magnesium chloride 25 mm solution*pcr
Magnesium chloride hexahydrate
CAS: 7791-18-6
Molecular Formula: Cl2H12MgO6
magnesium chloride 25 mm solution*pcr - Names and Identifiers
magnesium chloride 25 mm solution*pcr - Physico-chemical Properties
| Molecular Formula | Cl2H12MgO6 |
| Molar Mass | 203.3 |
| Density | 1.569 |
| Melting Point | 117 °C |
| Boling Point | 1412℃ |
| Water Solubility | 2350 g/L (20 ºC) |
| Solubility | H2O: 1M at20°C, clear, colorless |
| Appearance | White crystal |
| Specific Gravity | 1.569 |
| Color | White to slightly gray |
| Odor | Odorless |
| Maximum wavelength(λmax) | ['λ: 260 nm Amax: 0.030', , 'λ: 280 nm Amax: 0.025'] |
| Merck | 14,5662 |
| PH | 4.5-7.0 (50g/l, H2O, 20℃) |
| Storage Condition | 2-8°C |
| Stability | Stable. Incompatible with strong oxidizing agents. Protect from moisture. |
| Sensitive | Hygroscopic |
| MDL | MFCD00149781 |
| Physical and Chemical Properties | The pure product was colorless monoclinic crystal. Industrial products are usually yellow-brown in color. Bitter and salty taste. melting point 116~118 ℃ relative density 1.569 solubility soluble in water and ethanol. |
| Use | Used in the manufacture of metal magnesium, disinfectant, fire extinguishing agent, frozen salt water, also used in ceramic, paper, textile and other industries |
magnesium chloride 25 mm solution*pcr - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 1 |
| RTECS | OM2975000 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| HS Code | 28273100 |
| Toxicity | LD50 orally in Rabbit: 8100 mg/kg |
magnesium chloride 25 mm solution*pcr - Upstream Downstream Industry
| Raw Materials | Carnallite Octadecylamine Bromine Hydrochloric acid |
| Downstream Products | Carnallite Magnesium Carbonate Ammonium paratungstate Magnesium chloride magnesium D-gluconate hydrate |
magnesium chloride 25 mm solution*pcr - Reference
| Reference Show more | 1. Yang Yutong, Zhang Qingsuo, Fu Yunlin, Sun Jing. Composition, stability and anti-oxidation activity of the pigment from the heartwood of carthami [J]. Forestry Science, 2021,57(03):126-134. 2. Hao, Xueyan, et al. "Superior anti-infective potential of eugenol-casein nanoparticles combined with polyethene glycol against Colletotrichum AE emotions." RSC Advances 11.8 (2021): 4646-4653.DOI: 10.1039/dra09283e |
magnesium chloride 25 mm solution*pcr - Nature
Open Data Verified Data
colorless crystal or white crystalline powder. Melting point of 118 deg C (decomposition);d 1. 56. Deliquescence. 19 The product is soluble in 0.6 ml water, 0.3ml boiling water, 2ml ethanol, the solution is neutral. The heating was changed to oxychloride.
Last Update：2024-01-02 23:10:35
magnesium chloride 25 mm solution*pcr - Preparation Method
Open Data Verified Data
magnesite (or magnesium oxide, magnesium carbonate) was added to water. After mixing, hydrochloric acid was slowly added. After completion of the reaction, sulfuric acid and a saturated aqueous hydrogen sulfide solution were added to the solution. The mixture was allowed to stand and filtered, and the filtrate was heated at 80 to 90 ° C. To concentrate the filtrate to a relative density of 1. 33 to 1. 35. After filtration, cooling and Suction filtration, magnesium chloride was obtained.
Last Update：2022-01-01 09:02:12
magnesium chloride 25 mm solution*pcr - Introduction
Easy to deliquesce, soluble in water, soluble in alcohol. Slowly heat to 300 ℃ to release chlorine gas. It is easy to produce ethanol and ether complexes. Dissolve in water, and at the same time release a lot of heat to obtain a clear solution. It's irritating.
