CAS 127-09-3 Sodium acetate - Materials / Alfa Chemistry

NAVIGATION

Sodium acetate

PRICE INQUIRY

Catalog Number

ACM127093

CAS Number

127-09-3

Product Name

Sodium acetate

Structure

Category

Solution Deposition Precursors

Synonyms

acetic acid sodium salt;MAGGRAN(R) NA;Acetic acid,sodium salt;Natriumacetat;Mettler-Toledo Calibration substance

Description

Sodium Acetate is used in the textile industry to neutralize sulfuric acid waste streams, and as a photoresist while using aniline dyes. Sodium Acetate may be added to foods as a seasoning.

IUPAC Name

sodium; acetate

Molecular Weight

82.03

Molecular Formula

C2H3NaO2

Canonical SMILES

CC(=O) [O-].[Na+]

InChI

InChI=1S/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1

InChI Key

VMHLLURERBWHNL-UHFFFAOYSA-M

Melting Point

58ºC

Flash Point

40ºC

Density

1.45

Solubility

WATER: 119 G/100 ML @ 0 °C, 170.15 G/100 ML @ 100 °C; SLIGHTLY SOL IN ALCOHOL;SOLUBILITY IN WATER: 1 G/ML;Slightly soluble in alcohol; insoluble in ether;Solubility in water, g/100ml at 20 °C: 46.5

Appearance

White powder

Application

Sodium acetate serves multiple purposes across various industries due to its versatile nature. Primarily, it is used as a buffering agent to maintain consistent pH levels, particularly in the range of 3 to 6, which is essential for stabilizing the pH of certain foods. In the textile industry, sodium acetate is utilized to neutralize sulfuric acid waste streams and acts as a photoresist with aniline dyes, while in the synthetic rubber production, it helps retard vulcanization. For concrete, it functions as an effective and environmentally friendly sealant to protect against water damage. In the food industry, sodium acetate is often added as a seasoning, commonly in the form of sodium diacetate to provide a salt and vinegar flavor, for instance, to potato chips. Additionally, it's a key component in consumer heating pads or hand warmers, where it releases heat upon crystallization. The compound can also participate in chemical reactions, such as forming esters with alkyl halides, showing its broad applicability beyond fundamentals in pH buffering.

Color/Form

WHITE GRANULAR POWDER OR MONOCLINIC CRYSTALS;Colorless;White powder;CRYSTALLINE SOLID

Complexity

34.6

Covalently-Bonded Unit Count

EC Number

204-823-8

Exact Mass

82.003

Formal Charge

Heavy Atom Count

ICSC Number

0565

Log P

-1.24380

MDL Number

MFCD00012459

MeSH Entry Terms

Sodium Acetate;Sodium Acetate Trihydrate;Sodium Acetate, Anhydrous

Monoisotopic Mass

82.003

Odor

Odorless;Acetic acid odor

Other Experimental

HYGROSCOPIC;BECOMES ANHYD AT 120 °C, DECOMP AT HIGHER TEMP; PH OF 0.1 M AQ SOLN AT 25 °C IS 8.9; EFFLORESCENT IN WARM AIR. /SODIUM ACETATE TRIHYDRATE/;COLORLESS, TRANSPARENT CRYSTALS OR GRANULAR, CRYSTALLINE POWDER; ODORLESS OR HAS FAINT, ACETOUS ODOR. /SODIUM ACETATE TRIHYDRATE, USP/;SOL: 76.2 G/100 ML WATER AT 0 °C; 138.8 G/100 ML WATER @ 50 °C; 2.1 G/100 ML ALC AT 18 °C; SOL IN ETHER; INDEX OF REFRACTION: 1.464 (BETA); DENSITY 1.45 G/ML; MP 58 °C; COLORLESS MONOCLINIC PRISMS. /SODIUM ACETATE TRIHYDRATE/;In water, liberates 42.25% available acetic acid; it is bound compound of sodium acetate and acetic acid.;Acid component is, in a sense, acetic acid of crystallization and is known to be undissociated; hygroscopic.;Decomposition above 150 °C.

Refractive Index

1.464 (20ºC)

Rotatable Bond Count

Stability

Stable. Incompatible with strong oxidizing agents, halogens. Moisture sensitive.

Storage Conditions

2-8ºC

UNII

NVG71ZZ7P0

Vapor Pressure

13.9mmHg at 25°C

WGK Germany