Merck 106591 Tetra-Sodium DipHospate Decahydrate For Analysis Emsure® Acs Reag. pH Eur 500 gr

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LB.M.106591.0500

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Merck 106591 Tetra-Sodium DipHospate Decahydrate For Analysis Emsure® Acs Reag. pH Eur
Catalogue Number	106591
Replaces	SX0740-1
Synonyms	tetra-Sodium pyrophosphate, TSPP
Description	tetra-Sodium diphosphate decahydrate

Merck 106591 Tetra-Sodium DipHospate Decahydrate For Analysis Emsure® Acs Reag. pH Eur

Product Information
CAS number	13472-36-1
EC number	231-767-1
Grade	ACS,Reag. Ph Eur
Hill Formula	Na₄O₇P₂ * 10 H₂O
Chemical formula	Na₄P₂O₇ * 10 H₂O
Molar Mass	446.06 g/mol
HS Code	2835 39 00
Quality Level	MQ300

Physicochemical Information
Density	1.82 g/cm3 (20 °C)
Melting Point	988 °C (anhydrous substance)
pH value	9.5 - 10.5 (50 g/l, H₂O, 20 °C)
Bulk density	650 kg/m3
Solubility	60 g/l (anhydrous substance)

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H302: Harmful if swallowed. H318: Causes serious eye damage.
Precautionary Statement(s)	P280: Wear eye protection. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P313: Get medical advice/ attention.
Signal Word	Danger
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).

Safety Information
Hazard Symbols	Irritant Harmful
R Phrase	R 22-41 Harmful if swallowed.Risk of serious damage to eyes.
S Phrase	S 26-39 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.

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

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

Specifications
Assay (acidimetric)	99.0 - 103.0 %
Insoluble matter	≤ 0.01 %
pH-value (5 %; water, 25 °C)	9.5 - 10.5
Chloride (Cl)	≤ 0.001 %
Orthophosphate (PO4)	≤ 0.1 %
Sulfate (SO₄)	≤ 0.005 %
Total nitrogen (N)	≤ 0.001 %
Heavy metals (as Pb)	≤ 0.0005 %
Fe (Iron)	≤ 0.0005 %
K (Potassium)	≤ 0.005 %
Corresponds to ACS, Reag. Ph Eur

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