Tricalcium diphosphate
Calcium Phosphate Tribasic
CAS: 7758-87-4;10103-46-5;12167-74-7
Molecular Formula: Ca3O8P2
Tricalcium diphosphate - Names and Identifiers
| Name | Calcium Phosphate Tribasic |
| Synonyms | bonarka Bone Flour Bone phosphate calcigenolsimple Calcium Phosphate naturalwhitlockite Tricalcium Phosphate (Tricalcium phosphate) Calcium orthophosphate Tricalcium diphosphate APATITE TTCP, MONOCLINIC calciumtertiaryphosphate Tricalcium orthophosphate Tertiary calcium phosphate Calcium tertiary phosphate Calcium Phosphate Tribasic superfine calcium phosphate Calcium phosphate, tribasic calciumphosphate(ca3(po4)2) extra-fine calcium phosphate tricalcium phosphate activated calciumorthophosphate,tri-(tert) Tribasic calcium phosphate (Ca3(PO4)2) tricalcium phosphate for technical grade |
| CAS | 7758-87-4 10103-46-5 12167-74-7 |
| EINECS | 231-840-8 |
| InChI | InChI=1/3Ca.2H3O4P.6H/c;;;2*1-5(2,3)4;;;;;;/h;;;2*(H3,1,2,3,4);;;;;;/p-6/r3CaH2.2H3O4P/c;;;2*1-5(2,3)4/h3*1H2;2*(H3,1,2,3,4)/p-6 |
| InChIKey | QORWJWZARLRLPR-UHFFFAOYSA-H |
Tricalcium diphosphate - Physico-chemical Properties
| Molecular Formula | Ca3O8P2 |
| Molar Mass | 310.18 |
| Density | 3.14 |
| Melting Point | 1670°C |
| Water Solubility | 0.1 g/L (25 ºC) |
| Solubility | Practically insoluble in water. It dissolves in dilute hydrochloric acid and in dilute nitric acid. |
| Appearance | White powder |
| Color | White |
| Odor | Odorless |
| Solubility Product Constant(Ksp) | pKsp: 28.68 |
| Merck | 13,1699 |
| PH | 6-8 (50g/l, H2O, 20°C) suspension |
| Storage Condition | room temp |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.63 |
| MDL | MFCD00015984 |
| Physical and Chemical Properties | Properties white crystals or amorphous powder. Melting Point: 1670 ℃ relative density: 3.14 refractive index: 1.63 solubility: slightly soluble in water (solubility: 0.0025g/100ml water), soluble in dilute hydrochloric acid and nitric acid, insoluble in ethanol and acetone. |
| Use | In the food industry used as anti-caking agent, nutritional supplements, flavoring agent, buffer, pH regulator, can also be used as poultry feed additives, antacids |
Tricalcium diphosphate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. |
| WGK Germany | 3 |
| HS Code | 2835 26 00 |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg |
Tricalcium diphosphate - Upstream Downstream Industry
| Raw Materials | Phosphoric acid Calcium hydroxide |
| Downstream Products | Urokinase |
Tricalcium diphosphate - Nature
Open Data Verified Data
White amorphous powder. Odorless and tasteless. Melting point 1670 °c. d 3. 14. Stable in air at room temperature. Soluble in dilute hydrochloric acid and nitric acid, almost insoluble in water, ethanol and acetone.
Last Update：2024-01-02 23:10:35
Tricalcium diphosphate - Preparation Method
Open Data Verified Data
by calcium chloride saturated solution and food grade trisodium phosphate, in the presence of excess ammonia reaction, namely the formation of insoluble tricalcium phosphate, and then filtered, washed, dried to get the finished product. It can also be obtained by the reaction of food phosphoric acid and refined calcium hydroxide, and the finished product can be obtained by filtration, washing and drying.
Last Update：2022-01-01 09:04:07
Tricalcium diphosphate - Standard
Authoritative Data Verified Data
This product according to the calculation of the ignition product, containing calcium phosphate in Ca, should be 34.0% ~ 40.0%.
Last Update：2024-01-02 23:10:35
Tricalcium diphosphate - Trait
Authoritative Data Verified Data
- This product is white or off-white powder.
- This product is almost insoluble in water, dissolved in dilute hydrochloric acid or dilute nitric acid.
