Glacial Acetic Acid 99.85% Food Grade (E260 / INS 260)

Glacial Acetic Acid 99.85% (GAA) Tech Grade – Essential Industrial Chemical

Glacial Acetic Acid 99.85% (GAA) Tech Grade is an indispensable basic chemical and organic solvent originating from China. Featuring the chemical formula CH₃COOH and an ultra-high assay of ≥ 99.85%, it presents as a clear, colorless liquid with a potent, pungent vinegar odor. Unique for its freezing property below 16.2°C (forming ice-like crystals), this Technical Grade acid serves as a fundamental building block across crucial industries including textile dyeing, natural rubber coagulation, VAM synthesis, and wastewater pH regulation.

Commercial Technical Reference & Specifications (Commercial Specs)

Key Technological Properties & Mechanisms

• Exceptional 99.85% Purity (Glacial Characteristic): The extremely low water content enables the high concentration of acid to crystallize into solid, clear ice-like formations at temperatures below 16.2°C. This distinct physical property guarantees the high purity standard of the "Glacial" variant.
• Organic Acid Profile & Corrosion: Functioning as a versatile monoprotic carboxylic acid, it offers natural buffering capability. It gently adjusts pH environments without causing sudden shocks or structural damage to sensitive fibers (like cotton or wool). While highly corrosive to metals like iron or zinc (releasing hydrogen), it forms a safe passive layer with aluminum.
• Strong Polar Solvent: Infinitely miscible with water and alcohols, providing an optimal solvent base for esterification and oxidation processes in adhesive, film, and fertilizer production.

Practical Industrial Applications

Supplying robust Technical Grade quality, Glacial Acetic Acid 99.85% empowers diverse manufacturing workflows:

• Textile Dyeing & Wet Processing: Acts as an essential neutralizer for residual alkalis after scouring. It safely regulates dyebath pH to ensure uniform, deep dye uptake on natural and synthetic fibers without diminishing fiber strength.
• Natural Rubber Latex Coagulation: Utilized as a controlled coagulant, maintaining even and rapid latex coagulation while preserving natural structural elasticity.
• VAM & Organic Ester Synthesis: Crucial raw material precursor in the manufacture of Vinyl Acetate Monomers (VAM) for PVAc adhesives, EVA polymers, and various industrial esters (Ethyl Acetate, Butyl Acetate) for paints and inks.
• Wastewater Treatment & Agrochemicals: Regulates alkaline wastewater and provides organic carbon for biological treatment processes; acts as an intermediary solvent for agrochemical and descaling formulations.

Safe Handling & Storage Guidelines (UN 2789)

• Personal Protective Equipment (PPE): Due to its dual hazard nature, operators must wear comprehensive protection including chemical-resistant gloves, a full-face respirator, and safety goggles. Adequate ventilation is required.
• Mandatory Dilution Protocol: Always exercise the rule of slowly pouring acid into water while stirring. Never pour water directly into concentrated acid, as extreme exothermic boiling can cause severe splashing and chemical burns.
• Storage Conditions: Store in compatible containers such as HDPE drums or SUS 316 stainless steel tanks. Keep away from ignition sources and strong oxidizing agents. Thaw frozen acid gently with warm water, completely avoiding open flames.

Supply Policy for Glacial Acetic Acid at THP Chemical

Tan Hung Phu Chemical Co., Ltd. (THP Chemical) operates as an established distributor of Glacial Acetic Acid 99.85% Tech Grade, extending fully reliable commercial service terms:

• Delivers verified industrial purity standards ensuring a minimum 99.85% concentration.
• Full provision of batch-specific Certificates of Analysis (COA) and comprehensive Material Safety Data Sheets (MSDS).
• Versatile packaging configurations available directly from inventory: 30 kg Carboys, 210 kg Drums, and 1050 kg IBC Tanks to suit any operational scale.
• Expedited, secure nationwide delivery via our robust logistics hub and specialized warehouse facilities in Ho Chi Minh City.

Frequently Asked Questions (FAQ)

1. Why is it termed "Glacial"?

The term "Glacial" refers to the substance's tendency to crystallize and solidify into transparent ice-like forms at temperatures below approximately 16.2°C. Only highly pure acetic acid (>99.5%) exhibits this specific physical phenomenon.

2. What makes GAA preferable in textile dyeing?

As a mild organic acid, it gently buffers the dye bath pH without inducing the damaging thermal shock or structural fiber deterioration associated with harsh inorganic acids like sulfuric acid.

3. What materials are suitable for storage and piping?

GAA should be stored safely in HDPE, high-grade polymers, or SUS 316 stainless steel. Carbon steel or zinc containers must be avoided as they react to release flammable hydrogen gas.

4. Can this Technical Grade be used for culinary vinegar?

No. Technical Grade Glacial Acetic Acid is designated for industrial processing. It is not regulated by food safety standards. For food applications (like sauces or vinegar), please request our specialized Food Grade (E260) version.