71640
Sodium phosphate dibasic
Manufacturer: Sigma Aldrich
CAS Number: 7558-79-4
Synonym(S): sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 250 G | 71640-250-G | In Stock | ₹ 4,016.08 |
| 1 KG | 71640-1-KG | In Stock | ₹ 12,178.13 |
| 5 KG | 71640-5-KG | In Stock | ₹ 39,965.90 |
71640 - 250 G
In Stock
Quantity
1
Base Price: ₹ 4,016.08
GST (18%): ₹ 722.894
Total Price: ₹ 4,738.974
grade
ACS reagentpuriss. p.a.
Quality Level
200
Assay
≥99.0% (T)
form
powder (or crystals)
impurities
≤0.001% total nitrogen (N)
loss
≤0.2% loss on drying, 105 °C
pH
8.7-9.3 (25 °C, 50 mg/mL in H2O)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
anion traces
chloride (Cl-): ≤10 mg/kgsulfate (SO42-): ≤50 mg/kg
cation traces
Ca: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kgheavy metals: ≤0.001% (by ICP-OES)
Other Options
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Description
- General description: Sodium phosphate dibasic is a sodium salt of phosphoric acid. It is highly hygroscopic and water-soluble compound used as a texturizer, emulsifier, and buffer. It can also be used as a reagent in water softeners, cleaners, and boiler treatments process.
- Application: Sodium phosphate dibasic can be used:As an efficient and low-cost catalyst for the synthesis of 2-aminochrome by the reaction between aromatic aldehyde, malononitrile, and α- or β-naphthol under solvent-free conditions.As a buffer in the synthesis of cyclic, acyclic enones and α, β-unsaturated aldehydes from trimethylsilyl enol ethers by using palladium as a catalyst and oxone as oxidant.As an efficient catalyst in the synthesis of 3,4-dihydropyrano[3,2-c] chromenes from aldehydes, malononitrile and 4-hydroxycoumarin.As a phosphorous precursor with the phosphoric acid in the synthesis of hydroxyapatite by precipitation method using anionic surfactant SDS (sodium dodefcyl sulfate).
SAFETY INFORMATION
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable