Anhydrous Lithium bromide
Lithium bromide
CAS: 7550-35-8
Molecular Formula: BrLi
Anhydrous Lithium bromide - Names and Identifiers
| Name | Lithium bromide |
| Synonyms | Lithiumbromide lithium halide LITHIUM HALIDE Lithium bromide LITHIUM BROMIDE REAGENT Lithium bromide anhydrous Anhydrous Lithium bromide Lithium bromide, 0.05M sol.in trifluoroethanol, filt.over 0.45 micron, pure |
| CAS | 7550-35-8 |
| EINECS | 231-439-8 |
| InChI | InChI=1/BrH.Li/h1H;/q;+1/p-1 |
Anhydrous Lithium bromide - Physico-chemical Properties
| Molecular Formula | BrLi |
| Molar Mass | 86.85 |
| Density | 1.57g/mLat 25°C |
| Melting Point | 550 °C (lit.) |
| Boling Point | 1265 °C |
| Flash Point | 1265°C |
| Water Solubility | 61 g/100 mL (25 º C) |
| Solubility | Methanol (Very Slightly, Heated), Water (Slightly) |
| Appearance | powder |
| Specific Gravity | 3.464 |
| Color | White |
| Merck | 14,5526 |
| pKa | 2.64[at 20 ℃] |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable. Anhydrous form is extremely hygroscopic. |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | White cubic crystalline or granular powder. melting point 550 ℃ boiling point 1265 ℃ relative density 3.464(25 ℃) soluble in water, solubility of 254g/100ml water (90 ° C); Soluble in ethanol and ether; Slightly soluble in pyridine; Soluble in methanol, acetone, ethylene glycol and other organic solvents. |
| Use | Used as water vapor absorbent, air temperature regulator, absorbent refrigerant, hydrogen chloride remover, sedative and used in photography, battery, etc |
Anhydrous Lithium bromide - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R32 - Contact with acids liberates very toxic gas R40 - Limited evidence of a carcinogenic effect R43 - May cause sensitization by skin contact R36/37 - Irritating to eyes and respiratory system. R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes and skin. |
| Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S60 - This material and its container must be disposed of as hazardous waste. S24/25 - Avoid contact with skin and eyes. S36/37 - Wear suitable protective clothing and gloves. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| WGK Germany | 2 |
| RTECS | OJ5755000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28275900 |
Anhydrous Lithium bromide - Upstream Downstream Industry
| Raw Materials | Hydrobromic acid Lithium hydroxide Lithium carbonate Bromine |
| Downstream Products | Sodium bromide |
Anhydrous Lithium bromide - Reference Information
Open Data Unverified Data
| LogP | -0.37 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | lithium bromide is a colorless, granular, crystalline, stable, in the atmosphere will not be decomposed volatile and deterioration, non-toxic (sedative drama), no irritation to the skin. It is easily deliquescent and slightly bitter. The melting point is 547 ℃, the boiling point is 1265 ℃, the relative density is 3.46425, and the refractive index is 1.784. Soluble in methanol, ethanol, pentanol, glycerol, ethylene glycol, acetone, ethyl ether, many organic acids, esters and other organic solvents, insoluble in liquid bromine, can not form polybromide. It has strong water absorption and is easily soluble in water, and can form a series of hydrates: LiBr · H2O, LiBr · 2H2O, LiBr · 3H2O. At room temperature for the dihydrate, white crystals, 44 deg C to lose 1 molecule of crystal water, higher than 160 deg C into anhydrous. Its aqueous solution is neutral or slightly alkaline. It is extremely corrosive to common metals. The main measures for corrosion prevention are, first, to maintain a high degree of vacuum to isolate oxygen, and, second, to add a corrosion inhibitor so that the temperature of the solution does not exceed 120 °c. Hot concentrated solutions can dissolve cellulose. In the air, the strong heat, significant decomposition, precipitation of bromine at the same time to generate a small amount of lithium carbonate and lithium oxide and alkaline. Strong corrosion of glass, porcelain and platinum when melted. The reaction with gaseous ammonia produces LiBr. Nnh3. Preparation Method: prepared by direct combination of lithium and bromine, and industrially prepared by dissolving lithium carbonate or lithium hydroxide monohydrate in newly prepared hydrobromic acid. Purposes: more than 50% of the lithium bromide solution for air-conditioning equipment as water-absorbing agent, low-temperature heat exchange medium, but also for dry acid gas, oil dehydration, but also a small amount of used in the pharmaceutical industry. |
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 143g/0 ℃;147g/10 ℃;160g/20 ℃;183g/30 ℃;211g/40 ℃; 223G/60 ℃; 240g/80 ℃;266g/100 ℃ |
