Sodium persulfateCAS#7775-27-1
Products Description of Sodium persulfateCAS#7775-27-1
Sodium persulfate, also known as sodium peroxydisulfate, is a white crystalline solid or crystalline powder. It is odorless and tasteless, with the chemical formula Na₂S₂O₈ and a relative molecular mass of 238.13.
It decomposes slowly at room temperature and rapidly when heated or dissolved in ethanol. Upon decomposition, it releases oxygen and forms sodium pyrosulfate. Moisture, as well as metal ions such as platinum black, silver, lead, iron, copper, magnesium, nickel, manganese, and their alloys, can accelerate its decomposition. At high temperatures (around 200℃), it decomposes quickly and releases hydrogen peroxide.
Highly soluble in water (solubility of 70.4 at 20℃), it exhibits strong oxidizing properties. It is highly irritating to the skin, and prolonged skin contact may cause allergies, so caution is required during handling. The oral LD50 in rats is 895mg/kg. It should be stored in a sealed container.
In the laboratory, sodium persulfate is prepared by heating ammonium persulfate with a solution of caustic soda (sodium hydroxide) or sodium carbonate, followed by the removal of ammonia and carbon dioxide.
Parameters
Melting point | 100 °C |
density | 2,4 g/cm3 |
bulk density | 1150kg/m3 |
vapor pressure | 0Pa at 25℃ |
refractive index | 1.43 |
storage temp. | Store at +15°C to +25°C. |
solubility | H2O: 1 M at 20 °C, clear, colorless |
form | Solid |
Specific Gravity | 2.4 |
color | White to yellow |
PH | 3.5-3.8 (100g/l, H2O, 20℃) |
Odor | Odorless |
PH Range | 2.5 - 4.0 |
Water Solubility | 550 g/L (20 ºC) |
Merck | 14,8656 |
Exposure limits | ACGIH: TWA 0.1 mg/m3 |
Stability: | Stability Unstable. Strong oxidizer. Contact with combustible material may cause fire. Incompatible with combustible material, strong reducing agents, strong bases, alcohols, aluminium, magnesium. Protect from moisture. |
InChIKey | CHQMHPLRPQMAMX-UHFFFAOYSA-L |
LogP | -1 at 20℃ |
CAS DataBase Reference | 7775-27-1(CAS DataBase Reference) |
EPA Substance Registry System | Sodium persulfate (7775-27-1) |
Absorption | cut-off at 309nm in H2O at 1M |
Safety Information
Hazard Codes | O,Xn |
Risk Statements | 8-22-42/43-36/37/38 |
Safety Statements | 22-36/37-45-36/37/39-26-17 |
RIDADR | UN 1505 5.1/PG 3 |
WGK Germany | 1 |
RTECS | SE0525000 |
TSCA | Yes |
HS Code | 2833 40 00 |
HazardClass | 5.1 |
PackingGroup | III |
Toxicity | MLD in rabbits (mg/kg): 178 i.v. (DaVal) |
Products Description of Sodium persulfateCAS#7775-27-1
Oxidation, Inorganic Compounds and Salts, Inorganic Salts, Organic Chemistry, Oxidants, Other Inorganic Substances, Sulfates, Chemical Industry, Organic Chemical Raw Materials, Additives 1, Packaged Products, Inorganic Chemical Raw Materials, Carboxylic Acids, Sodium, Sulfates, Inorganic Chemicals (Chemicalbook), Inorganics, Synthetic Reagents, Other Biochemical Reagents, Specialty Reagents, Biochemical Reagents, Inorganic Acids, Chemical Raw Materials, Sodium Persulfate, Inorganic Chemical Products, Inorganic Substances, Organic Raw Materials
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