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Hydrobromic Acid Pharma Raw Material Colorless Liquid For Chemical Reagent 10035
- Hongkong Saichuang
Chemical reagent
- Hubei China
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- 100grams
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- 25kg/drum
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Hongkong Pengfei Pharmaceutical Technology Co.,LtdChina
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Hongkong Pengfei Pharmaceutical Technology Co.,Ltd2020-07-10 09:46:19
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Product Details
| Product Name: | Hydrobromic acid | Other names: | Hydronium bromide | Number: | 10035-10-6 |
| ChEBI: | CHEBI | ChemSpider: | 255 | EC Number: | 233-113-0 |
| PubChem: | 260 | RTECS number: | MW3850000 | UNII: | 3IY7CNP8XJ |
| Chemical formula: | HBr | Molar mass: | 80.91 | Appearance: | Colorless liquid |
| Odor: | acrid | Density: | 1.49 g/cm3 (48% w/w aq.) | Melting point: | −11 °C (12 °F |
| Boiling point: | 122 °C (252 °F | Solubility in water: | 221 g/100 mL (0 °C) 204 g/100 mL (15 °C) 130 g/100 mL (100 °C) | Acidity (pKa): | −9 |
| Viscosity: | 0.84 cP (-75 °C) | Specific heat capacity (C): | 29.1 J/K mol | Std molar entropy (So298): | 198.7 J/K mol |
| Std enthalpy of formation (ΔfHo298): | -36.3 kJ/mol |
Product Description
Hydrobromic acid raw material colorless liquid for chemical reagent manufacture no 10035-10-6
Description:
Hydrobromic acid is a strong acid formed by dissolving the diatomic molecule hydrogen bromide (HBr) in water.
"Constant boiling" hydrobromic acid is an aqueous solution that distills at 124.3 °C and contains 47.6% HBr by weight, which is 8.89 mol/L. Hydrobromic acid has a pKa of −9, making it a stronger acid than hydrochloric acid, but not as strong as hydroiodic acid.
Hydrobromic acid is one of the strongest mineral acids known.
Categories:
Inorganic Chemical ; Essential Organics; Oil industry ; Strongest mineral acid ;
Specifications:
| Appearance | Colorless to light yellow transparent liquid |
| Main Content % | 48.0 Min. |
| Chloride (ppm) | 100 Max. |
| Sulphate (ppm) | 100 Max. |
| Bromate | No Reaction |
| Lodide (ppm) | 50 Max. |
| Iron (ppm) | 5 Max. |
| Heavy Metal(Pb) (ppm) | 5 Max. |
Applications:
Mainly used to produce every kind bromides, especially the bromides of zinc, calcium, and sodium.
It is a also can be used as reagent for generating organobromine compounds. Certain ethers are cleaved with HBr.
It also catalyzes alkylation reactions and the extraction of certain ores. Industrially significant organic compounds prepared from hydrobromic acid include allyl bromide, tetrabromobis(phenol), and bromoacetic acid.
In oil industry, it is used as alkylation catalyst.
It is useful in medicine, dye and spice industry.
In medicine usually used as sedatives and anesthetics etc.
Uses
Hydrobromic acid is mainly used for the production of inorganic bromides, especially the bromides of zinc, calcium, and sodium. It is a useful reagent for generating organobromine compounds. Certain ethers are cleaved with HBr. It also catalyzes alkylation reactions and the extraction of certain ores. Industrially significant organic compounds prepared from hydrobromic acid include allyl bromide, tetrabromobis(phenol), and bromoacetic acid.
Synthesis
Hydrobromic acid can be prepared in the laboratory via the reaction of Br2, SO2, and water.
Br2 + SO2 + 2 H2O → H2SO4 + 2 HBr
More typically laboratory preparations involve the production of anhydrous HBr, which is then dissolved in water.
Hydrobromic acid has commonly been prepared industrially by reacting bromine with either sulfur orphosphorus and water. However, it can also be produced electrolytically. It can also be prepared by treating bromides with non-oxidising acids like phosphoric or acetic acids.
Alternatively the acid can be prepared with dilute (5.8M) sulfuric acid and potassium bromide:
H2SO4 + KBr → KHSO4 + HBr
Using more concentrated sulfuric acid or allowing the reaction solution to exceed 75 °C further oxidizesHBr to bromine gas. The acid is further purified by filtering out the KHSO4 and by distilling off the water until the solution reaches an azeotrope (≈ 126 °C at 760 torr). The yield is approximately 85%.
Hydrobromic acid is available commercially in various concentrations and purities.
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