799343
Sodium metabisulfite
anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99%
Synonym(s):
Sodium disulfite, Sodium pyrosulfite
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About This Item
Linear Formula:
Na2S2O5
CAS Number:
Molecular Weight:
190.11
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-673-0
MDL number:
Assay:
≥99%
Grade:
anhydrous
Form:
powder
grade
anhydrous
Quality Segment
product line
ReagentPlus®, Redi-Dri™
assay
≥99%
form
powder
quality
free-flowing
mp
>300 °C (lit.)
SMILES string
[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key
HRZFUMHJMZEROT-UHFFFAOYSA-L
General description
Redi-Dri™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri™ saves you time, energy and money by keeping your salts usable for longer!
Features and Benefits
- Increased efficiency – Eliminate time and effort of loosening hardened powders
- Safety – Avoid risks of using tools of force to break up clumps
- Economy – Faster preparation and solvation increase productivity and reduce costs
- Assured quality – Excellent, expert-tested quality with no anti-caking agents
- Flexible volumes – Available from research amounts to scale-up quantities
Other Notes
As a solid, this product is sodium metabisulfite, Na2S2O5. Dissolved in water, it yields NaHSO3.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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Hazard Codes
Signal Word
Danger
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
supp_hazards
Storage Class
11 - Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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