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Sodium pyrosulfite

BGC Id:860132851994
CAS No:7681-57-4
Synonyms:sodium disulfite ; disodium metabisulfite ; sodium pyrosulfite ; fertisilo ; sodiummetabisufite ; sodium disulphite ; e223 ; sodium pyrosulphite ; natrium metabisulfurosum ; disodium disulfite ; natriummetabisulfit ; sodium dissulfite ; sodium pyrosulfit ; disodium pyrosulfite ; disodiumpyrosulphite ; disodium disulphite
Molecular Formula:2Na.O5S2
Molecular Weight:190.10
EINECS:231-673-0
Structural Formula

The most competitive supplier in 2025

The following notable provider has been checked and can be recommended.
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BuGuCh & Partners
Company type: Producer
Country: Germany
We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production site ...
The last intensive check and update was carried out on 2025/10/30.

Identify

Synonyms:
sodium disulfite ; disodium metabisulfite ; sodium pyrosulfite ; fertisilo ; sodiummetabisufite ; sodium disulphite ; e223 ; sodium pyrosulphite ; natrium metabisulfurosum ; disodium disulfite ; natriummetabisulfit ; sodium dissulfite ; sodium pyrosulfit ; disodium pyrosulfite ; disodiumpyrosulphite ; disodium disulphite
CAS:
7681-57-4
EINECS:
231-673-0
Molecular Formula:
2Na.O5S2
MDL:
MFCD00167602

Properties

Molecular Weight:
190.10 g·mol−1
Density:
1.48 g/cm3
Melting point:
>170 °C (begins at 150 °C)
Solubility:
water: 54 g/100 ml
Physical Description:
white crystalline powder with a sulfur smell

Safety Information

Hazard Symbols: Xn, Xi
hazard symbol Xn hazard symbol Xi
Europe standard Hazard pictograms, code and definition
Hazard Classes:
Risk Codes:
22-31-41-36/37/38-52 (R)
Safety Codes:
26-39-46-36 (S)
WGK Germany:
1
RID / ADR:
3260
RTECS:
UX8225000
Storage temperature:
Store at RT.

What other providers are available for CAS 7681-57-4?

In addition to the providers presented here for Sodium pyrosulfite with the CAS number 7681-57-4, there are other 136 providers with slightly different product names available for this CAS number.

+1 additional providers that we know from the past
BIOZOL Diagnostica Vertrieb GmbH +2 additional providers that we know from the past
Hädener Rohstoffe GmbH | Shandong Chuangying Chemical Co., Ltd. | VMP Chemiekontor GmbH | AXO Industry SA | Shanghai Mintchem Development Co., Ltd. | Simagchem Corporation | Sancai Industry Co.,Ltd. | Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd) | Hangzhou Zhongqi Chem Co., Ltd | Lori Industry Co., Ltd | Dayang Chem (Hangzhou) Co.,Ltd. | Carbone Scientific Co., Ltd. | Xingrui Industry Co., Limited | Xiamen Equation Chemical Co.,Ltd | Molekula GmbH | Leap Chem Co., Ltd | Skyrun Industrial Co., Ltd. | BuGuCh & Partners +97 additional providers that we know from the past
+2 additional providers that we know from the past
+2 additional providers that we know from the past
+1 additional providers that we know from the past
+2 additional providers that we know from the past




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