Last Update：2022-01-01 11:28:50
Tricalcium diphosphate - Introduction
No smell. Tasteless. Stable in air and decomposed in hot water. Soluble in dilute hydrochloric acid and nitric acid, almost insoluble in water, ethanol and acetic acid.
Last Update：2022-10-16 17:28:40
Tricalcium diphosphate - Use
Open Data Verified Data
It is used in the food industry as an anti-caking agent, a nutritional supplement, a buffer, a flavoring agent, a yeast food, a diluent for a vegetable extract, an animal oil refining aid, and a stabilizer. Such as flour anti-caking agent, milk powder, candy, pudding, spices, meat additives, animal oil refining AIDS, yeast food. As an anti-caking agent, China's provisions can be used for solid beverages, the maximum use of 8. og/kg ~ can also be used for wheat flour, the maximum use of 0. 03g/kg * fried potato chips 2. Og/kg; Soybean powder, soybean milk powder 3~20 g/kg; Compound seasoning is limited to GMP. It can also be used as a nutrition enhancer, pH regulator and buffer. For non-carbonated beverages, the maximum amount of 2. og/kg.
Last Update：2022-01-01 09:04:07
Tricalcium diphosphate - Differential diagnosis
Authoritative Data Verified Data
- take about 0.5g of this product, add dilute nitric acid to dissolve, add ammonium molybdate solution, warm, yellow precipitate.
- this product should be the identification of calcium salt reaction (1 )(General 0301).
Last Update：2022-01-01 11:28:50
Tricalcium diphosphate - Safety
Open Data Verified Data
ADI O ~ 70mg/kg (phosphate dosage based on phosphorus; FAO/WHO,2001);GRAS(FDA, & sect;182. 1217. & sect;182. 5217.& sect;184. 1214, 2000). Should be stored in a dry, ventilated, clean warehouse, and toxic or polluting items stored separately. Not mixed for storage and transportation.
Last Update：2022-01-01 09:04:08
Tricalcium diphosphate - Exam
Authoritative Data Verified Data
chloride
take 0.25g of this product and add 50ml of dilute nitric acid to dissolve the solution. If necessary, filter with filter paper without chloride ion, add water to dilute to 0801, shake, according to the chloride test method (General rule 0.14%), compared with the standard sodium chloride solution of with the method of preparation of the control solution, not more concentrated ().
sulfate
take 0.40g of this product, add dilute hydrochloric acid 4M l to dissolve, add water to make 100ml, filter, take additional filtrate 25ml, put it in 50ml Nessler's colorimetric tube, according to the sulfate test method (General rule 0802), compared with the standard potassium sulfate solution of ML with the method of the control solution, should not be more concentrated (0 .5%).
fluoride precision scale
take sodium fluoride, dried at 105°C for 1 hour, 221mg, put it in a 73.5 measuring flask, add appropriate amount of water to dissolve, and add buffer solution (take sodium citrate g, add water 250ml to dissolve, then get it) 50.0ml, dilute to the scale with water, shake well, then get fluoride standard solution (equivalent to 1mg of F per 1 ml).
reducing substance
take 10.0g of this product and add 100 of dilute sulfuric acid. After mixing 0ml, filter, take the filtrate 50.0ml, add potassium permanganate titration solution (0.02mol/L)0.10ml, water bath heating for 5 minutes, the solution of purple color should not disappear.
oxidative substance protected from light
take this product l.O g, add 100.0ml dilute sulfuric acid and stir, filter, take additional filtrate 50.0, put it in Nessler's colorimetric tube, add potassium iodide 0.2g, add 1% starch solution 2ml, shake, immediately add 1.0ml of fresh M-chloroperoxybenzoic acid ethanol solution (containing 10ug of M-chloroperoxybenzoic acid per 1 ml) to Nessler's colorimetric tube, add dilute sulfuric acid to 50ml, starting from "add 0.2g of potassium iodide, compared with the control solution prepared by the same method, the color should not be darker.
insolubles in acid
take about 2.0g of this product, weigh it accurately, add 25ml of dilute hydrochloric acid, heat it to dissolve it, and filter it through a No. 4 vertical melting crucible dried to constant weight, the residue was washed with hot water until the filtrate was free of chloride, and then dried at 105 ° C. To constant weight. 2%.
dissolved in water
take about 2.0g of this product, weigh it accurately, add 100.0 of water, heat it on a water bath for 30 minutes, let it cool, add an appropriate amount of water to make up the original volume, stir and filter it, the continuous filtrate (50ml) was accurately weighed, placed in an evaporating dish dried to constant weight, evaporated to dryness on a water bath, and dried to constant weight at 120 ° C. The remaining residue should not exceed 0.5%.
barium salt
take 0.50g of raw material, add 10ml of water, heat, add Dropwise hydrochloric acid to dissolve, add 2 drops of hydrochloric acid to make excess, filter, take the filtrate and add 1 ml of potassium sulfate test solution, do not produce turbidity within 15 minutes.
ignition weight loss
take this product l.Og, precision weighing, at 800°C for 30 minutes, loss of weight should not exceed 8.0%.
