2090-05-3
Calcium benzoate trihydrate
CAS: 2090-05-3
Molecular Formula: C7H8CaO2
2090-05-3 - Names and Identifiers
| Name | Calcium benzoate trihydrate |
| Synonyms | Calcium benzoate CALCIUM BENZOATE calcium dibenzoate Benzoic acid calcium CALCIUM BENZOATE REAGENT Calcium benzoate trihydrate Di(benzoic acid)calcium salt Bis(benzoic acid)calcium salt CALCIUM BENZOATE, REAGENTCALCIUM BENZOATE, REAGENTCALCIUM BENZOATE, REAGENTCALCIUM BENZOATE, REAGENT |
| CAS | 2090-05-3 |
| EINECS | 218-235-4 |
| InChI | InChI=1/2C7H6O2.Ca/c2*8-7(9)6-4-2-1-3-5-6;/h2*1-5H,(H,8,9);/q;;+2/p-2 |
2090-05-3 - Physico-chemical Properties
| Molecular Formula | C7H8CaO2 |
| Molar Mass | 164.22 |
| Density | 1.42[at 20℃] |
| Boling Point | 249.2℃[at 101 325 Pa] |
| Flash Point | 111.4°C |
| Water Solubility | Soluble in water (2.6 g/100ml at 0°C). |
| Vapor Presure | 0.093Pa at 25℃ |
| Storage Condition | Room Temprature |
| MDL | MFCD00167164 |
| Physical and Chemical Properties | White or colorless prismatic crystals, or white powder. The relative density was 1.44. Soluble in water. |
| Use | Used for soda, fruit juice, soy sauce, vinegar, etc |
2090-05-3 - Risk and Safety
| TSCA | Yes |
2090-05-3 - Reference Information
| LogP | 1.87 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | calcium benzoate is a white or colorless prismatic crystal, or white powder, with a relative density of 1.44. Slightly soluble in water and easily soluble in hot water. Calcium benzoate is very stable at room temperature. |
| use | calcium benzoate can be used as a preservative; Antimicrobial. It can also be used in soda, fruit juice, soy sauce, vinegar, etc.; calcium benzoic acid can also be used in the feed industry as a preservative and growth promoter. Preservative; Antimicrobial. For soda, juice, soy sauce, vinegar, etc. |
| preparation | a processing method for low-temperature synthesis of calcium benzoate, which is characterized in that 65-85Kg of industrial benzoic acid, 28-32Kg of calcium hydroxide, catalyst triethanediastearate, ethylenestearamide, 1-3Kg of ethylenestearamide, 300-500Kg of clear water are heated and stirred in a reaction kettle, the heating temperature is controlled at 60-90 ℃, and the reaction is stirred for 2-4 hours, 5-15Kg of release agent was added, then stirred for half an hour, filtered and dried. In the specific implementation, the weak acidity of benzoic acid and the alkalinity of calcium hydroxide are used, 75Kg of industrial benzoic acid, 30Kg of calcium hydroxide, 2Kg of catalyst triethanol distearic acid ester, 2Kg of ethylene distearamide, 2Kg of ethyl dilauramide and 400Kg of clear water are used, heated and stirred in a reaction kettle, the heating temperature is controlled at 80 ℃, after stirring for 3 hours, 12Kg of isolating agent is added, then stirred for half an hour, filtered and dried, with better fineness. The average yield of the product is 99.5%. |
| solubility in water (g/100ml) | dissolution grams per 100ml of water at different temperatures (℃): 2.32g/0 ℃;2.45g/10 ℃;2.72g/20 ℃;3.02g/30 ℃;3.42g/40 ℃ 4.71g/60 ℃;6.87g/80 ℃;8.55g/90 ℃;8.7g/100 ℃ |
| identification test | solubility dissolved in water. Measured according to OT-42 method. Benzoate test (IT-5) was positive. Positive for calcium test (IT-10). |
| content analysis | accurately weigh 0.6g of the sample after drying at 105 ℃ for 4 hours, dissolve in a mixed solution consisting of 20ml of water and 2ml of dilute hydrochloric acid test solution (TS-117), and dilute to about 100ml with water. Under stirring (preferably with a magnetic stirrer), about 30ml of 0.05mol/L EDTA disodium is added through a 50ml burette, 15ml of sodium hydroxide test solution (TS-224), 40mg of ammonium purate indicator solution (0.25g of hydroxynaphthol blue can also be used instead of naphthol green test solution) and 3ml of naphthol green test solution (TS-154) are added, and the titration is continued until the solution is dark blue. Disodium EDTA of 0.05mol/L per mL is equivalent to 14.116mg of calcium benzoate (C14H10CaO4). |
| toxicity | ADI 0~5 mg/kg (including total ADI of benzoic acid and its salts, ethyl benzoate and benzyl alcohol, calculated as benzoic acid; FAO/WHO,2001). HACSG is listed as a restricted list. |
| usage limit | FAO/WHO(1984) stipulates that it is the same as "07019, sodium benzoate". USDA,9CFR,§ 318.73(2000); Margarine, 0.1%; The combined amount with sorbic acid and its salts is 0.2% (calculated as benzoic acid and sorbic acid, calculated as the amount of product). |
| production method | is obtained by the reaction of benzoic acid and calcium bicarbonate. |
| category | flammable solids |
| flammability hazard characteristics | when heated, open flames are flammable; thermal decomposition is spicy and stimulates smoke |
| storage and transportation characteristics | warehouse low temperature ventilation and drying; prevent open flames, sparks, high temperature |
| fire extinguishing agent | water, carbon dioxide, foam, dry powder |
Last Update：2024-04-09 21:11:58
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