Merck 119753 di-Sodium hydrogen phosphate dihydrate buffer substance for chromatography LiChropur® 250 gr

Category

Tuzlar

Brand

MERCK

Stock Code

LB.M.119753.0250

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Synonyms: Sodium monohydrogen phosphate, Sodium phosphate dibasic CAS Number: 10028-24-7 EC Number: 231-448-7 Molar Mass: 177.99 g/mol Chemical Formula: Na₂HPO₄ * 2 H₂O Hill Formula: HNa₂O₄P * 2 H₂O

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CAS Number: 10028-24-7

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Merck 119753

di-Sodium hydrogen phosphate dihydrate buffer substance for chromatography LiChropur^®

Description
Catalogue Number	119753
Synonyms	Sodium monohydrogen phosphate, Sodium phosphate dibasic
Description	di-Sodium hydrogen phosphate dihydrate

Product Information
CAS number	10028-24-7
EC number	231-448-7
Hill Formula	HNa₂O₄P * 2 H₂O
Chemical formula	Na₂HPO₄ * 2 H₂O
Molar Mass	177.99 g/mol
HS Code	2835 22 00
Quality Level	MQ100

Applications
Application	di-Sodium hydrogen phosphate dihydrate buffer substance for chromatography LiChropur®. CAS 10028-24-7, chemical formula Na₂HPO₄ * 2 H₂O.

Physicochemical Information
Density	2.1 g/cm3 (20 °C)
Melting Point	92.5 °C Elimination of water of crystallisation
pH value	9.0 - 9.4 (50 g/l, H₂O, 20 °C)
Bulk density	850 - 1000 kg/m3
Solubility	93 g/l

Toxicological Information
LD 50 oral	LD50 Rat > 2000 mg/kg

Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

Storage and Shipping Information
Storage	Store at +5 °C to +30 °C.

Specifications
Identity	passes test
pH-value (5 %; water)	9.0 - 9.2
Assay (acidimetric)	≥ 99.0 %
Self-absorption (215 nm; 0.2 mol/l; 1 cm; water)	≤ 0.15
Self-absorption (220 nm; 0.2 mol/l; 1 cm; water)	≤ 0.05
Self-absorption (254 nm; 0.2 mol/l; 1 cm; water)	≤ 0.02

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