Sodium Acetate CAS#127-09-3 Products Description
Sodium acetate (CH₃COONa), the sodium salt of acetic acid, is a colorless, hygroscopic crystalline compound with diverse applications across industrial, laboratory, and commercial sectors.
In textile processing, sodium acetate is used to neutralize sulfuric acid in wastewater streams and may function as a photoresist in processes involving aniline dyes. In the construction industry, it can be applied in concrete treatment formulations to help minimize moisture-related damage. In food processing, sodium acetate is commonly used as a seasoning and flavor-enhancing ingredient.
In laboratory settings, sodium acetate is widely employed as a buffering agent to help maintain stable pH conditions. Its thermal energy storage properties also make it a key material in reusable heating pads, hand warmers, and crystallization-based heat packs, often referred to as “hot ice.”
For laboratory preparation, sodium acetate can be obtained by reacting acetic acid with sodium carbonate, sodium bicarbonate, or sodium hydroxide. On an industrial scale, it is commonly produced through the neutralization of acetic acid with sodium hydroxide.
Sodium Acetate CAS#127-09-3 Chemical Properties
| Melting point | >300 °C (dec.)(lit.) |
| density | 1.01 g/mL at 20 °C |
| FEMA | 3024 | SODIUM ACETATE |
| refractive index | 1.464 |
| Fp | >250 °C |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 3 M at 20 °C, clear, colorless |
| pka | 4.756[at 20 ℃] |
| form | powder |
| color | white |
| Specific Gravity | 1.45 |
| Odor | Slight acetic acid |
| PH | 7.87(1 mM solution);8.33(10 mM solution);8.75(100 mM solution);9.04(1000 mM solution) |
| PH Range | 8.5 - 9.9 at 246 g/l at 25 °C |
| Odor Type | odorless |
| biological source | synthetic |
| Water Solubility | 500 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: 0.03 |
| λ: 280 nm Amax: 0.02 | |
| Sensitive | Hygroscopic |
| Hydrolytic Sensitivity | 0: forms stable aqueous solutions |
| Merck | 148571 |
| Boiling point | >400°C(decomposition) |
| BRN | 3595639 |
| Stability: | Stable. Incompatible with strong oxidizing agents, halogens. Moisture sensitive. |
| Cosmetics Ingredients Functions | BUFFERING |
| FRAGRANCE | |
| InChI | 1S/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1 |
| InChIKey | VMHLLURERBWHNL-UHFFFAOYSA-M |
| SMILES | [Na+].CC([O-])=O |
| LogP | -3.72 |
| CAS DataBase Reference | 127-09-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium ethanoate(127-09-3) |
| EPA Substance Registry System | Sodium acetate (127-09-3) |
| Absorption | ≤0.01 at 260nm in H2O at 100mM |
| ≤0.01 at 280nm in H2O at 100mM |
Sodium Acetate CAS#127-09-3 Safety Information
| Safety Statements | 22-24/25 |
| WGK Germany | 1 |
| RTECS | AJ4300010 |
| F | 3 |
| Autoignition Temperature | 607 °C |
| TSCA | TSCA listed |
| HS Code | 29152200 |
| Storage Class | 11 - Combustible Solids |
| Hazardous Substances Data | 127-09-3(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 3530 mg/kg LD50 dermal Rabbit > 10000 mg/kg |
Sodium Acetate CAS#127-09-3 Product Application
Sodium acetate has a wide range of industrial and commercial applications. It is commonly used as a mordant in textile dyeing and is also utilized in photography, food processing, glucose purification, meat preservation, leather tanning, and dehydration processes. In analytical chemistry, it plays an important role in preparing buffer solutions to help maintain stable pH levels.
In the food industry, sodium acetate serves as a preservative in processed meat products and is often combined with other organic acid salts, such as lactates and propionates, to improve preservation performance. The typical application rate is approximately 0.2%–0.5%, depending on the product formulation and applicable regulations. Sodium acetate is also used in a variety of food products, including salad dressings and ready-to-eat meals.
