Calcium Bromide (CAS 7789‑41‑5) – Complete Technical Data Sheet for Powder & Solution Grade
Document Revision: 2026 | Applicable Product: Calcium Bromide Powder, Calcium Bromide Solution | Core Industry Use: Oilfield Drilling Fluid, Completion Brine
1. Product Identification – Calcium Bromide (CAS 7789‑41‑5)
This section covers the core chemical identification parameters of calcium bromide (CAS 7789‑41‑5), covering both industrial calcium bromide powder and liquid calcium bromide solution specifications for oilfield and chemical applications.
| Identification Item | Technical Details |
|---|---|
| Chemical Name | Calcium Bromide / Calcium Dibromide |
| CAS Number | CAS 7789‑41‑5 |
| EC / EINECS No. | 232‑164‑6 |
| Molecular Formula | CaBr₂ |
| Molecular Weight | 199.89 g/mol |
| Common Synonyms | Industrial calcium bromide, oilfield grade calcium bromide, hydrobromic acid calcium salt |
| HS Code | 2827590000 |
2. Physical & Chemical Properties of CAS 7789‑41‑5 (Powder & Solution)
Calcium bromide (CAS 7789‑41‑5) is a highly deliquescent inorganic salt, supplied in two mainstream commercial forms: solid calcium bromide powder and liquid calcium bromide solution. Its superior solubility and high-density characteristics make it the preferred material for oilfield drilling fluid and completion brine systems.
2.1 Properties of Calcium Bromide Powder (Anhydrous CAS 7789‑41‑5)
| Parameter | Technical Value |
|---|---|
| Appearance | White to off-white crystalline granular powder |
| Odor | Odorless with slight saline taste |
| Density | 3.353 g/cm³ @25°C |
| Melting Point | 730°C |
| Boiling Point | 806–812°C (partial decomposition) |
| Water Solubility | 142 g/100mL @20°C, extremely soluble for brine preparation |
| Core Feature | Strongly deliquescent, must be kept sealed for oilfield raw material storage |
2.2 Properties of Industrial Calcium Bromide Solution (CAS 7789‑41‑5 Liquid)
High-concentration calcium bromide solution (52–53 wt%) is the most widely used liquid formulation for on-site oilfield drilling fluid and completion brine operations, eliminating the dilution process of solid powder and improving construction efficiency.
| Liquid Solution Parameter | Standard Specification |
|---|---|
| Appearance | Clear, colorless transparent liquid |
| Specific Gravity | 1.70–1.73 g/mL @20°C |
| Fluid Density | 14.2–14.4 lb/gal (oilfield standard unit) |
| Freezing Point | -18°C (adaptable to low-temperature well sites) |
| pH Value (10% Solution) | 6.0–8.5 (neutral, non-corrosive to wellbore equipment) |
3. Quality Specifications of CAS 7789‑41‑5 (Powder & Solution for Oilfield)
3.1 Calcium Bromide Powder Industrial Grade Standard
High-purity calcium bromide powder (CAS 7789‑41‑5) is the base raw material for preparing customized completion brine and concentrated oilfield drilling fluid, with strict impurity control to avoid wellbore blockage and corrosion.
| Quality Index | Standard Limit |
|---|---|
| CaBr₂ Purity | ≥98.0% Min |
| Chloride Impurity | ≤0.50% Max |
| Sulfate Impurity | ≤0.05% Max |
| Heavy Metals (Pb) | ≤10 ppm Max |
| Moisture Content | ≤1.0% Max |
3.2 Calcium Bromide Solution Oilfield Grade Standard
The standardized calcium bromide solution is professionally formulated for offshore and onshore well projects, serving as a high-density completion brine and stable oilfield drilling fluid to meet well pressure control requirements.
4. Core Applications of CAS 7789‑41‑5: Oilfield Drilling Fluid & Completion Brine
The primary commercial value of calcium bromide (CAS 7789‑41‑5) lies in the oil and gas industry. Both calcium bromide powder and calcium bromide solution are core raw materials for preparing high-performance oilfield drilling fluid and solids-free completion brine, with wide coverage in well drilling, completion, workover and packer operations.
- Oilfield Well Control: High-density completion brine prepared from CAS 7789‑41‑5 calcium bromide effectively balances formation pressure, prevents well blowout and collapse, and is suitable for deep well and high-pressure well construction.
- Drilling Fluid Preparation: Dilutable calcium bromide solution and configurable calcium bromide powderare used to adjust the density of oilfield drilling fluid, ensuring fluid stability and no solid precipitation during operation.
- Chemical Intermediate: Industrial calcium bromide (CAS 7789‑41‑5) is a raw material for manufacturing other bromide salts, pharmaceutical intermediates and flame retardants.
- Environmental Protection Field: Used as a flue gas mercury removal additive for coal-fired power plants to reduce heavy metal emissions.
5. Stability & Reactivity of Calcium Bromide (CAS 7789‑41‑5)
Both calcium bromide powder and calcium bromide solution of CAS 7789‑41‑5 have stable chemical properties under normal oilfield construction and storage conditions. The powder is strongly deliquescent, while the solution maintains stable density and alkalinity for long-term use as oilfield drilling fluid and completion brine.
- Storage Stability: Stable in sealed, dry and ventilated environment; avoid contact with humid air to prevent powder agglomeration and solution concentration deviation.
- Incompatible Substances: Keep away from strong acids and strong oxidants to prevent chemical reactions that produce toxic bromine fumes.
- Thermal Stability: Slow decomposition at ultra-high temperature, stable at conventional oilfield construction temperatures.
6. GHS Safety & Handling Guidelines for CAS 7789‑41‑5
Safe operation specifications apply to both calcium bromide powder and calcium bromide solution during oilfield drilling fluid and completion brine preparation and construction.
| Hazard Classification | Safety Statement |
|---|---|
| GHS Hazard Codes | H315 (Skin Irritation), H318 (Serious Eye Damage) |
| Precautionary Statements | P264, P280, P302+P352, P305+P351+P338 |
| Water Hazard Class | WGK 2 (Moderate water pollution risk) |
7. Storage & Packaging for Oilfield-Grade CAS 7789‑41‑5
Targeted storage and packaging solutions for calcium bromide powder and calcium bromide solution ensure the stability of completion brine and oilfield drilling fluid raw materials during transportation and storage.
- Calcium Bromide Powder Packaging: 25kg/1000kg PE-lined woven bags or sealed drums, moisture-proof and dust-proof.
- Calcium Bromide Solution Packaging: 1000L IBC totes and HDPE drums, leak-proof for liquid brine transportation.
- Storage Conditions: Cool, dry, ventilated warehouse; isolate from acids and oxidants; sealed storage to guarantee 24-month shelf life.
8. Disposal & Environmental Requirements
Waste calcium bromide solution and residual calcium bromide powder (CAS 7789‑41‑5) generated fromoilfield drilling fluid and completion brine construction must be disposed of in accordance with local environmental regulations. Concentrated waste liquid needs neutralization treatment before discharge to avoid water pollution.
9. Product Summary
Calcium bromide (CAS 7789‑41‑5) is a high-value inorganic bromide product, mainly supplied as deliquescent calcium bromide powder and high-density calcium bromide solution. As the core raw material of industrial completion brine and professional oilfield drilling fluid, it is widely used in global oil and gas well construction, with stable chemical performance, controllable quality and high construction adaptability.
