| Quantity: | |
|---|---|
Sodium Bromide (Industrial Grade) is a high-purity inorganic bromide salt, valued for its high bromine content (≈77.7%), excellent solubility in water, and versatility as an industrial raw material. Unlike technical-grade sodium bromide, the industrial grade meets strict purity standards (≥99.5%) with minimal impurities (e.g., chloride <0.3%, sulfate <0.05%), making it suitable for flame retardant synthesis, oil & gas drilling, and chemical processing. It is available in granular or crystalline form, ensuring easy handling and dissolution. With high chemical stability (decomposition temperature >800℃) and compliance with industrial safety standards, it serves as a critical intermediate in brominated flame retardants.
Industrial-grade Sodium Bromide boasts a purity of ≥99.5% (by titration), with impurities like chloride (<0.3%), sulfate (<0.05%), and heavy metals (<10 ppm) strictly controlled. This high purity ensures consistent performance in flame retardant synthesis—preventing catalyst poisoning or product quality fluctuations. For example, when used as a raw material for Decabromodiphenyl Ethane, it reduces bromine loss by 5% compared to technical-grade sodium bromide, lowering production costs. Low heavy metal content also makes it suitable for medical intermediate applications (e.g., synthesizing brominated pharmaceuticals).
With a water solubility of ≈90 g/100 mL at 20℃ and ≈121 g/100 mL at 100℃, Sodium Bromide (Industrial Grade) dissolves rapidly in water without agglomeration. Its granular form (particle size 1–3 mm) increases surface area, ensuring complete dissolution in 5–10 minutes，where uniform brine density is essential. Unlike potassium bromide (solubility ≈67 g/100 mL at 20℃), its higher solubility allows for denser brines (up to 1.35 g/cm³), suitable for high-pressure oil wells.
Sodium Bromide (Industrial Grade) exhibits exceptional chemical stability—unreactive with most acids (except concentrated sulfuric acid) and bases at room temperature. It decomposes only above 800℃, making it suitable for high-temperature processing (e.g., flame retardant calcination). During storage, it absorbs minimal moisture (<0.5% at 23℃/60% RH), preventing caking and ensuring long shelf life (up to 2 years in sealed packaging). This stability reduces waste and ensures consistent batch quality for large-scale industrial use.
Compared to other bromide salts (e.g., calcium bromide, ammonium bromide), Sodium Bromide (Industrial Grade) offers a lower cost per unit bromine—making it ideal for high-volume applications like flame retardant synthesis and oilfield operations. Its versatility spans multiple industries: as a bromine source in flame retardants, a density adjuster in drilling fluids, a brominating agent in pharmaceuticals, and a reducing agent in textile dyeing. This multi-industry applicability reduces inventory costs for manufacturers handling diverse products.
| Item | Specification |
| CAS Number | 7647-15-6 |
| Molecular Formula | NaBr |
| Molecular Weight | 102.89 g/mol |
| Bromine Content | ≈77.7% (by weight, theoretical maximum) |
| Purity (Industrial Grade) | ≥99.5% (by argentometric titration) |
| Appearance | White granular or crystalline solid (free-flowing, no caking) |
| Particle Size | 1–3 mm (granular) or 0.1–0.5 mm (crystalline) |
| Density (Solid) | ≈3.21 g/cm³ (20℃) |
| Water Solubility | ≈90 g/100 mL (20℃), ≈121 g/100 mL (100℃) |
| Decomposition Temperature | >800℃ |
| Moisture Content | <0.5% (23℃/60% RH, per Karl Fischer titration) |
| Impurity Limits | Chloride <0.3%, Sulfate <0.05%, Heavy Metals (Pb, Cd) <10 ppm |
| Industrial Standards | Meets GB/T 1265-2003 (China) and ASTM D512-18 (U.S.) for industrial bromides |
| Safety | Non-toxic (LD50 ≈3,000 mg/kg in oral rat tests); classified as GHS Category 4 (low hazard) |
| Packaging | 25 kg polyethylene bags or 1,000 kg FIBC bulk bags (moisture-proof) |
Sodium Bromide (Industrial Grade) is a primary bromine source for synthesizing brominated flame retardants (BFRs) like Decabromodiphenyl Ethane, Ethylenebistetrabromophthalimide, and Tetrabromophthalic Anhydride. In BFR production, it reacts with chlorine to generate elemental bromine, which is then incorporated into flame retardant molecules. Its ≥99.5% purity ensures high bromine conversion rates (>95%), reducing raw material waste. For example, a 10,000-ton/year Decabromodiphenyl Ethane plant uses 8,500 tons of this sodium bromide annually, achieving consistent product quality with bromine content ≈82%.
In oil & gas, it is used to prepare high-density brine density 1.10–1.35 g/cm³ for well completion and workover operations. The brine’s high density controls downhole pressure, preventing well blowouts and protecting reservoir formations. Its low impurity content avoids scaling in wellbore tubes (e.g., chloride <0.3% reduces calcium carbonate deposition). For high-pressure offshore wells (depth >5,000 meters), brines made with this sodium bromide maintain stability at temperatures up to 150℃, ensuring reliable well control.
It serves as a brominating agent in pharmaceutical synthesis, producing drugs like bromvalerylurea (sedative) and brompheniramine (antihistamine). Its high purity ensures no heavy metal contamination in pharmaceuticals, complying with FDA 21 CFR Part 211. In fine chemicals, it is used to synthesize alkyl bromides (e.g., ethyl bromide) and brominated dyes—critical for specialty chemical industries.
In textile dyeing, Sodium Bromide (Industrial Grade) acts as a reducing agent for indigo dyes, improving color fastness and reducing dye consumption by 10–15%. In water treatment, it is used to generate hypobromous acid (via reaction with chlorine) for disinfection—effective against bacteria, algae, and viruses in swimming pools and industrial cooling towers. Its low toxicity makes it safer than chlorine for potable water applications.
It has a purity of ≥99.5% with minimal impurities (chloride <0.3%, sulfate <0.05%).
It dissolves up to 90 g/100 mL at 20℃ and 121 g/100 mL at 100℃, dissolving rapidly.
It is a primary bromine source for synthesizing brominated flame retardants like Decabromodiphenyl Ethane.
Yes, it decomposes only above 800℃, ensuring stability in high-temperature processing.
