31448
Sodium metabisulfite
Manufacturer: Sigma Aldrich
CAS Number: 7681-57-4
Synonym(S): Sodium disulfite, Sodium pyrosulfite
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 500 G | 31448-500-G | In Stock | ₹ 3,440.00 |
| 1 KG | 31448-1-KG | In Stock | ₹ 5,477.45 |
| 2.5 KG | 31448-2.5-KG | In Stock | ₹ 12,091.53 |
| 6 X 2.5 KG | 31448-6-X-2.5-KG | In Stock | ₹ 55,878.65 |
31448 - 500 G
In Stock
Quantity
1
Base Price: ₹ 3,440.00
GST (18%): ₹ 619.20
Total Price: ₹ 4,059.20
grade
ACS reagentpuriss. p.a.
Quality Level
200
Agency
reag. Ph. Eur.
Assay
98-100.5%
form
powder
quality
dry
impurities
≤0.01% thiosulfate (S2O3)
pH
3.5-5.0 (20 °C, 5%)
mp
>300 °C (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg
Other Options
Related Products
Description
- General description: Sodium metabisulfite (MBS, Sodium disulfite) is an inorganic salt. It is the sodium salt of disulphurous (pyrosulfurous) acid. It is widely used in textile dyeing, photography and paper industry.[1] It is also commonly added to various food products and wines as a preservative.[2]
- Application: Sodium metabisulfite may be used as an initiator during the cross-linking polymerization of polybutadiene in the cores of the vesicle membranes.[3] It may be added as an antioxidant during the preparation of stock solutions of 6-hydroxydopamine in various studies.[4][5]
SAFETY INFORMATION
Pictograms
Signal Word
Danger
Hazard Statements
Precautionary Statements
P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
Supplementary Hazards
EUH031
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Compare Similar Items
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grade: ACS reagentpuriss. p.a.
Quality Level: 200
Agency: reag. Ph. Eur.
Assay: 98-100.5%
form: powder
quality: dry
impurities: ≤0.01% thiosulfate (S2O3)
pH: 3.5-5.0 (20 °C, 5%)
mp: >300 °C (lit.)
anion traces: chloride (Cl-): ≤50 mg/kg
grade:
ACS reagentpuriss. p.a.
Quality Level:
200
Agency:
reag. Ph. Eur.
Assay:
98-100.5%
form:
powder
quality:
dry
impurities:
≤0.01% thiosulfate (S2O3)
pH:
3.5-5.0 (20 °C, 5%)
mp:
>300 °C (lit.)
anion traces:
chloride (Cl-): ≤50 mg/kg
grade: puriss. p.a.
Quality Level: 100
Agency: USP/NFreag. Ph. Eur.
Assay: 98-100.0% (iodometric)
form: solid
quality: __
impurities: ≤0.001% heavy metals (as Pb)≤0.02% thiosulfate (S2O3)
pH: 9.0-10.5 (25 °C, 126 g/L)
mp: __
anion traces: chloride (Cl-): ≤50 mg/kg
grade:
puriss. p.a.
Quality Level:
100
Agency:
USP/NFreag. Ph. Eur.
Assay:
98-100.0% (iodometric)
form:
solid
quality:
__
impurities:
≤0.001% heavy metals (as Pb)≤0.02% thiosulfate (S2O3)
pH:
9.0-10.5 (25 °C, 126 g/L)
mp:
__
anion traces:
chloride (Cl-): ≤50 mg/kg
grade: puriss. p.a.
Quality Level: 100
Agency: USP/NFreag. Ph. Eur.
Assay: 98-100.0% (iodometric)
form: solid
quality: __
impurities: ≤0.001% heavy metals (as Pb)≤0.02% thiosulfate (S2O3)
pH: 9.0-10.5 (25 °C, 126 g/L)
mp: __
anion traces: chloride (Cl-): ≤50 mg/kg
grade:
puriss. p.a.
Quality Level:
100
Agency:
USP/NFreag. Ph. Eur.
Assay:
98-100.0% (iodometric)
form:
solid
quality:
__
impurities:
≤0.001% heavy metals (as Pb)≤0.02% thiosulfate (S2O3)
pH:
9.0-10.5 (25 °C, 126 g/L)
mp:
__
anion traces:
chloride (Cl-): ≤50 mg/kg
grade: ACS reagentpuriss. p.a.
Quality Level: 200
Agency: reag. ISO
Assay: ≥99.5%
form: powder or crystals
quality: __
impurities: __
pH: 9.0-9.6 (20 °C, 5%)
mp: __
anion traces: chloride (Cl-): ≤10 mg/kgphosphate (PO43-): ≤10 mg/kgsulfate (SO42-): ≤50 mg/kg
grade:
ACS reagentpuriss. p.a.
Quality Level:
200
Agency:
reag. ISO
Assay:
≥99.5%
form:
powder or crystals
quality:
__
impurities:
__
pH:
9.0-9.6 (20 °C, 5%)
mp:
__
anion traces:
chloride (Cl-): ≤10 mg/kgphosphate (PO43-): ≤10 mg/kgsulfate (SO42-): ≤50 mg/kg