MilliporeSigma
All Photos(1)

71959

Sigma-Aldrich

Sodium sulfate

BioUltra, anhydrous, ≥99.0% (T)

Synonym(s):
Disodium sulfate, Sodium sulphate, Sulfuric acid disodium salt
Linear Formula:
Na2SO4
CAS Number:
Molecular Weight:
142.04
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.26

grade

anhydrous

product line

BioUltra

Assay

≥99.0% (T)

form

powder or crystals

impurities

insoluble matter, passes filter test
≤0.0005% total nitrogen (N)

loss

≤0.2% loss on ignition, 900 °C

pH

5.0-7.5 (25 °C, 1 M in H2O)

mp

884 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

density

2.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤20 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Li: ≤5 mg/kg
Mg: ≤20 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.020
λ: 280 nm Amax: 0.018

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

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

1 of 4

This Item
S65471.9363571963
Sodium sulfate BioUltra, anhydrous, ≥99.0% (T)

Sigma-Aldrich

71959

Sodium sulfate

Sodium sulfate BioXtra, ≥99.0%

Sigma-Aldrich

S6547

Sodium sulfate

Sodium sulfate anhydrous, for analysis EMPLURA®

Supelco

1.93635

Sodium sulfate

Sodium sulfate tested according to Ph. Eur., anhydrous

Sigma-Aldrich

71963

Sodium sulfate

grade

anhydrous

grade

-

grade

anhydrous

grade

anhydrous

assay

≥99.0% (T)

assay

≥99.0%

assay

-

assay

99.5% dry basis

form

powder or crystals

form

powder

form

-

form

crystalline

impurities

insoluble matter, passes filter test, ≤0.0005% total nitrogen (N)

impurities

≤0.0005% Phosphorus (P), ≤0.01% Insoluble matter

impurities

-

impurities

-

pH

5.0-7.5 (25 °C, 1 M in H2O)

pH

-

pH

-

pH

-

mp

884 °C (lit.)

mp

884 °C (lit.)

mp

884 °C (lit.)

mp

884 °C (lit.)

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (Example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service