it has been drilled. In this phase the operators must control the pressure in an appropriate way and without damaging the productive formation unnecessarily.
Zinc bromide brines meet these requirements by providing a dense, clear fluid that can be formulated for specific well conditions.
Key benefits include:
High fluid density for well pressure management.
A solids-free fluid system when properly prepared and maintained.
Flexibility to blend with compatible bromide and chloride salts.
Formulation options for different density and crystallization requirements.
The final fluid should be formulated to achieve the target bottomhole pressure, temperature, formation chemistry and equipment limitations.
Workover operations involve servicing, repairing, or modifying an existing well.
In these operations, the workover fluid must provide enough hydrostatic pressure to help with well control and meet operational and formation protection requirements.
Zinc bromide solutions can be used for suitable workover fluid systems requiring high density. The selection of them is governed by the well pressure requirements, the compatibility of the materials, and the effect that the fluid may have on the producing formation.
Zinc bromide can be combined with other inorganic salts to create clear brines with specific performance characteristics.
For example, the density and crystallization properties can be modified by mixing zinc bromide with calcium bromide or calcium chloride.
This flexibility is key for oilfield service companies, which need to tailor fluid formulations to different wells, climates and operating temperatures.
The exact ratio of the blend must be determined by formulation calculations, crystallization test and compatibility evaluation.
Zinc-bromine battery technology is an energy-storage approach in which zinc and bromine participate in electrochemical reactions.
Suitable battery systems contain bromide chemistry in the form of electrolytes containing zinc bromide for energy storage and electrochemical operation. These systems are being developed and used for applications where rechargeable, stationary energy storage is required.
However, battery-grade zinc bromide may require stricter purity and impurity limits than conventional industrial material. Oilfield-grade zinc bromide is not to be assumed suitable for use in batteries without specific qualification.
Zinc bromide may also be used in selected laboratory and specialty chemical processes where its ionic or Lewis-acid properties are useful.
These are process-specific applications. Users should check the suitability of the material, purity specifications, compatibility with reactions and legal aspects before deciding to use zinc bromide for chemical synthesis or other specialized applications.
To understand the value of zinc bromide, consider a typical well-completion scenario.
An oil or gas well requires a fluid dense enough to help balance the pressure of the surrounding formation. If the selected fluid is too light, pressure control may be inadequate. If the fluid contains unsuitable suspended solids, those solids may impair the permeability of the producing formation.
A properly formulated zinc bromide clear brine can help address these challenges.
The typical workflow includes:
Step 1: Evaluate well conditions.
Engineers determine the required fluid density, bottomhole pressure, operating temperature, and formation characteristics.
Step 2: Select the appropriate brine system.
Zinc bromide may be used alone or blended with compatible salts, depending on the target density and crystallization temperature.
Step 3: Verify fluid performance.
The formulation is tested for density, crystallization behavior, chemical compatibility, and relevant impurity limits.
Step 4: Apply the fluid during completion or workover.
The prepared fluid is used according to the approved well program and site-specific safety procedures.
Step 5: Monitor and manage the fluid.
Fluid properties are checked during use. Where technically and economically appropriate, recovered brine may be evaluated for treatment and reuse.
This workflow illustrates why oilfield customers should evaluate zinc bromide not only by price per ton but also by concentration, density, impurity profile, crystallization performance, and compatibility with the complete fluid system.
Zinc bromide is mainly recognized for its use in high-density clear brines for oil and gas well completion and workover operations. It is also relevant to certain zinc-bromine energy-storage systems and specialized chemical applications.
Yes. Zinc bromide is very soluble in water and concentrated solutions in water can be made for industrial applications.
Zinc bromide solution is an aqueous mixture containing dissolved ZnBr₂. Commercial solutions are supplied at specified concentrations and may be used to formulate dense oilfield brines or for other suitable industrial purposes.
Commercial concentrations vary by supplier and application. Other grades and formulations. Concentrated oilfield solutions may be offered around 70% ZnBr2 . Always check the exact concentration on the spec of the product and COA.
Zinc bromide solutions can be corrosive, especially under acidic conditions or at high concentrations. Before use, the compatibility of materials and the necessary protective measures should be considered.
Store solid zinc bromide tightly sealed and dry. Store liquid zinc bromide in appropriate closed containers under recommended conditions from the supplier.
Industrial buyers are advised to request a quotation specifying the concentration, application, estimated quantity, packaging preference, destination country and impurity limits required. The supplier can choose an appropriate grade and provide the appropriate documentation.
Zinc bromide is a significant inorganic bromide used in high density oilfield completion and workover fluids. It has high water solubility and ability to form dense clear brines which makes it useful for applications requiring carefully controlled fluid density and composition.
When selecting a zinc bromide product, the concentration, density, crystallization characteristics, impurities, compatibility, safety and delivery needs should be considered.
For industrial buyers, the best purchasing strategy is to first establish the technical specification, check the supplier's paperwork and verify that the grade supplied is suitable for the intended use.
Looking for a zinc bromide supplier? Contact a qualified industrial chemical supplier with your required grade, concentration, quantity, and delivery destination to request a product specification, COA, SDS, and quotation.
