Sodium sulfite (CAS 7757-83-7) — formula Na2O3S, molecular weight 125.94 g/mol; category fine chemicals.
| CAS Number | 7757-83-7 |
|---|---|
| Molecular Formula | Na2O3S |
| Molecular Weight | 125.94 g/mol |
| Melting Point | 911 °C |
| LogP | -4 |
| Packaging | 25/50kg woven bags, 20/25/50kg fibre drums, 200kg plastic drums, 1000kg IBC (subject to order confirmation) |
| Category | Basic Chemical Raw Materials|Antioxidants|Bleaching Agents |
Sodium sulfite is a high-value fine compound with CAS registry number 7757-83-7 and molecular formula Na2O3S (molecular weight 125.94 g/mol), belonging to the fine chemicals segment of chemical raw materials.
CAS number: 7757-83-7
Its molecular formula Na2O3S comprises 2 Na, 3 O, 1 S atoms.
Also known as: Sodium sulfite · 无水亚硫酸钠 · Sodium Sulphite Food Grade
Category: fine chemicals / food additives / chemical
The CAS registry number of Sodium sulfite is 7757-83-7.
Molecular formula Na2O3S, molecular weight 125.94 g/mol.
It is also registered under: Sodium sulfite, 无水亚硫酸钠, Sodium Sulphite Food Grade.
Category: Basic Chemical Raw Materials / Antioxidants / Bleaching Agents.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Sodium sulfite (CAS 7757-83-7), compiled from public chemistry databases.
| CAS Number | 7757-83-7 |
|---|---|
| PubChem CID | 24437 |
| Molecular Formula | Na2O3S |
| Molecular Weight | 125.94 g/mol |
| IUPAC Name | disodium;sulfite |
| InChIKey | GEHJYWRUCIMESM-UHFFFAOYSA-L |
| UNII (FDA) | VTK01UQK3G |
| Molecular Weight | 126.05 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 125.93635360 |
| Monoisotopic Mass | 125.93635360 |
| Topological Polar Surface Area | 82.4 |
| Heavy Atom Count | 6 |
| Melting Point | 911 °C |
|---|---|
| Melting Point | >500 °C |
| Density | 2.63 g/cu cm |
| Density | 2.63 g/cm³ |
| Density | 2.633 @25 °C |
| LogP | -4 |
| Decomposition | 600 °C |
SODIUM SULFITE; 7757-83-7; Disodium sulfite; Sodium sulfite anhydrous; Sodium sulphite; Sulfurous acid, disodium salt; Natrium sulfurosum; Sulftech; Natriumsulfid; Natriumsulfit; S-WAT; Natrii sulphis; Anhydrous sodium sulfite; Sodium sulfite (Na2SO3); Exsiccated sodium sulfite; Natrum sulphurosum
| GHS notifications | 24.9% (618 / 2482) |
|---|
| GHS notifications | 24.9% (618 / 2482) |
|---|---|
| Notified hazard statements | H302 (18.3%), H314 (51.8%), H315 (19.3%), H319 (21%), H318 |
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 无水亚硫酸钠