What is the purity of food grade acetic acid CAS 64-19-7?
CAS 64-19-7 Glacial Acetic Acid (Food Grade) is a colourless, volatile liquid with a pungent odour. It is primarily composed of acetic acid (CH₃COOH) at a high purity of ~99.7%. Manufactured to stringent food-grade specifications, it is suitable for direct use in food preservation, flavouring and acidity regulation. The typical assay range (99–100.5 wt%) is verified by titration with standardised NaOH, ensuring consistent acidity for process control in batch manufacturing. Its low impurity profile is confirmed by trace metals and inorganic ion analyses, aligning with HACCP-based quality programmes and USP/ACS expectations for food-grade acetic acid.
| Product Name | Food Grade Glacial Acetic Acid | ||
| Item | Unit | Qualification | Result |
| Appearance | Clear Colorless Liquid | Matched | |
| Glacial Acetic Acid Purity | ω/% | ≥99.5 | 99.8 |
| Potassium Permanganate Test | min | ≥30 | 35 |
| Evaporation Residue | ω/% | ≤0.005 | 0.002 |
| Crystallization Point | ℃ | ≥15.6 | 16.1 |
| The Ratio of Acetic Acid(natural degree) | /% | ≥95 | 95 |
| Heavy Metal(in Pb) | ω/% | ≤0.0002 | ＜0.0002 |
| Arsenic(in As) | ω/% | ≤0.0001 | ＜0.0001 |
| Free Mineral Acid Test | Qualified | Qualified | |
| Chromaticity/(Pt-Co Cobalt Scale /Hazen Unit) | ≤20 | 10 | |
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What is Food Grade Glacial Acetic Acid Used for?
- Flavoring: Imparts a sharp, tangy, sour taste to foods.
- Preservative (Acidulant): Lowers pH to prevent microbial growth and extends shelf life.
- pH Adjuster: Regulates acidity for texture, color and flavour.
- Coagulant: Curdles milk for making paneer and other cheeses.
- Vinegar Production: A key component for synthetic vinegar or adjusting the acidity of fermented vinegars.
Benefits of Food Grade Glacial Acetic Acid
High Purity Food-Grade Quality
– Meets or exceeds standard food-grade specifications ensuring suitability for direct food contact and formulation reliability.
Consistent Acidity and Low Impurities
– Titration-aligned assay (min 99%, typical 99.7%) with low heavy metals and inorganic ions support process control and regulatory compliance.
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