Lead
take about 0.2g of this product, accurately weigh it, put it in a 50ml measuring flask, dissolve it with nitric acid solution (1-100) and dilute it to the scale, shake it well, and use it as a test solution; appropriate amount of standard lead solution (equivalent to 10ug of Pb in each lml) was separately taken and diluted with nitric acid solution (1-100) to prepare one long, 10ng,20ng, 30ng and 40ng per lml, 50Ng of the control solution. The sample solution and the reference solution were determined at the wavelength of 0406. 3nm by atomic absorption spectrophotometry (the first method of general rules) with graphite furnace as the atomizer, and calculated. Lead should not exceed 0.0005%.
arsenic salt
take 0.67g of this product, add 23ml of water to dissolve, add 5ml of hydrochloric acid, check according to law (General rule 0822 first law), should comply with the provisions (0.0003%).
Last Update：2022-01-01 11:28:51
Tricalcium diphosphate - Content determination
Authoritative Data Verified Data
take about 0.6g of this product, precision weighing, add dilute hydrochloric acid 10ml, if necessary, heat to dissolve, cool, quantitatively transfer to a 100ml measuring flask, dilute to the scale with water, shake; take 10ml accurately, add 50ml of water, add ammonia drop test solution to just appear after precipitation, then add dilute hydrochloric acid drop until the precipitation is dissolved, add ethylenediamine tetraacetic acid disodium titration solution (0.05mol/L) add 10ml of ammonia-ammonium chloride buffer (pH10.0) and a small amount of Chrome Black T indicator, and titrate to purple with zinc titration solution (0.05mol/L), the results were corrected by blank test. Each 1 ml of ethylene diamine tetraacetic acid disodium titration solution (0.05mol/L) is equivalent to 2.004mg of Ca.
Last Update：2022-01-01 11:28:52
Tricalcium diphosphate - Category
Authoritative Data Verified Data
pharmaceutical excipients, fillers.
Last Update：2022-01-01 11:28:53
Tricalcium diphosphate - Storage
Authoritative Data Verified Data
sealed storage.
Last Update：2022-01-01 11:28:53
Tricalcium diphosphate - Reference Information
| FEMA | 3081 | TRICALCIUM PHOSPHATE |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| solubility in water (g/100ml) | grams dissolved per 100ml of water: 2 × 10-3/20 ℃ |
| content analysis | accurately weigh a sample of 150mg and place it in a 250ml beaker with a magnetic stirrer, this was dissolved in a mixture of 5ml of hydrochloric acid and 3ml of water (if necessary, warm-assisted). Carefully add 125ml of water. Under constant stirring, 0.5ml of triethanolamine, 300mg of hydroxynaphthol blue indicator, and about 23ml of 0.05mol/L disodium EDTA (added dropwise from a 50ml burette) were added sequentially. A 45% sodium hydroxide solution was added until the initial red color became clear blue, and the dropwise addition was continued until it became purple, followed by an additional 0.5. The pH should be between 12.3 and 12.5. Continue titration with 0.05mol/L disodium EDTA to a clear blue end point for at least 60s. Each mL of 0.05mol/L disodium EDTA corresponds to 2.004mg of calcium. |
| toxicity | Adl 0~70 mg/kg (as phosphorus, FA()/WI{(],1985). According to FAO/WHO(1984): edible calcium phosphate added in glucose powder, sugar cane sugar powder for 15 g/kg; Sweetened condensed milk, cream for 2 g/kg (single); Milk powder, the cream powder is 5g/kg (single use); The processed cheese is 9 g/kg; The cocoa powder is 10 g/kg; The cold drink is 2 g/k (single use). Dosage as flavoring agent: 0.1% for soft drinks; 0.005% for candy; 0.036% for meat. Adl 0-70 mg/kg (calculated as phosphorus, FAO/WHO,1985). Adl 0-70mg/kg (total phosphate in terms of phosphorus; FAO/WHO,2001). No special provisions are made by ADI (EEC,1990). GRAS (FDA, § 182.1217, § 182.5217,§ 184.1214. 2000). |
