Sodium diphosphate tetrabasic（CAS 1004291-85-3）：分子式 Na4P2O7、分子量 265.90；类别 有机化学品。
| CAS号 | 1004291-85-3 |
|---|---|
| 分子式 | Na4P2O7 |
| 分子量 | 265.90 |
| 熔点 | 1810 °F (NIOSH, 2024) |
| 应用领域 | 清洁剂、Absorbent、缓蚀剂、Thickening agent、乳化剂、螯合剂、Flocculating agent、蚀刻剂、用作water softener、洗涤剂、emulsifying agent、金属 cleaner、and 营养补充剂 |
| 类别 | Organic Chemicals |
登记用途：清洁剂、Absorbent、缓蚀剂、Thickening agent、乳化剂、螯合剂、Flocculating agent、蚀刻剂、用作water softener、洗涤剂、emulsifying agent、金属 cleaner、and 营养补充剂。
Sodium diphosphate tetrabasic 是一种以碳骨架为基础的有机化合物，登记 CAS 号为 1004291-85-3，分子式 Na4P2O7（分子量 265.90），归属于有机化学品大类化工原料。
登记 CAS 号：1004291-85-3
其分子式 Na4P2O7 由 4 个钠、2 个磷、7 个氧 组成。
别名/同义词：Sodium diphosphate tetrabasic · TETRASODIUM PYROPHOSPHATE
所属分类：有机化学品
Sodium diphosphate tetrabasic 的 CAS 登记号为 1004291-85-3。
分子式 Na4P2O7，分子量 265.90。
别名/同义词：Sodium diphosphate tetrabasic、TETRASODIUM PYROPHOSPHATE。
登记用途：清洁剂、Absorbent、缓蚀剂、Thickening agent、乳化剂、螯合剂、Flocculating agent、蚀刻剂、用作water softener、洗涤剂、emulsifying agent、金属 cleaner、and 营养补充剂。
所属分类：Organic Chemicals。
Sodium diphosphate tetrabasic（CAS 1004291-85-3）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 1004291-85-3 |
|---|---|
| PubChem CID | 24403 |
| Molecular formula | Na4P2O7 |
| IUPAC name | tetrasodium;phosphonato phosphate |
| UNII (FDA) | O352864B8Z |
| Molecular Weight | 265.90 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 0 |
| Exact Mass | 265.87100346 |
| Monoisotopic Mass | 265.87100346 |
| Topological Polar Surface Area | 136 |
| Heavy Atom Count | 13 |
| Melting Point | 1810 °F (NIOSH, 2024) |
|---|---|
| Melting Point | 988 °C |
| Melting Point | 993 °C |
| Melting Point | 1810 °F |
| Solubility | 7 % at 77 °F (NIOSH, 2024) |
| Solubility | (77 °F): 7% |
| Density | 2.534 |
| Density | 2.534 @25 °C |
| Density | 2.45 |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
Sodium pyrophosphate; TETRASODIUM PYROPHOSPHATE; 7722-88-5; TSPP; Tetrasodium diphosphate; Phosphotex; Diphosphoric acid, tetrasodium salt; Sodium diphosphate; Victor TSPP; Natrium pyrophosphat; Sodium diphosphate, anhydrous; Pyrophosphoric acid tetrasodium salt; Sodium phosphate (Na4P2O7); Sodium diphosphate (Na4P2O7); Sodium pyrophosphate, tetrabasic; DTXSID9042465
| Regulatory & Food Contact | FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ACIDITY_REGULATOR; EMULSIFIER; SEQUESTRANT: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION AID, HUMECTANT, Group MTDI for phosphorus from all sources, expressed as P TRS 683-JECFA 26/25 |
|---|---|
| GHS notification summary | 6.2% (95 / 1523) |
| GHS notification summary | 6.2% (95 / 1523) |
|---|---|
| Reported hazard statements | H302 (51.1%), H315 (13.1%), H318 (49.6%), H319 (44.2%), H335 (11.7%), H312 (100%), H332 (100%), H413 (100%) |
This chemical does not meet GHS hazard criteria for 6.2% (95 of 1523) of reports.
H302 (51.1%): Harmful if swallowed [Warning Acute toxicity, oral]
Sodium diphosphate tetrabasic · CAS 1004291-85-3 · Na4P2O7. UNII O352864B8Z. Melting Point: 1810 °F (NIOSH, 2024); Melting Point: 988 °C; Melting Point: 993 °C.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Sodium diphosphate tetrabasic