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1.06591

Supelco

tetra-Sodium diphosphate decahydrate

for analysis EMSURE® ACS,Reag. Ph Eur

Synonym(s):

tetra-Sodium diphosphate decahydrate, tetra-Sodium pyrophosphate, TSPP

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About This Item

Empirical Formula (Hill Notation):
Na4O7P2 · 10H2O
CAS Number:
Molecular Weight:
446.06
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-767-1
NACRES:
NA.21

grade

ACS reagent

Quality Level

Agency

reag. Ph. Eur.

product line

EMSURE®

Assay

99.0-103.0% (acidimetric)

form

solid

impurities

≤0.001% Total nitrogen (N)
≤0.01% Insoluble matter

pH

9.5-10.5 (20 °C, 50 g/L in H2O)

mp

988 °C (anhydrous substance)

density

1.82 g/cm3 at 20 °C

bulk density

650 kg/m3

anion traces

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.1%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.0005%
K: ≤0.005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

InChI

1S/4Na.H4O7P2.10H2O/c;;;;1-8(2,3)7-9(4,5)6;;;;;;;;;;/h;;;;(H2,1,2,3)(H2,4,5,6);10*1H2/q4*+1;;;;;;;;;;;/p-4

InChI key

VZWGHDYJGOMEKT-UHFFFAOYSA-J

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Related Categories

Linkage

Replaces: SX0740-1

Analysis Note

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

Legal Information

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

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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