MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE
phosphoric acid, magnesium salt, hydrate (1:1:3)
CAS: 7782-75-4
Molecular Formula: H7MgO7P
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Names and Identifiers
| Name | phosphoric acid, magnesium salt, hydrate (1:1:3) |
| Synonyms | Dimagnesium phosphate MagnesiumPhosphateDibasicFcc Magnesium hydrogen phosphate MAGNESIUM PHOSPHATE DIBASIC 3 H2O MAGNESIUM HYDROGEN PHOSPHATE-3-HYDRATE MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE Magnesium Hydrogen Phosphate Trihydrate MAGNESIUM HYDROGEN O-PHOSPHATE, HYDROUS MAGNESIUM HYDROGEN PHOSPHATE TRIHYDRATE |
| CAS | 7782-75-4 |
| EINECS | 616-511-2 |
| InChI | InChI=1/Mg.H3O4P.3H2O/c;1-5(2,3)4;;;/h;(H3,1,2,3,4);3*1H2/q+2;;; |
| InChIKey | OKIWLDVQGKRUNR-UHFFFAOYSA-L |
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Physico-chemical Properties
| Molecular Formula | H7MgO7P |
| Molar Mass | 174.33 |
| Density | 2.123g/mLat 25°C(lit.) |
| Boling Point | 158°C at 760 mmHg |
| Solubility | 5 M HCl: 0.1M at20°C, clear, colorless |
| Vapor Presure | 1.41mmHg at 25°C |
| Appearance | White crystal |
| Color | White |
| Maximum wavelength(λmax) | ['λ: 260 nm Amax: 0.035', , 'λ: 280 nm Amax: 0.035'] |
| Storage Condition | 2-8°C |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00150390 |
| Physical and Chemical Properties | Colorless orthorhombic crystal plate-like or needle-like crystal or white powder. |
| Use | Used as a plastic stabilizer, dental abrasives and treatment of rheumatoid arthritis drugs raw materials, the food industry as a nutritional supplement |
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | 36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 2835 29 90 |
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Nature
Open Data Verified Data
colorless orthorhombic crystal system plate-like or needle-like crystal or white powder. The relative density was 2.123. Soluble in acid, slightly soluble in cold water, insoluble in alcohol. One crystal water was lost at 205 °c and decomposed into pyrophosphate when heated to 550-650 °c.
Last Update：2024-01-02 23:10:35
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Preparation Method
Open Data Verified Data
Industrial production is generally made by the reaction of thermal phosphoric acid with light magnesium oxide or soluble magnesium salts. The thermal phosphoric acid is added into the reactor, magnesium oxide is slowly added under stirring for neutralization reaction, the pH value is controlled at about 5, arsenic removing agent and heavy metal removing agent are added for solution purification, filter to remove arsenic and heavy metals and other impurities, filtration, the filtrate is cooled to crystallize, the crystallization temperature is controlled at more than 360 ° C, and then the centrifugal dehydration and drying are carried out to prepare the finished magnesium hydrogen phosphate trihydrate.
Last Update：2022-01-01 09:07:48
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Introduction
No smell. Decompose to pyrophosphate by heating. Loss of 1 molecule of crystal water at 205 ℃ and decomposition at 550-650 ℃. Soluble in dilute acid, slightly soluble in water, insoluble in ethanol.
Last Update：2022-10-16 17:28:43
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Use
Open Data Verified Data
- is used as a nutritional supplement, a pH adjuster, and a stabilizer. GMP is the limit.
- used as plastic stabilizer, fertilizer ammonium bicarbonate stabilizer, dental abrasive. It is a raw material for the manufacture of drugs for the treatment of rheumatoid arthritis.
Last Update：2022-01-01 09:07:48
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Safety
Open Data Verified Data
ADI = 0-70mg/kg (in terms of phosphorus, FAO/WHO, 2001). GRAS (FDA,& sect;182, 2000). Should be stored in a cool, ventilated, dry warehouse, to prevent moisture, heat. With Isolation storage of toxic and hazardous substances. It is not allowed to be mixed with acid and toxic and hazardous substances during transportation. It should be protected from rain and sun exposure. During loading and unloading, it should be handled with care to prevent the package from breaking and moisture. Fire, can use water, sand, all kinds of fire extinguishing.
Last Update：2022-01-01 09:07:49
MAGNESIUM PHOSPHATE DIBASIC TRIHYDRATE - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| identification test | a sample of about 200rag was dissolved in TS-158 dilute nitric acid solution (TS-22), and ammonium molybdate solution () was added dropwise. A green-yellow ammonium phosphomolybdate precipitate soluble in ammonia solution (TS-13) was generated. Take a sample of TS-2 mg, dissolved in of dilute acetic acid solution () and 20ml of water. 1 ml of ferric chloride solution (TS ~ 22) was added, allowed to stand for 5min and filtered. The filtrate was positive for magnesium test (IT -21). |
| content analysis | accurately weigh about mg of burning residue, add 50ml of water and 2ml of hydrochloric acid to heat and dissolve. After cooling, dilute to 100.00 with water and mix well. Take 50ml of this solution into a 400ml beaker, add 100ml of water, and heat to 55-60 °c. 0.1mol/ml of disodium EDTA was added through a burette, and the pH was adjusted to 10 with a sodium hydroxide solution (TS-224) under a magnetic stirrer. After adding 10ml of ammonia-ammonium chloride buffer solution (TS-12) and 12 drops of wool Chrome Black test solution (TS-97), titrate with 0.1mol/L EDTA disodium until it changes from wine red to pure blue, the magnesium pyrophosphate (Mg2P2O7) content (mg) in the residue was calculated as follows. Mg2P207 content (mg)= 2 × 11.13 ×v formula: V -- Consumption of 0.1mol/L EDTA disodium, ml, when titrating 50.0ml sample solution. |
| toxicity | ADI 0~70mg/kg (based on total phosphate content of phosphate juice, FAO/WHO,2001). GRAS(FDA,§ 182.5434,2000). |
| usage limit | is limited to GMP (FDA,§ 184.1434,2000). |
| Use | nutritional supplement; Ph Adjusting Agent; Stabilizer. Plasticizers for packaging materials. It is used as a raw material for plastic stabilizers, dental abrasives and drugs for treating rheumatoid arthritis, and used as a nutritional supplement in the food industry plastic stabilizers. Food additives. used as dental abrasive |
| production method | is obtained by reacting orthophosphoric acid with magnesium oxide. |
Last Update：2024-04-10 22:29:15
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