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| Product Name: | Potassium pyrophosphate | Other Name: | Diphosphoric acid,potassium salt (1:4);Pyrophosphoric acid,tetrapotassium salt;Diphosphoric acid,tetrapotassium salt;Phosphosol;Potassium pyrophosphate;Tetrapotassium pyrophosphate;Tetrakalium pyrophosphate;Tetrapotassium diphosphate;Potassium phosphate (K4P2O7);Potassium diphosphate (K4P2O7);E 450v;Potassium metaphosphate oxide (K4(PO3)2O);1174512-44-7;1269628-81-0;2223678-13-3 |
| CAS No.: | 7320-34-5 | Molecular Formula: | H4O7P2.4K |
| InChIKeys: | InChIKey=SVUBBMULKFSENH-UHFFFAOYSA-N | Molecular Weight: | 330.336522 |
| Exact Mass: | 329.767 | EC Number: | 230-785-7 |
| UNII: | B9W4019H5G | ICSC Number: | 0983 |
| UN Number: | 3288 | DSSTox ID: | DTXSID3036446 |
| HScode: | 28353990 | Categories: | Acidity Regulators |
| PSA: | 136 | XLogP3: | 0.94120 |
| Appearance: | White Powder | Density: | 2.33 |
| Melting Point: | 1090 °C | Boiling Point: | 1500″>>1500 |
| Water Solubility: | H2O: soluble | Storage Conditions: | Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture. |
| Toxicity: | 4640mg/kg”>LD50 skin in rabbit: > 4640mg/kg | PH: | Between 10,0 and 10,8 (1 % solution) |
| Air and Water Reactions: | Soluble in water. | Reactive Group: | Salts, Basic |
| Reactivity Profile: | Salts, basic, such as POTASSIUM TETRAPYRO PHOSPHATE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH’s greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. |
Classification of the substance or mixture
Eye irritation, Category 2
GHS label elements, including precautionary statements
| Pictogram(s) |  |
|---|---|
| Signal word |
Warning |
| Hazard statement(s) |
H319 Causes serious eye irritation |
| Precautionary statement(s) | |
| Prevention |
P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/… |
| Response |
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong acids. Dry.