29 - Phenol Sulfonic Acid || HSN:29081990

HSN Code 29081990 (Other phenol and phenol-alcohols, including phenol sulfonic acid)

Category Industrial Chemicals

Subcategory Organic Acids / Chemical Intermediates

• Assay: 65–75% (acidimetric)

• Form: Liquid

• Color: Red to brown

• Odor: Aromatic/phenolic

• pH: 1 (50 g/L at 20°C)

• Solubility: Highly soluble in water

Chemical Properties

• Molecular Formula: C6H6O4S

• Molecular Weight: 174.17 g/mol

• Main Components: Ortho and para isomers of phenol sulfonic acid

• Reactivity: Strong acid, reacts exothermically with bases to form salts

• Stability: Stable under recommended storage; hygroscopic

• Incompatibility: Strong oxidizers

Physical Properties

• Density: 1.33–1.44 g/cm³ (20°C)

• Melting Point: ~0°C (65% solution)

• Boiling Point: ~275°C (rough estimate)

• Appearance: Clear to red-brown liquid

• Viscosity: Moderate (varies by concentration)

• Storage: Store below +30°C, in tightly sealed containers

Manufacturing Methods

• Sulfonation: Direct sulfonation of phenol with concentrated sulfuric acid under controlled temperature and agitation.

• Purification: Removal of unreacted phenol and by-products.

• Quality Control: Acidimetric assay, color, and impurity profiling to meet industrial standards.

• Packaging: Filled into corrosion-resistant drums or IBCs under strict safety protocols.

Industrial Uses

• Catalyst in phenolic and amino resin production

• Intermediate in dye and pharmaceutical synthesis

• Surfactant and detergent manufacturing

• Additive in water treatment chemicals

• Stabilizer in petroleum industry

• Component in plasticizers and specialty polymers

Market Overview: Global Demand & Indian Supply

• Global Demand: Steadily increasing due to expansion in resin, dye, and surfactant industries. Widely used in Asia, Europe, and North America.

• Indian Supply: India is a major producer and exporter, known for consistent quality and competitive pricing. Indian manufacturers supply to leading chemical, pharmaceutical, and water treatment companies worldwide.

Packaging & Logistics

• Standard Packaging: 250 kg HDPE drums, 1,000 kg IBC tanks, or bulk ISO tanks

• Shipping Dimensions & Weight:

• 250 kg drum: ~60 cm diameter x 90 cm height
• 1,000 kg IBC: ~120 cm x 100 cm x 116 cm

• Bulk Packaging: Available for large volume orders

• Labeling: UN-compliant, hazard labeling as per international regulations

• Storage: Store in cool, dry, well-ventilated area, away from incompatible materials

• Logistics: Shipped as hazardous chemical under IMDG/ADR/IATA guidelines

• Lead Time: 1–2 weeks for standard export orders

Preferred INCO Terms

• FOB (Free On Board)

• CFR (Cost and Freight)

• CIF (Cost, Insurance, and Freight)