Skip to the beginning of the images gallery

Sodium pyrosulfite - 99.99%, high purity , CAS No.7681-57-4

6 Citations

PrimorTrace™

≥99.99% metals basis

CAS#: 7681-57-4
Formula: Na₂S₂O₅
Molecular Weight: 190.11
EC Number: 231-673-0
MDL number: MFCD00167602
PubChem CID: 656671

Item Number

S492009

Grouped product items
SKU	Size	Availability	Price	Qty
S492009-100g	100g	In stock	$14.90
S492009-500g	500g	In stock	$56.90

Basic Description

Synonyms	Sodium metabisulfite \| 7681-57-4 \| Sodium pyrosulfite \| Sodium disulfite \| Disodium pyrosulfite \| Sodium metabisulphite \| Disulfurous acid, disodium salt \| Disodium disulphite \| Natrii disulfis \| Campden Tablets \| Disodium metabisulfite \| Disodium disulfite \| Natrium pyrosulfit \|
Specifications & Purity	PrimorTrace™, ≥99.99% metals basis
Storage Temp	Argon charged
Shipped In	Normal
Grade	PrimorTrace™
Product Description	Product Describtion: Sodium metabisulfite (MBS, Sodium disulfite) is the sodium salt of disulphurous (pyrosulfurous) acid. It is also commonly added to various food products and wines as a preservative.

Names and Identifiers

INCHI	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
Canonical SMILES	[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
Isomeric SMILES	[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
WGK Germany	1
RTECS	UX8225000
PubChem CID	656671
UN Number	1759
Packing Group	I
Molecular Weight	190.11

Certificates

Certificate of Analysis(COA)

Enter Lot Number to search for COA:

Find and download the COA for your product by matching the lot number on the packaging.

14 results found

Lot Number	Certificate Type	Date	Item
J2209465	Certificate of Analysis	Oct 26, 2022	S492009
J2209502	Certificate of Analysis	Oct 26, 2022	S492009
C2406038	Certificate of Analysis	Oct 26, 2022	S492009
G2314164	Certificate of Analysis	Oct 26, 2022	S492009
G2415350	Certificate of Analysis	Oct 26, 2022	S492009
I2405013	Certificate of Analysis	Oct 26, 2022	S492009
J2209504	Certificate of Analysis	Oct 26, 2022	S492009
J2317134	Certificate of Analysis	Oct 26, 2022	S492009
A2404343	Certificate of Analysis	Oct 13, 2022	S492009
D2312226	Certificate of Analysis	Oct 13, 2022	S492009
F2330045	Certificate of Analysis	Oct 13, 2022	S492009
H2318064	Certificate of Analysis	Oct 13, 2022	S492009
J2209499	Certificate of Analysis	Oct 13, 2022	S492009
J2317135	Certificate of Analysis	Oct 13, 2022	S492009

Show more⌵

Solubility

Freely soluble in water, glycerol. Slightly soluble in alcohol

Sensitivity

Sensitive to humidity and air

Boil Point(°C)

150°C

Melt Point(°C)

>300 °C

Safety and Hazards(GHS)

Pictogram(s)	GHS05, GHS07
Signal	Danger
Hazard Statements	H302:Harmful if swallowed H318:Causes serious eye damage H402:Harmful to aquatic life
Precautionary Statements	P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P501:Dispose of contents/container to ... P264:Wash hands [and …] thoroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312+P330:IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth.
WGK Germany	1
RTECS	UX8225000
Class	8

