識別子と物理属性
| CAS No. | 10124-52-4 |
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| 分子式 | K4P2O7 |
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| 平均分子量 | 330.34 g/mol |
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| 単同位体質量 | 329.76675232 g/mol |
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| SMILES | O=P([O-])([O-])OP(=O)([O-])[O-].[K+].[K+].[K+].[K+] |
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| InChIKey | RYCLIXPGLDDLTM-UHFFFAOYSA-J |
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| PubChem CID | 23740 |
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| EC No. | 230-785-7 |
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| DTXSID | DTXSID3036446 |
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| 現地名 | 二りん酸/カリウム,(1:x) |
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化学・物理的性質
| 極性表面積 | 136 |
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| 水素結合供与体数 | 0 |
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| 水素結合受容体数 | 7 |
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| 回転可能結合数 | 0 |
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| 重原子数 | 13 |
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| 形式電荷 | 0 |
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| 複雑度 | 124 |
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| 物質分類 | Metals -> Phosphates, Metallic Salts |
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| 化粧品 | Cosmetic ingredients (Tetrapotassium Pyrophosphate) -> CIR (Cosmetic Ingredient Review)BufferingChelating |
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| pH | Between 10,0 and 10,8 (1 % solution) |
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| 食品添加物 | EMULSIFIER OR EMULSIFIER SALT, TEXTURIZER -> FDA Substance added to food |
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| 密度 | 2.33 @25 °C |
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| 溶解度 | Soluble in water, insoluble in ethanolSolubility in water, g/100ml at 25 °C: 187 (very good) |
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| 沸点 | 300 °C @760 [mm Hg] |
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| 融点 | 1090 °C180 °C |
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| Physical Description | Potassium tetrapyrophosphate is a whitish-colored powdered solid. It is toxic by ingestion, and/or inhalation. Contact with the substance should be avoided.LiquidOther SolidDry PowderCBILarge CrystalsColourless crystals or white, very hygroscopic powderTrihydrate: Colorless deliquescent solid[Merck Index] White odorless solid[ICSC] White hygroscopic powder or granules[Alfa Aesar MSDS]ODOURLESS HYGROSCOPIC WHITE GRANULES OR POWDER. |
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安全性と法規制
| GHS 分類 | This chemical does not meet GHS hazard criteria for 2.3% (62 of 2678) of reports.WarningH319 (96.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]P264+P265, P280, P305+P351+P338, and P337+P317 (click each P-code to see the statement)Aggregated GHS information provided per 2678 reports by companies from 17 notifications to the ECHA C&L Inventory. |
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| 規制情報 | Chemical: Diphosphoric acid, tetrapotassium saltDiphosphoric acid, potassium salt (1:4) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Diphosphoric acid, potassium salt (1:4) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 09-11-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14700Tetrapotassium pyrophosphate: Does not have an individual approval but may be used under an appropriate group standard |
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| その他の安全情報 | IMAP assessments - Diphosphoric acid, tetrapotassium salt: Environment tier I assessment |
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| 輸送ラベル（DOT） | Poison |
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| 火災危険 | Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. |
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| 健康有害性 | Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]: |
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| 有害性の概要 | Causes somnolence and gastrointestinal changes in oral lethal-dose studies of ratsCauses changes in renal tubules and weight loss in 13-week oral studies of rats[RTECS] Causes burnsInhalation of aerosol may cause pulmonary edema[ICSC] A skin and strong eye irritant[Alfa Aesar MSDS] See Potassium phosphate, tribasic, Potassium phosphate, dibasic, Potassium metaphosphate, and Pentapotassium triphosphate. |
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| 反応性グループ | Salts, Basic |
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| EPA Safer Chemical | Chemical: Tetrapotassium pyrophosphate |
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| Reactivity Profile |
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