Potassium Phosphate Monobasic
Chemical Name: Potassium Phosphate Monobasic
CAS NO.: 7778-77-0
Appearance: White transparent powder
Molecular Formula: H2KO4P
Molecular weight: 136.085541
Sample: Available
Monobasic potassium phosphate with industrial grade features minimum 99% purity and presents as odorless white crystalline powder. The compound owns a melting point of 252.6℃ and boiling point exceeding 450℃ under regular pressure. It carries low vapor pressure at room temperature and features 2.34 relative density under 20℃ environment. The raw material dissolves easily in water while showing no solubility in ethanol materials. This chemical compound holds hygroscopic property, maintains stable status in regular air conditions, and turns into melting status once heated up to 400℃.
Parameters
| Item | Specification |
| Melting point | 252.6 °C (lit.) |
| Boiling point | > 450 °C |
| bulk density | 1200kg/m3 |
| density | 2.338 g/mL at 25 °C (lit.) |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.4864 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1.5 M at 20 °C, clear, colorless |
| form | powder |
| color | White transparent |
| Specific Gravity | 2.338 |
| Odor | Odorless |
| PH | 4.2-4.6 (20g/l, H2O, 20℃) |
| pka | (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃) |
| biological source | rabbit |
| Water Solubility | 222 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: 0.046 λ: 280 nm Amax: 0.040 |
| Decomposition | 253 °C |
| Sensitive | Hygroscopic |
| Merck | 14,7659 |
| Specific Activity | 25-33nmol/min·mg |
| Stability | Hygroscopic |
| InChIKey | GNSKLFRGEWLPPA-UHFFFAOYSA-M |
| CAS DataBase Reference | 7778-77-0(CAS DataBase Reference) |
| EPA Substance Registry System | Monopotassium phosphate (7778-77-0) |
| Absorption | ≤0.01 at 260nm ≤0.01 at 280nm |
Safety Information
| Item | Details |
| Hazard Codes | |
| RTECS | TC6615500 |
| HS Code | 2835240000 |
| Hazardous Substances Data | 7778-77-0(Hazardous Substances Data) |
| Toxicity | LD50 skin in rabbit: > 4640mg/kg |
Product Application of Potassium Phosphate Monobasic 7778-77-0
This substance serves as essential phosphorus supplement for livestock and poultry feed production. Within food processing industry, it gets widely adopted in baked food manufacturing, acting as dough leavening component, taste improving agent, fermentation auxiliary material, nutrition enhancement ingredient and yeast culture nutrient. It also acts as common buffering substance and chelating reagent in multiple industrial fields.
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