| Use | 54% ~ 55% lithium bromide solution as absorption refrigerant for large-scale refrigeration system used in pharmaceutical industry, photo Industry used as water vapor absorbent, air temperature regulator, absorption refrigerant, hydrogen chloride remover, sedative and used in photography, is an efficient water vapor absorber and air humidity regulator. Lithium bromide at a concentration of 54% to 55% may be used as the absorption refrigerant. Used in organic chemistry as hydrogen chloride removal agent, organic fibers (such as wool, hair, etc.). It is used medically as a hypnotic and sedative. In addition, it is also used for electrolytes and chemical reagents in the photosensitive industry, analytical chemistry, and some high-energy batteries. Anhydrous Lithium bromide is mainly used in water vapor absorbent and air humidity regulator, can be used as absorption refrigerant, but also used in organic chemistry, pharmaceutical industry, photosensitive industry and other industries used in the pharmaceutical industry, |
| production method | neutralization method lithium hydroxide and hydrobromic acid are neutralized, and the reaction solution is decolorized, filtered, the filtrate is concentrated, filtered, concentration, crystallization, separation, preparation of lithium bromide granular powder product. The LiOH HBr → LiBr H2O iron bromide method generates iron bromide by the interaction of iron filings and bromine, and then lithium carbonate and iron bromide are used to prepare lithium bromide. The process of this method is more complicated, and it is easy to cause the loss of lithium bromide and reduce the yield. |
Last Update：2024-04-09 19:43:38
Anhydrous Lithium bromide - Nature
Open Data Verified Data
White cubic crystal or granular powder, colorless transparent or light yellow liquid, relative density 3. 464(25 ° C), melting point 547 ° C, boiling point 1265 ° C, easy to deliquescence, soluble in water, solubility 254g/lOOmL water (90 ° C), soluble in ethanol and ether, slightly soluble in pyridine, soluble in methanol, acetone, ethylene glycol and other organic solvents, a water dry water can be anhydrous salt.
Last Update：2024-01-02 23:10:35
Anhydrous Lithium bromide - Preparation Method
Open Data Verified Data
- neutralization method: lithium hydroxide and hydrobromic acid are subjected to neutralization reaction, and the reaction solution is subjected to decolorization, filtration, concentration of filtrate, filtration, concentration, crystallization and separation to obtain a finished lithium bromide granular powder.
- Iron bromide method: iron filings are reacted with bromine to generate iron bromide, and lithium carbonate is then reacted with iron bromide to obtain lithium bromide. The process of this method is more complicated, and it is easy to cause the loss of lithium bromide and reduce the yield.
Last Update：2022-01-01 10:59:19
Anhydrous Lithium bromide - Use
Open Data Verified Data
is an efficient water vapor absorber and air humidity regulator. 54% ~ 55% concentration of lithium bromide can be used as absorption refrigerant, used in organic chemistry as hydrogen chloride removal agent, organic fiber (such as wool, hair, etc.), medicinal use as hypnotic and sedative
Agents, in addition, electrolytes and chemical reagents used in the photosensitive industry, analytical chemistry, and in some high-energy batteries.
Last Update：2022-01-01 10:59:19
Anhydrous Lithium bromide - Safety
Open Data Verified Data
It was packed in polyethylene plastic barrels with a net weight of 40kg per barrel. It should be stored in a ventilated and dry warehouse, and the packaging should be sealed and moisture-proof. It should be protected from rain and sunlight during transportation. When there is a fire, it can be suppressed by sand and various kinds of fire extinguisher. Lithium bromide powder can cause inhibition of the central nervous system, long-term inhalation can lead to skin rash and central nervous system disorders. Eyes and skin with direct contact, the product with the human body contact, should immediately rinse with plenty of water, and then ask a doctor for treatment. Production environment should be air circulation, to prevent the retention of lithium bromide powder in the air, the operator should wear labor protection supplies, and labor protection supplies should be stored separately, often clean.
Last Update：2022-01-01 10:59:20
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Raw Materials for Anhydrous Lithium bromide
Downstream Products for Anhydrous Lithium bromide