Citations of This Product

1. Zhao Haitao, Bian Guoqing, Xu Xiang, He Weiwei, Zhang Lifen, Cheng Zhenping. (2023) Persistent radical anion of perylene dianhydride: an emerging metal-free photocatalyst for near-infrared photocontrolled RAFT polymerization. Science China-Chemistry, (7): (1-10). [PMID:16710300]
2. Shi-Long Xu, Peng Yin, Lu-Jie Zuo, Shi-Yi Yin, Yue Lin, Wanqun Zhang, Sheng-Qi Chu, Hai-Wei Liang, Xian-Zhu Fu. (2023) Scalable Synthesis of Low-Pt PtCu3 Intermetallic Oxygen Reduction Electrocatalysts via Sulfur-Containing Inorganic Salt-Assisted Strategy. ACS Sustainable Chemistry & Engineering, 11 (32): (12093–12101). [PMID:]
3. Zhenhui Bai, ZhengQi Wang, Jie Jia, Dequn Wu, Xueli Wang, Jianyong Yu, Ruchao Yuan, Faxue Li. (2023) A highly thermostable flame retardant for poly(ethylene terephthalate) and its fabric with satisfactory comprehensive flame retardancy. POLYMER, 283 (126194). [PMID:]
4. Shihua Mai, Yue Ma, Hongsheng Liu, Chao Li, Yuqing Song, Kaizhen Hu, Xinyan Chen, Ying Chen, Wei Zou. (2023) Dynamic Modulation of SO2 Atmosphere for Enhanced Fresh-Keeping of Grapes Using a Novel Starch-Based Biodegradable Foam Packaging. Foods, 12 (11): (2222). [PMID:37297469]
5. Sha Cheng, Cheng Huang, Wen Chen, Pengchao Zhang. (2023) Directional Superspreading of Water Droplets on Grooved Hydrogel Surfaces for Open Microfluidic Platforms. Small Methods, (2300221). [PMID:37254259]
6. Guoguang Chen, Yaxin Zhou, Jie Dai, Shiyu Yan, Wenjun Miao, Lili Ren. (2022) Calcium alginate/PNIPAAm hydrogel with body temperature response and great biocompatibility: Application as burn wound dressing. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 216 (686). [PMID:35817237]

References

1. Zhao Haitao, Bian Guoqing, Xu Xiang, He Weiwei, Zhang Lifen, Cheng Zhenping. (2023) Persistent radical anion of perylene dianhydride: an emerging metal-free photocatalyst for near-infrared photocontrolled RAFT polymerization. Science China-Chemistry, (7): (1-10). [PMID:16710300]
2. Shi-Long Xu, Peng Yin, Lu-Jie Zuo, Shi-Yi Yin, Yue Lin, Wanqun Zhang, Sheng-Qi Chu, Hai-Wei Liang, Xian-Zhu Fu. (2023) Scalable Synthesis of Low-Pt PtCu3 Intermetallic Oxygen Reduction Electrocatalysts via Sulfur-Containing Inorganic Salt-Assisted Strategy. ACS Sustainable Chemistry & Engineering, 11 (32): (12093–12101). [PMID:]
3. Zhenhui Bai, ZhengQi Wang, Jie Jia, Dequn Wu, Xueli Wang, Jianyong Yu, Ruchao Yuan, Faxue Li. (2023) A highly thermostable flame retardant for poly(ethylene terephthalate) and its fabric with satisfactory comprehensive flame retardancy. POLYMER, 283 (126194). [PMID:]
4. Shihua Mai, Yue Ma, Hongsheng Liu, Chao Li, Yuqing Song, Kaizhen Hu, Xinyan Chen, Ying Chen, Wei Zou. (2023) Dynamic Modulation of SO2 Atmosphere for Enhanced Fresh-Keeping of Grapes Using a Novel Starch-Based Biodegradable Foam Packaging. Foods, 12 (11): (2222). [PMID:37297469]
5. Sha Cheng, Cheng Huang, Wen Chen, Pengchao Zhang. (2023) Directional Superspreading of Water Droplets on Grooved Hydrogel Surfaces for Open Microfluidic Platforms. Small Methods, (2300221). [PMID:37254259]
6. Guoguang Chen, Yaxin Zhou, Jie Dai, Shiyu Yan, Wenjun Miao, Lili Ren. (2022) Calcium alginate/PNIPAAm hydrogel with body temperature response and great biocompatibility: Application as burn wound dressing. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 216 (686). [PMID:35817237]

Solution Calculators

Molarity Calculator

Determine the necessary mass, volume, or concentration for preparing a solution.

Dilution Calculator

Determine the dilution needed to prepare a stock solution.