Ammonium Persulfate (APS) Ammonium peroxydisulfate - 25 000g

Chemical Formula: (NH4)2S2O8(NH_4)_2S_2O_8(NH4)2S2O8
Molar Mass: 228.20 g/mol
CAS Number: 7727-54-0

Ammonium persulfate is a white, crystalline, odorless inorganic compound. It is a strong oxidizing agent widely used in various industrial, chemical, and laboratory applications. Its high reactivity and ability to release free radicals make it a valuable compound in polymerization, etching, and cleaning processes.

Physical and Chemical Properties

• Appearance: White, crystalline powder or granules.
• Solubility: Highly soluble in water, forming an acidic solution.
• Decomposition Temperature: Approximately 120°C (248°F).
• Odor: Odorless.
• Density: 1.98 g/cm³.
• pH: ~1-2 (1% aqueous solution).
• Reactivity: Strong oxidizer; reacts with organic materials and reducing agents.

Applications

Ammonium persulfate is a versatile chemical with diverse uses across industries.

1. Polymer Industry

• Initiator in Polymerization: Used as a radical initiator for the polymerization of monomers such as acrylics, styrene, and vinyl acetate in the production of plastics, adhesives, and coatings.
• Synthetic Rubber Production: Acts as a curing agent in the manufacture of synthetic rubbers.

2. Electronics and Metal Processing

• Etching Agent: Used in the electronics industry for etching printed circuit boards (PCBs) and cleaning metal surfaces.
• Metal Treatment: Applied in processes like pickling and passivation to remove oxide layers from metals and enhance surface properties.

3. Cleaning and Bleaching

• Textile Industry: Serves as a bleaching and cleaning agent in fabric processing.
• Paper Industry: Used for bleaching pulp during paper manufacturing.

4. Laboratory Applications

• Oxidizing Agent: Commonly used in analytical chemistry and laboratory experiments for oxidation reactions.
• Electrophoresis: Plays a role in the preparation of polyacrylamide gels for protein and nucleic acid separation.

Benefits and Functional Properties

• Strong Oxidizer: Provides high reactivity for various industrial processes.
• Thermal Stability: Stable under dry conditions, allowing for safe storage and transport.
• Radical Generation: Efficiently generates free radicals in solution, crucial for polymerization and chemical reactions.

SAFETY:

Signal Word Danger

Hazard Statements May intensify fire; oxidizer Harmful if swallowed Causes skin irritation Causes serious eye irritation May cause an allergic skin reaction May cause allergy or asthma symptoms or breathing difficulties if inhaled May cause respiratory irritation

Precautionary Statements Prevention Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Wear protective gloves/protective clothing/eye protection/face protection Avoid breathing dust/fume/gas/mist/vapors/spray In case of inadequate ventilation wear respiratory protection Contaminated work clothing should not be allowed out of the workplace Use only outdoors or in a well-ventilated area Keep away from heat/sparks/open flames/hot surfaces. - No smoking Keep/Store away from clothing/ other combustible materials Take any precaution to avoid mixing with combustibles Inhalation If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing Skin IF ON SKIN: Wash with plenty of soap and water Take off contaminated clothing and wash before reuse If skin irritation or rash occurs: Get medical advice/attention Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. ContinuerinsingIf eye irritation persists: Get medical advice/attention Ingestion IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell Rinse mouth Fire In case of fire: Use CO2, dry chemical, or foam for extinction Storage Store in a well-ventilated place. Keep container tightly closed Store locked up Disposal Dispose of contents/container to an approved waste disposal plant Hazards not otherwise classified (HNOC) None identified

Environmental Considerations

• Decomposition: Breaks down into sulfate and ammonium ions in water, which are less harmful but require controlled use to avoid excessive nutrient loads in ecosystems.
• Disposal: Must be disposed of in accordance with local regulations to prevent environmental contamination.