一水碳酸钠

Description

Sodium Carbonate Monohydrate · CAS 5968-11-6 · Na2CO3.H2O. UNII 2A1Q1Q3557. European Pharmacopoeia monograph. Melting Point: 851 °C; Density: 2.53 @25 °C.

Identification

CAS Registry Number	5968-11-6
PubChem CID	2735133
Molecular formula	Na2CO3.H2O
IUPAC name	disodium;carbonate;hydrate
UNII (FDA)	2A1Q1Q3557
Pharmacopoeial monograph	European Pharmacopoeia monograph

Computed Descriptors

Molecular Weight	124.00
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	123.97484710
Monoisotopic Mass	123.97484710
Topological Polar Surface Area	64.2
Heavy Atom Count	7
Formal Charge	0
Complexity	18.8

Physical & Chemical Properties

Melting Point	851 °C
Density	2.53 @25 °C

Physical description & handling notes

• Odorless solid; [Merck Index] Colorless to white odorless powder or granules; Hygroscopic; [Alfa Aesar MSDS]

Regulatory Status

GHS notification summary	2.3% (5 / 219)

GHS Hazard Classification

GHS notification summary	2.3% (5 / 219)
Reported hazard statements	H319 (97.7%)

Documented Uses

• Used to make sodium salts, glass, and soap; Also used for washing and bleaching textiles and softening water; Other applications are in photography, analytical chemistry (standard for acid-base titrimetry), pharmaceuticals (alkalizer), and veterinary medicine (emetic and skin cleanser/softener); [Merck Index]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Photographic Processing [Category: Other]
• Glass Manufacturing [Category: Industry]
• EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives
• Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern

Synonyms

SODIUM CARBONATE MONOHYDRATE; Sodium carbonate, monohydrate; disodium;carbonate;hydrate; 2A1Q1Q3557; Carbonic acid sodium salt (1:2), hydrate (1:1); DTXSID40208366; SODIUM CARBONATE MONOHYDRATE [II]; SODIUM CARBONATE MONOHYDRATE [MI]; SODIUM CARBONATE MONOHYDRATE [MART.]; SODIUM CARBONATE MONOHYDRATE [WHO-DD]; SODIUM CARBONATE MONOHYDRATE [EP MONOGRAPH]; SODIUM CARBONATE MONOHYDRATE (II); SODIUM CARBONATE MONOHYDRATE (MART.); SODIUM CARBONATE MONOHYDRATE (EP MONOGRAPH); RefChem:887388; DTXCID60130857

Frequently Asked Questions

What are the CAS number and molecular formula of Sodium Carbonate Monohydrate?

CAS 5968-11-6; molecular formula Na2CO3.H2O; molecular weight — g/mol.

What other names is Sodium Carbonate Monohydrate known by?

SODIUM CARBONATE MONOHYDRATE, Sodium carbonate, monohydrate, disodium;carbonate;hydrate, 2A1Q1Q3557, Carbonic acid sodium salt (1:2), hydrate (1:1), DTXSID40208366.

Is Sodium Carbonate Monohydrate classified as hazardous?

2.3% of GHS notifications report no hazard classification (5 of 219).

Does Sodium Carbonate Monohydrate have a pharmacopoeial monograph?

Yes — a monograph exists in the European Pharmacopoeia (Ph. Eur.).

What are the key physical properties of Sodium Carbonate Monohydrate?

Melting Point: 851 °C; Density: 2.53 @25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.