| usage limit | GB 2760-2001(g/kg): wheat flour 0.03 (flour); Solid beverage 8.0; non Carbonated Beverage 2.0; Fried potato chips 2.0; Compound seasoning GMP; Soybean powder, soybean milk powder, 3~20. FAO/WHO(1984,g/kg): glucose powder, sugar cane sugar powder 15 (no starch); Low-fold concentrated milk, sweetened condensed milk, cream, 2, with other stabilizers 3 (anhydrous); Milk powder, cream powder 5 (anhydrous); Processed cheese 9 (total phosphate, phosphorus); Broth, 15mg/kg (only refers to dehydrated products); Cocoa powder 10; Cold drink 2 (P2O5). FEMA(mg/kg): Soft drink 1000, cold drink 46, Candy 50~60, baked goods 80, pudding 760, condiment 540, meat 360. Japan (1998): Ca is limited to 1% (special nutrition food exception). |
| Use | used as mordant, also used for coloring of ceramics, glass, paint, etc. used as poultry feed additive. Can promote feed digestion, make poultry weight gain. At the same time can also treat livestock rickets, rickets, etc. as anti-caking agent, China's provisions can be used for solid beverages, the maximum use of 8.0g/kg; Can also be used for wheat flour, the maximum use of 0.03g/kg. It can also be used as a nutrition enhancer, pH regulator and buffer. used in the manufacture of ceramics, colored glass, and self-made glass. It can be used as a binder in dentistry, plastic stabilizer, grinding powder, syrup clarifier, chemical fertilizer. It is also used in the rubber and printing and dyeing industries. It is used as an acid-making agent in Medicine (for patients with gastric hyperacidity) It is mainly used as an additive of phosphorus and calcium element for livestock. It is also suitable for acid soil as basal fertilizer. It is mainly used for polystyrene, styrene-acrylonitrile, expandable polystyrene polymerization as dispersant, as well as ceramics, biological materials, fluorescent materials and so on. used in the food industry as anti-caking agents, nutritional supplements (fortified with calcium), flavoring agents. Can be used as a buffer, pH regulator. It can also be used as a feed additive for poultry. It is used as an antacid in medicine. used as anti-caking agents, nutritional supplements, flavoring agents, buffers, pH regulators in the food industry, as poultry feed additives, antacids plastic stabilizers, preparation of phosphoric acid and phosphorus compounds. Mordant. Clear syrup. Animal feed. Β-tricalcium phosphate has been widely used in bone defect repair and bone replacement. |
| production method | can be prepared by the reaction of phosphoric acid and milk of lime solution or trisodium phosphate solution and saturated calcium chloride solution. Phosphoric acid method the thermal phosphoric acid solution after arsenic removal is added to the reactor, and the refined saturated milk of lime solution, which is purified to remove impurities such as arsenic and lead, is added to the reactor for neutralization reaction under stirring, when the pH value is above 8.1, the formation of three calcium phosphate precipitation. The molar ratio of CaO/P2O5 in the precipitate composition is controlled to be about 3, and the resulting precipitate is filtered, washed with water, centrifuged for dehydration, and dried to obtain a finished edible tricalcium phosphate product. Its 3Ca(OH)2+2H3PO4 → Ca3(PO4)2 + 6H2O industrial production methods include calcium chloride-trisodium phosphate double decomposition method and thermal phosphoric acid-lime milk direct reaction method. Double decomposition method of trisodium phosphate solution in the presence of excess ammonia and appropriate amount of calcium chloride saturated solution for double decomposition reaction, the formation of insoluble tricalcium phosphate precipitation, after filtration, washing, adding dispersing wetting agent (such as sodium alkylbenzene sulfonate or sodium alkyl sulfonate, etc, add the amount of tricalcium phosphate 0.2% ~ 0.5%), dispersant (such as styrene-maleic anhydride copolymer, etc.), after stirring, drying, prepared active tricalcium phosphate product. Its 2Na3PO4+3 CaCl2 [excess ammonia present] → Ca3(PO4) 2+6NaCl phosphoric acid method in the saturated milk of lime solution, the thermal phosphoric acid solution is