Citric Acid Monohydrate SQ (500g)

Citric Acid Monohydrate SQ (500g) is a premium, high-purity laboratory chemical manufactured by Thermo Fisher Scientific and supplied through Apex Labs. This Semi-Quantitative (SQ) grade citric acid ensures consistent quality, excellent stability, and high reliability for strict laboratory formulations. Widely utilized across research, clinical, and industrial laboratories for buffer preparation, pH adjustment, and cleaning workflows, it is packaged in a robust, tightly sealed 500g plastic container to safeguard the chemical against moisture absorption and clumping.

Product Specification & Direct Ordering

Technical Specifications

• Product Name & Brand: Citric Acid Monohydrate SQ | Qualigens (Thermo Fisher Scientific)
• Catalog Number / CAS: Cat No. Q22485 | CAS Number: 77-92-9
• Chemical Formula & MW: C_6H_8O_7 (Monohydrate form) | Molecular Weight: 192.12 g/mol
• Grade & Assay: Laboratory Grade / SQ (Semi-Quantitative); Assay 99.0%
• Appearance & Solubility: White crystalline powder or granular crystals; highly soluble in water (10% w/v solution is clear and colorless)
• Maximum Impurity Limits: Sulfated Ash 0.1%, Chloride (Cl)  0.005%, Sulphate (SO_4)  0.015%, Heavy Metals (Pb)  0.001%
• Pack Size & HSN Code: 500 g Moisture-Resistant Plastic Bottle | HSN Code: 29181400
• Storage & Safety: Store in a cool, dry, well-ventilated space. Keep container tightly sealed to protect against atmospheric moisture. Causes serious eye irritation.
• Supplier & Brand: Apex Labs (Authorized Distributor / Supplier)

Laboratory Chemicals & Reagents Range

Technical Material & Performance Highlights

• Trusted Brand Quality: Processed under rigorous quality compliance standards by Thermo Fisher Scientific under the premier Qualigens brand.
• High Purity (SQ Grade): Meets strict laboratory standards with a high assay profile ($\ge 99.0\%$ ), ensuring reliable performance in routine qualitative and quantitative testing.
• Rapid Dissolution: Dissolves quickly and completely in water, producing a clear, particulate-free acidic solution.
• Safe, Long-Term Packaging: Packed in an airtight, high-density plastic bottle that prevents caking and extends the shelf-life of the reagent.

Primary Sector Applications

• Buffer & Eluent Preparation: Essential for formulating citrate buffers used in chromatography (HPLC), biochemical assays, and molecular biology.
• pH Regulation: Used as a reliable, weak organic acid agent to safely lower and control the pH of laboratory solutions and media.
• Chelating & Complexing Agent: Widely utilized in analytical chemistry to sequester metal ions and prevent oxidation reactions.
• Equipment Cleaning & Decalcification: Highly effective for removing mineral scale, rust, and chemical residues from delicate laboratory instruments, glass chambers, and water baths.