di-Sodium hydrogen phosphate dihydrate

Name: di-Sodium hydrogen phosphate dihydrate
Brand: SIAL

BioXtra, ≥98.0% (T)

Synonym(s):

sec-Sodium phosphate, Disodium hydrogen phosphate dihydrate, Disodium phosphate, Sodium phosphate dibasic dihydrate

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About This Item

Linear Formula:

Na₂HPO₄ · 2H₂O

CAS Number:

10028-24-7

Molecular Weight:

177.99

EC Number:

231-448-7

MDL number:

MFCD00149182

UNSPSC Code:

12352209

PubChem Substance ID:

329763396

NACRES:

NA.26

Key Documents

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product line

BioXtra

Quality Level

300

Assay

≥98.0% (T)

form

crystals

loss

20-21% loss on drying

pH

8.8-9.4 (50 mg/mL in H₂O)

solubility

hot water: 0.5 g/10 mL, clear, colorless

anion traces

chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

O.O.[Na+].[Na+].OP([O-])([O-])=O

InChI

1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2

InChI key

KDQPSPMLNJTZAL-UHFFFAOYSA-L

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Related Categories

Biochemicals

Biological Buffers

Chemistry & Biochemicals

High-Purity Biochemicals and Reagents

Phosphates

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Show Differences

1 of 4

This Item	30435	04272	1.06580
Sigma-Aldrich 71645 di-Sodium hydrogen phosphate dihydrate	Sigma-Aldrich 30435 di-Sodium hydrogen phosphate dihydrate	Sigma-Aldrich 04272 di-Sodium hydrogen phosphate dihydrate	Supelco 1.06580 di-Sodium hydrogen phosphate dihydrate
assay ≥98.0% (T)	assay 98.5-101.0% (calc. to the dried substance)	assay 98.5-101% (calc. to the dried substance)	assay ≥99.5% (acidimetric)
Quality Level 300	Quality Level 200	Quality Level 200	Quality Level 300
product line BioXtra	product line -	product line -	product line EMSURE^®
form crystals	form crystals	form crystals	form solid
pH 8.8-9.4 (50 mg/mL in H₂O)	pH 9.0-9.2 (20 °C, 5%)	pH 9.0-9.4 (20 °C, 1%)	pH 9.0-9.2 (20 °C, 50 g/L in H₂O)
solubility hot water: 0.5 g/10 mL, clear, colorless	solubility -	solubility -	solubility 93 g/L

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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