added to react to generate tricalcium phosphate precipitate, and the molar ratio of CaO/P2O5 in the precipitation composition is controlled to be about 3, washing, adding dispersing wetting agent, dispersing agent, and then stirred evenly, dried, prepared active tricalcium phosphate product. The active calcium phosphate used as the dispersant 3Ca(OH)2+2H3PO4 → Ca3(PO4)2 + 6H2O can be made into paste or powder and added to the suspension polymer. The main production methods include melting defluorination method in Cyclone furnace (hydrothermal method) and rotary kiln sintering defluorination method (acidothermic method). By melting method, phosphate ore, dolomite, silica and the like are measured according to the proportion of ingredients, and then crushed and then ground into fine powder with a mesh of more than 80 by a ball mill. Material ratio control residual alkalinity <1 (I. E. CaO + MgO-3P2O5/SiO2)+ Al2O3<1). The material is made slightly acidic, and at a high temperature of 1350~1500 ℃, the product is fixed with α-type tricalcium phosphate glass by melting and defluorination through water vapor flow, and quenching the melt by water, After drying and ball milling, the final product of feed-grade defluorinated calcium phosphate was obtained. Its 2CASF (PO4)3 + H2O + SiO2 → 3 Ca3(PO4)2 + CaSiO3 + 2HF to produce defluorinated calcium phosphate products containing more than 530% P2O, 0.2% fluorine. The sintering method is to appropriately reduce the melting point of the ingredients and promote the extraction of fluorine from the phosphate rock. The phosphate rock powder is mixed with phosphoric acid, a small amount of silica, soda ash and mirabilite by a biaxial mixer, after granulation, it is sent to a rotary kiln (or a fluidized bed furnace) for sintering, and heated to above 1200 ℃ with natural gas or gas. After sintering for 1H, the fluorine in the phosphate rock is released as HF and sif4. After cooling, the burned product is crushed to obtain a feed-grade defluorinated calcium phosphate product containing more than 40% of P2O5 and less than 0.2% of fluorine. Its Ca10F2(PO4)6+14H3PO4 + 10H2O → 10Ca(H2PO4)2? H2O+2HF↑Ca(H2PO4)2? H2O → Ca(PO3)2+3 H2OCa10F2(PO4)6 +4Ca(PO3)2 + H2O → 7Ca2P2O7 + 2HF ↑ Ca10F2(PO4)6 +(2a2P2O7 + H2O → 4 Ca3(PO4)2 + 2HF trisodium phosphate method the trisodium phosphate solution is reacted with an appropriate amount of calcium chloride saturated solution in the presence of excess ammonia, the insoluble tricalcium phosphate precipitate is formed, and the tricalcium phosphate product is obtained by filtration, washing and drying. Its 2Na3PO4+3 CaCl2 [excess ammonia present] → Ca3(PO4)2+6NaCl 1 Phosphoric acid method to add food grade phosphoric acid solution in saturated milk of lime, that is, tricalcium phosphate precipitate (control CaO/P2O5 = 3) is generated, filtered, washed and dried to obtain a finished product. 3Ca(OH)2+2H3PO4 → Ca3(PO4)2+6H2O2 trisodium phosphate method by saturated solution of calcium chloride and food grade trisodium phosphate, in the presence of excess ammonia reaction, that is, the formation of insoluble tricalcium phosphate; after filtration, washing, drying to obtain the finished product. 3CaCl2+2Na3PO4 → Ca3(PO4)2 + 6NaCl The superphosphate method was used in the industrial production. Calcium superphosphate method to dry, crushed to about 2mm of calcium superphosphate fine particles, into the calciner, continuously stirred at 890~1300 ℃ for 8~10H, after defluorination (800~900 ℃), after desulfurization (>1200 ° C.) treatment, the calcium phosphate product for feed is prepared by cooling, crushing and screening through a 180 mesh sieve. Its Ca(H2PO4)2? H2O → Ca(PO3)2+3 H2OCa(PO3)2 + CaSO4 → Ca2P2O7 + SO3Ca2P2O7 + CaSO4 → Ca3(PO4)2 + SO3 the escape of fluorine: h2SiF6 → SiF4 + 2HF ↑;4HF + SiO2 → SiF4 + 2H2O |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 15:16:52
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Raw Materials for Tricalcium diphosphate
Downstream Products for Tricalcium diphosphate