SYNTECH

Certificate Of Analysis

Product: ZINC BROMIDE 98%                                                                                     

QTY: 50MT

Batch No.: SSIC-ZB230725

Test Item	Specification	Test Results
Appearance	White crystal	White crystal
ZnBr2	≧98.5%	99.4%
Moisture	≦1.0%	0.12%
Chloride(as CL)	≦1.0%	0.18%
pH (5%)	4.0-6.0	4.9
Test Result	Qualified

Issued by: SHANDONG SYNTECH INDUSTRIES CO., LTD.

Issued date:July 25^th ,2023

Product Data Sheet of

Zinc Bromide 98.5%

CAS NO.:7699-45-8

Item	Specification
Molecular formula	ZnBr2
Item	Powder
Content  %≥	98.5
Chloride  %≤	1.0
Moisture  %≤	1.0
PH	4.0-6.0
Packing	25kg PP bag or 25kg fibre drum
Usage	Used as completion fluid, mounting fluid in oil drilling,as the important raw material in medical field.

Basic Information

• Chemical Formula: Br₂Zn/ZnBr₂
• Molecular Weight: 225.19 g/mol
• CAS Number: 7699-45-8
• Appearance: White to pale cream crystalline powder or beads, highly hygroscopic (absorbs moisture from air).
• Density: 4.20–4.22 g/cm³ (at 20°C).
• Melting Point: 394°C.
• Boiling Point: 650–697°C.

---

Chemical Properties

• Solubility:
  • Highly soluble in water (447 g/100 mL at 20°C).
  • Soluble in ethanol, ether, acetone, and tetrahydrofuran.
• pH: ~4 (saturated aqueous solution).
• Refractive Index: 1.5452 (at 20°C).

---

Preparation Methods

1. Direct Reaction: Zinc metal reacts with pure bromine in a CO₂ atmosphere, followed by distillation.
2. Alternative Method: Zinc oxide reacts with hydrobromic acid (HBr).

---

Applications

• Chemical Synthesis: Used as a catalyst in organic reactions, such as β-hydroxy ketone synthesis and oxidative bromination of alkenes/alkynes.
• Industrial Uses:
  • Synthetic fiber treatment (e.g., rayon).
  • Photography (emulsion preparation) and pharmaceuticals.
  • Oilfield applications (completion/cementing fluids).
• Batteries: Anode material in zinc batteries.

---

Safety and Handling

• Hazards:
  • Corrosive (causes skin/eye burns).
  • Toxic to aquatic life (WGK Germany: 3).
• Protective Measures: Use gloves, goggles, and ventilation. Store in sealed, moisture-proof containers.
• First Aid: Rinse with water if exposed; seek medical help for severe contact.

---

Regulatory Information

• Transport: Classified as UN 3260 (Corrosive, Packing Group II/III).
• Regulatory Codes:
  • RTECS: ZH1150000
  • EINECS: 231-718-4.

---

Additional Notes

• Stability: Forms explosive mixtures with alkali metals (e.g., sodium, potassium).
• Environmental Impact: Avoid release into water systems due to high aquatic toxicity.

For purchasing, it is available from suppliers like TCI (>98% purity) or Sigma-Aldrich (anhydrous grade)