Name | aluminum phosphate |
Synonyms | Alminum phosphate aluminum phosphate Dialuminum phosphate aluminum orthophosphate Primary alminum phosphate ALUMINIUM PHOSPHATE BASIC AluMiniuM phosphate Powder ALUMINUM PHOSPHATE SOLUTION Aluminum Phosphate Tribasic Aluminum monohydrogen phosphate Aluminum phosphate, Puratronic (metals basis) |
CAS | 7784-30-7 13765-93-0 |
EINECS | 232-056-9 |
InChI | InChI=1/Al.H3O4P.3H/c;1-5(2,3)4;;;/h;(H3,1,2,3,4);;;/p-3/rAlH3.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)/p-3 |
Molecular Formula | AlO4P |
Molar Mass | 121.95 |
Density | 2.56 g/mL at 25 °C (lit.) |
Melting Point | 1500 °C |
Water Solubility | Insoluble |
Solubility | Very slightly soluble in water, practically insoluble in alcohol. It dissolves in dilute solutions of mineral acids and alkali hydroxides. |
Appearance | White powder |
Specific Gravity | 2.566 |
Color | White |
Exposure Limit | ACGIH: TWA 1 mg/m3 |
Solubility Product Constant(Ksp) | pKsp: 20.01 |
Merck | 14,358 |
Storage Condition | Inert atmosphere,Room Temperature |
MDL | MFCD00003430 |
Physical and Chemical Properties | Character white orthorhombic crystal or powder. melting point> 1500 ℃ relative density 2.566 solubility insoluble in water, soluble in concentrated hydrochloric acid, concentrated nitric acid, alkali and alcohol. |
Use | Used as glass production flux, ceramic, dental adhesive and the production of emollients, fire-retardant coatings, conductive cement and other additives |
Hazard Symbols | C - Corrosive |
Risk Codes | 34 - Causes burns |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 3260 8/PG 2 |
WGK Germany | 1 |
RTECS | TB6450000 |
TSCA | Yes |
HS Code | 28352990 |
Hazard Class | 8 |
Toxicity | LD50 oral in mouse: > 5gm/kg |
Raw Materials | Phosphoric acid Aluminum hydroxide Sodium hydroxide |
needle-like single crystal. It has excellent heat resistance, high strength and high wear resistance. Fiber length 100 ~ 500pm, fiber diameter 10 ~ 20pm, length to diameter ratio of more than 5. White orthorhombic crystals or powder. The relative density was 2. 566. Melting point> 1500 °c. Insoluble in water, soluble in
Concentrated hydrochloric acid, concentrated nitric acid, alkali and alcohol. It is relatively stable at 580 ° C., and does not melt at 1400 ° C. To form a gel. At room temperature to 1200 deg C, there are four kinds of aluminum phosphate crystal form, common for Type A.
It is used as a flux in the manufacture of special glass. For ceramics, teeth as an adhesive. It is also used as an additive in the production of emollients, fire-resistant coatings, conductive cements, etc. The textile industry is used as an antifouling agent. Used as a catalyst in organic synthesis. It is also used in the pharmaceutical and paper industry.
plastic woven bag packed with polyethylene plastic bag. 25kg net weight per bag. Should be stored in a ventilated, dry warehouse, sealed packaging, pay attention to moisture. It should not be mixed with acids, alkalis and colored chemical raw materials. When loading and unloading, it should be handled with care to prevent broken packaging
Injury. Fire, water, sand, carbon dioxide fire extinguishing.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | aluminum phosphate can be used in Waterborne Alkyd, epoxy, polyurethane, etc., and it has high performance anti-corrosion requirements in the field of coatings, there is a need for alternative chromate coating systems that effectively address the early and long-term corrosion resistance of coatings. |
Use | is used as a flux in the manufacture of special glass. For ceramics, teeth as an adhesive. It is also used as an additive in the production of emollients, fire-resistant coatings, conductive cements, etc. The textile industry is used as an antifouling agent. Used as a catalyst in organic synthesis. It is also used in the pharmaceutical and paper industry. used as glass production flux, ceramic, dental adhesive and the production of emollients, fire retardant coatings, conductive cement additives ceramic industry. Flux. Special glass. Adhesive formulation. Dental cement. used as chemical reagent and flux |
production method | hydrothermal synthesis in a stirred neutralization reactor, sodium aluminate is added to hot water to dissolve into a concentrated solution, heating to 85 ℃, then adding 85% Phosphoric acid for neutralization reaction, white precipitate is formed, and the end point is controlled at Ph 4.2~4.5, and then the precipitate and solution are sent to the autoclave with stirring device, centrifugation was performed after heating at 250 °c for several hours. The solid matter is sent to the washing tank, washed with dilute hydrochloric acid solution first, and then washed with clear water for several times to remove water-soluble impurities, and filtered and dried to prepare a finished aluminum phosphate product. The mother liquor of centrifugal separation is sodium dihydrogen phosphate, and the by-product sodium dihydrogen phosphate is recovered and treated. The 2H3PO4 + NaAIO2 → AlPO4 + NaH2PO4 + 2H2O double decomposition method, trisodium phosphate and aluminum sulfate were dissolved in water at 85~95 ° C. In the dissolution tank, and then filtered with a plate and frame filter press to remove water-insoluble impurities. The two solutions were sent to a reaction kettle for metathesis reaction at an appropriate concentration and molar ratio [A12(SO4)3/Na3 PO4 = 1:3] to form a white colloidal aluminum phosphate precipitate, liquid-solid separation was then performed directly with a plate-and-frame filter press. The sodium sulfate is recovered from the separated mother liquor, and the aluminum phosphate left in the filter press is washed with dilute hydrochloric acid solution and then washed several times with clear water to remove impurities such as sulfate. After filtration, drying and grinding, the aluminum phosphate product is obtained. A12(SO4)3+2Na3PO4 → 2AIPO4+3Na2SO4 |