Molecular Formula | Cl2Sr |
Molar Mass | 158.53 |
Density | 3 g/mL at 25 °C (lit.) |
Melting Point | 874 °C (lit.) |
Boling Point | 1250 °C/1 atm (lit.) |
Flash Point | 1250°C |
Water Solubility | It is soluble in water, slightly soluble in ethanol, acetone. Insoluble in ammonia. |
Solubility | H2O: soluble |
Appearance | White crystal |
Specific Gravity | 3.052 |
Color | White |
Merck | 14,8840 |
Storage Condition | 2-8°C |
Stability | hygroscopic |
Sensitive | Hygroscopic |
Refractive Index | 1.650 |
MDL | MFCD00011249 |
Physical and Chemical Properties | White needle-like crystals, bitter taste, in dry air apoplexy, deliquescence in humid air. Soluble in water, slightly soluble in ethanol and acetone. Heat to 61.4 °c lost four molecules of crystal water, 100 °c into a water Salt, 115 °c dissolved in crystal water, anhydrous salt melting point 873 °c. |
Use | Used as a flux of sodium metal, also used in the production of titanium sponge, fireworks and other strontium salts |
Hazard Symbols | Xi - Irritant |
Risk Codes | R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes R36 - Irritating to the eyes |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
WGK Germany | 1 |
RTECS | WK8400000 |
TSCA | Yes |
HS Code | 28273985 |
Raw Materials | Strontium carbonate,nanometre Hydrochloric acid |
Downstream Products | Strontium carbonate,nanometre |
Reference Show more | 1. Liu Zhenhua, Zhou Chenyan, Wang Yan, et al. Identification of an agarase-producing bacterium and optimization of fermentation conditions [J]. 2016 of genomics and applied biology 35(04):892-900. 2. Liu Zhenhua, Wang Yan, Zhou Chenyan, et al. Optimization of fermentation conditions of agarase-producing strain Pseudoalteromonas citrea [J]. 2016 of genomics and applied biology 35(009):2411-2416. 3. Zhang Man, Li Hao, Xu Ting, et al.. Effect of strontium-containing crosslinked sodium alginate gel on adhesion and proliferation of preosteoblasts [J]. Shanghai Stomatology 2019 28(02):21-25. |
colorless cubic crystals. The relative density was 3. 052. Melting point 875 °c. Boiling point 1250 °c. Soluble in water, slightly soluble in ethanol, acetone, insoluble in liquid ammonia. Deliquescence in air. Hydrate has 1, 2, 6 crystal water, at 61.4 deg C to lose 4 crystal water, 100 deg C into a water, at 150 deg C into water.
hydrochloric acid method: Celite was first crushed to 200 mesh, added to a reactor and stirred with water, then industrial hydrochloric acid was slowly added, and steam was introduced for stirring to remove impurities such as calcium salts. It was then decanted and washed to neutrality. The washed slurry is stirred with water, then soda ash is added and heated with steam to react to generate strontium carbonate, which is washed with water until neutral, and then sodium sulfate and unreacted soda ash are washed away, hydrochloric acid was added to conduct acid hydrolysis reaction, and the pH value of the solution was controlled to be 4-5 at the end point of the reaction. In the case of heating to near boiling, 10% dilute sulfuric acid and 30% hydrogen peroxide were added to remove soluble barium salts and iron. The clarified solution was filtered, concentrated to 42-430Be by evaporation, cooled to crystallize, centrifuged, and dried at 220-250 °c to obtain anhydrous strontium chloride.
raw materials for the production of phosphonium salts and pigments. For the manufacture of pyrotechnic. Flux for electrolysis of metallic sodium. Used as a catalyst for organic synthesis.
packed in an iron drum lined with a plastic bag with a net weight of 50kg per drum. Should be stored in a ventilated, dry warehouse. The container must be sealed and protected from moisture. Protection against rain and moisture during transport. When loading and unloading should be light to prevent packaging rupture. In case of fire, it can be suppressed by water, sand and all kinds of fire extinguishing.
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
solubility in water (g/100ml) | dissolution grams per 100ml of water at different temperatures (℃): 43.5g/0 ℃;47.7g/10 ℃;52.9g/20 ℃;58.7g/30 ℃;65.3g/40 ℃ 81.8g/60 ℃;90.5g/80 ℃;101g/100 ℃ |
use | raw materials for producing strontium salts and pigments. Used to make fireworks. Flux for electrolysis of metallic sodium. Used as a catalyst for organic synthesis. Used as a flux for metal sodium, and also used to produce sponge titanium, fireworks and other strontium salts |
production method | hydrochloric acid method firstly pulverizes celestite to 200 mesh, adds it to the reactor and stirs it with water, then slowly adds industrial hydrochloric acid, and introduces steam to stir to remove impurities such as calcium salt. Then decant and wash to neutral. The washed slurry is stirred with water, then soda ash is added, and the reaction is heated with steam to generate strontium carbonate, washed with water to be neutral, sodium sulfate and unreacted soda ash are washed away, and then hydrochloric acid is added for acidolysis reaction. The end point of the reaction controls the pH of the solution to 4~5. Under the condition of heating near boiling, 10% dilute sulfuric acid and 30% hydrogen peroxide are added to remove soluble barium salt and iron. The clarified solution is filtered, concentrated to 42~43 ° Bé by evaporation, then cooled and crystallized, centrifuged, and dried at 220~250 ℃ to obtain anhydrous strontium chloride. Its SrSO4 Na2CO3 → SrCO3 Na2SO4SrCO3 2HCl → SrC12 H2O CO2 ↑ |