SX0723

Sodium phosphate dibasic

anhydrous, HPLC, Meets ACS Specifications

• 동의어(들): Disodium Hydrogen Phosphate, Anhydrous, Disodium Hydrogen Phosphate, sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
• Linear Formula: Na₂HPO₄
• CAS Number: 7558-79-4
• Molecular Weight: 141.96
• MDL number: MFCD00003496
• UNSPSC 코드: 12352302
• EC 인덱스 번호: 231-448-7
• 분석: ≥99.0%
• 양식: crystalline powder
• solubility: 77 g/L

속성

• Quality Level: 200
• 분석: ≥99.0%
• 양식: crystalline powder
• 기술: HPLC: suitable
• 불순물: ≤0.01% Insoluble matter
• 손실: ≤0.2% loss on drying
• pH: 8.7-9.3 (20 °C, 10 g/L in H₂O)
• pKa(25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 250 °C (decomposition)
• solubility: 77 g/L
• 음이온 미량물: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.005%
• 양이온 미량물: Fe: ≤0.002%; heavy metals (as Pb): ≤0.001%
• UV 흡수: λ: 280 nm A_max: ≤0.05
• 배송 상태: ambient
• 저장 온도: room temp
• SMILES string: [Na+].[Na+].[H]OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI key: BNIILDVGGAEEIG-UHFFFAOYSA-L

설명

애플리케이션

anhydrous, HPLC, Meets ACS Specifications

분석 메모

Assay99.0% minChloride (Cl)0.002% maxFormWhite crystalline powderHeavy metals (as Pb)0.001% maxInsoluble matter0.01% maxIron (Fe)0.002% maxLoss on drying0.2% maxSulfate (SO4)0.005% maxUV Absorbance (1 M, water, 280 nm)0.05AU maxpH of a 5% solution at 25°C8.7-9.3

안전성 정보

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable