Merck 106586 0500 Sodium Hydrogen Phosphate Anhydrous Gr For Analysis Acs 500 GR.

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Description
Catalogue Number	106586
Replaces	SX0720; SX0720-1; SX0720-5; SX0720-7; SX0720-20
Description	di-Sodium hydrogen phosphate

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Product Information
CAS number	7558-79-4
EC number	231-448-7
Grade	ACS,Reag. Ph Eur
Hill Formula	HNa₂O₄P
Chemical formula	Na₂HPO₄
Molar Mass	141.96 g/mol
HS Code	2835 22 00
Quality Level	MQ300

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Physicochemical Information
Density	1.53 g/cm3 (20 °C)
Melting Point	>450 °C (decomposition)
pH value	8.9 - 9.2 (50 g/l, H₂O, 25 °C)
Bulk density	880 kg/m3
Solubility	77 g/l

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

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Safety Information according to GHS
RTECS	WC4500000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	14\nInorganic 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).

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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	No Dangerous Good
Declaration (transport by sea) IMDG-Code	No Dangerous Good

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Specifications
Assay (alkalimetric)	≥ 99.0 %
Insoluble matter	≤ 0.01 %
pH-value (5 %; water, 25 °C)	8.7 - 9.3
Chloride (Cl)	≤ 0.002 %
Sulfate (SO₄)	≤ 0.005 %
Heavy metals (ACS)	≤ 0.001 %
Cu (Copper)	≤ 0.0003 %
Fe (Iron)	≤ 0.001 %
K (Potassium)	≤ 0.01 %
Pb (Lead)	≤ 0.001 %
Loss on Drying (105 °C)	≤ 0.2 %
Corresponds to ACS, Reag. Ph Eur