Last Update：2022-10-16 17:28:52
magnesium chloride 25 mm solution*pcr - Use
Open Data Verified Data
magnesium chloride hexahydrate is widely used, is an important industrial raw material, is the main product of salt chemical industry, in the metallurgical industry, used as a refractory and wall Binder, is also the smelting metal magnesium, raw materials of magnesia; In the chemical industry, it is a raw material for making various magnesium salts, such as making magnesium oxide, magnesium carbonate, magnesium hydroxide; In the construction industry, magnesium chloride can make magnesium oxide cement, processing building components, artificial Marble, particleboard, etc.; In the textile industry for the processing of textiles; To agriculture can be made cotton defoliant, impregnated wood, wood has fire resistance; Can also be used as a freezing medium, snow melting agent, winter Construction of cement antifreeze. White magnesium chloride hexahydrate is mainly used for food, used for bean products of the coagulant. Can also be used for compound feed, protein coagulant, fermentation AIDS. Medicine with magnesium chloride can be prepared for artificial kidney dialysis solution, Disinfection solution.
Last Update：2022-01-01 09:02:13
magnesium chloride 25 mm solution*pcr - Safety
Open Data Verified Data
rat oral LDso: 8.1g/kg. Export products are lined with polyethylene plastic bags and cloth bags, and packaged in bursal bags for external use, with a net weight of 50kg per bag. Domestic products inside the village polyethylene plastic bags, external plastic woven bag packaging, each bag 70kg net weight. Should be sealed and stored in a cool, dry place, during transport to prevent rain and sun exposure. When loading and unloading, handle with care to prevent packaging damage. When a fire occurs, it can be suppressed by sand and various kinds of fire extinguisher.
Last Update：2022-01-01 09:02:13
magnesium chloride 25 mm solution*pcr - Reference Information
| pH range of acid-base indicator discoloration | 7 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| magnesium chloride hexahydrate | magnesium chloride hexahydrate, also known as sphalite, is colorless monoclinic crystal at room temperature, deliquescent, density 1.56g/cm3, the melting point is 712 ° C., and the thermal decomposition is carried out in the air, and the HC1 gas is released at about 118 ° C. To become a chlorine oxide compound, and the high temperature is decomposed into MgO and hc1. The use of magnesium chloride hydration, and alkali reaction, at 70 ℃, magnesium chloride hydration for hexahydrate magnesium chloride, and then add excess of concentrated ammonia, at this time should maintain the purity of ammonia, after adding ammonia, after cooling to room temperature, white flake Crystal magnesium hydroxide can be precipitated, and the reaction equation is: MgCl2 2NH3 2H2O → Mg(OH)2 2 NH4Cl. |
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 52.9g/0 ℃;53.6g/10 ℃;54.6g/20 ℃;55.8g/30 ℃;57.5g/40 ℃; 61g/60 ℃;66.1g/80 ℃;69.5g/90 ℃;73.3g/100 ℃ |
| purpose | used as osmotic regulator, buffer, etc. Used as analytical reagent, also used in the pharmaceutical industry, such as in the metallurgical industry, used as refractory and furnace wall of the binder, smelting magnesium raw materials. In the construction industry using magnesium chloride and magnesite made of hard Magnesia cement, artificial stone can be made. In the chemical industry is a raw material for the manufacture of various magnesium salts. In agriculture, the production of cotton defoliants. The food industry makes tofu coagulants. as coagulant, China's provisions can be used in soybean products according to the production needs of the right amount. It is used to make metal magnesium, disinfectant, fire extinguishing agent, frozen brine, and also used in ceramic, papermaking, textile and other industries quantitative analysis of arsenic acid and phosphoric acid, preparation of magnesium oxide mixture, etc. Osmotic pressure regulator; Local stop agent; Buffer. Molecular biology grade is used to activate restriction endonucleases. |
| production method | brine after concentration and precipitation of sodium chloride crystals from seawater, and after extraction of potassium chloride and bromine, it can be made into halogen tablets, relative density 1.7059(15.5 ℃), main components: MgC12 46.8%,CaCl2 3.42%,NaCl 0.36%,CaSO4 0.43%. Then after vacuum removal of bromine, atmospheric pressure evaporation to 140 ° C., after removal of impurities, cooling that has hexahydrate magnesium chloride needle crystal precipitation, after separation and recrystallization to obtain the finished product. Alternatively, magnesium chloride can be obtained by dissolving magnesium oxide or magnesium carbonate in hydrochloric acid. MgCO3 + 2HCl → MgCl2 + H2O + CO2 ↑ the mother liquor containing magnesium chloride after the preparation of the compound is concentrated by evaporation (the temperature is controlled at 165~170 ℃), and then the concentrated liquor is cooled to crystallize, separation, preparation of magnesium chloride products. |
Last Update：2024-04-09 02:00:11
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Raw Materials for magnesium chloride 25 mm solution*pcr
Downstream Products for magnesium chloride 25 mm solution*pcr