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Merck

1.06639

Sodium sulfate

anhydrous granulated for organic trace analysis EMSURE®

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This item can only be ordered on the Merck Millipore website.

About This Item

Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-820-9
NACRES:
NA.21
Assay:
≥99.0% (acidimetric)
Form:
solid
Solubility:
200 g/L

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Quality Level

product line

EMSURE®

Assay

≥99.0% (acidimetric)

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

loss

≤ 0.5% loss on drying, 130 °C

pH

5.2-8.0 (20 °C, 50 g/L in H2O)

mp

884 °C (lit.)

solubility

200 g/L

density

2.68 g/mL at 25 °C (lit.)

bulk density

1400‑1600 kg/m3

cation traces

Fe: ≤0.001%

storage temp.

2-30°C

SMILES string

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

InChI

1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI key

PMZURENOXWZQFD-UHFFFAOYSA-L

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1 of 4

This Item
1.066371.06649239313
form

solid

form

solid

form

solid

form

granular

solubility

200 g/L

solubility

200 g/L

solubility

-

solubility

-

assay

≥99.0% (acidimetric)

assay

≥99.0% (acidimetric)

assay

≥99.0% (alkalimetric), 98.5-101% dry basis (alkalimetric)

assay

≥99.0%

Quality Level

300

Quality Level

300

Quality Level

300

Quality Level

200

density

2.68 g/mL at 25 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

cation traces

Fe: ≤0.001%

cation traces

As: ≤0.0001%, Ca: ≤0.01%, Fe: ≤0.0005%, K: ≤0.002%, Mg: ≤0.001%, N: ≤0.0005%, heavy metals (as Pb): ≤0.0005%

cation traces

As: ≤0.0001%, Ca: ≤0.005%, Fe: ≤0.0005%, K: ≤0.002%, Mg: ≤0.001%, N: ≤0.0005%, heavy metals: ≤0.0005%, heavy metals (as Pb): ≤0.0005%

cation traces

Ca: ≤0.01%, Fe: ≤0.001%, K: ≤0.01%, Mg: ≤0.005%, heavy metals: ≤5 ppm (by ICP-OES)

Analysis Note

Appearance: small crystals
Assay (acidimetric): ≥ 99.0 %
Fe (Iron): ≤ 0.001 %
Loss on drying (130 °C): ≤ 0.5 %

Legal Information

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names


Certificates of Analysis (COA)

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