Sulphanilic Acid

Product Description

Sulphanilic Acid (also spelled Sulfanilic Acid) is an aromatic amine sulfonic acid widely used in laboratory analysis, dye manufacturing, and various chemical industries. It appears as a white to off-white crystalline solid and is stable under normal conditions. Due to its unique chemical structure, it serves as a valuable intermediate in organic synthesis, azo dye production, and quantitative analysis.

In laboratories, Sulphanilic Acid is essential for the preparation of standard diazo reagents, nitrite determination, and educational experiments. Industrially, it plays a crucial role in the synthesis of dyes, optical brighteners, specialty chemicals, and food colorants.

Key Features

• Chemical Name: Sulphanilic Acid (4-Aminobenzenesulfonic Acid)
• Chemical Formula: C₆H₇NO₃S
• Molecular Weight: 173.19 g/mol
• CAS Number: 121-57-3
• Appearance: White to light gray crystalline powder
• Odor: Odorless
• Solubility: Slightly soluble in water; soluble in alkali solutions
• Purity: ≥99% (Analytical / Technical Grade)
• Melting Point: ~288°C (decomposes)

Applications

Laboratory & Research

• Used in the Griess reagent for detection and determination of nitrites.
• Acts as a standard intermediate in diazotization reactions.
• Applied in analytical chemistry as a calibration and testing reagent.
• Commonly used in teaching and demonstration experiments.

Industrial Uses

• Dye & Pigment Industry: Precursor for azo dyes, optical brighteners, and specialty colorants.
• Food Industry: Used in the production of certain food colorants (approved derivatives).
• Pharmaceuticals: Intermediate in the synthesis of sulfa drugs and related compounds.
• Chemical Industry: Used in the manufacture of optical brightening agents, cement additives, and specialty chemicals.

Safety & Handling

• Hazard: May cause irritation to eyes, skin, and respiratory system.
• Precautions: Use protective gloves, goggles, and laboratory clothing. Handle in a well-ventilated environment.
• Storage: Keep in a tightly closed container, in a cool and dry place, away from strong oxidizing agents.
• Disposal: Dispose of according to local chemical waste disposal regulations.

Why Choose Sulphanilic Acid from M/S Bright Scientific Co.?

• High-purity laboratory and industrial grade Sulphanilic Acid.
• Suitable for both research and large-scale industrial applications.
• Strict quality control ensures consistent performance.
• Competitive pricing and reliable nationwide delivery.
• Trusted supplier for academic, industrial, and pharmaceutical users in Bangladesh.

Price in Bangladesh

Available in 100 g, 500 g, 1 kg, 5 kg, and 25 kg packs.
Bulk discounts available for industrial and institutional users.

Contact Information

M/S Bright Scientific Co.
📞 Phone: 01711285976