1.06559

Sodium phosphate dibasic

anhydrous for analysis particle size about 0.2-1 mm (~18-80 mesh ASTM) EMSURE^®

• 동의어(들): Sodium phosphate dibasic, di-Sodium hydrogen phosphate anhydrous, 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
• NACRES: NA.21

속성

• Grade: anhydrous
• Quality Level: 300
• 제품 라인: EMSURE^®
• 분석: ≥99.0% (acidimetric)
• 형태: solid
• 효능: >2000 mg/kg LD₅₀, oral (Rat)
• 손실: ≤0.2% loss on drying, 105 °C
• 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
• 벌크 밀도: 880 kg/m³
• 음이온 미량물: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.005%
• 양이온 미량물: Fe: ≤0.001%; K: ≤0.01%; N: ≤0.001%; heavy metals (as Pb): ≤0.001%
• 저장 온도: 2-30°C
• 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

분석 메모

Assay (acidimetric): ≥ 99.0 %
pH-value (5 %; water): 8.9 - 9.2
Chloride (Cl): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.01 %
Particle size (0.2 - 1 mm): about 90 %
Loss on Drying (105 °C): ≤ 0.2 %

법적 정보

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

안전성 정보

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