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Heat-Resistant Grade Lactic Acid (Premium) is a high-purity biodegradable organic acid designed for superior thermal stability. It maintains structural integrity at elevated temperatures, making it ideal for food processing, pharmaceutical formulations, and industrial applications requiring enhanced heat resistance.
Product Overview
Heat-resistant grade lactic acid (premium) is a high-purity lactic acid produced using modern fermentation and refining technologies, with corn starch or corn stalks as raw materials. This product is a colorless, clear, viscous liquid with a mildly acidic taste, capable of absorbing moisture. Its aqueous solution exhibits acidic reactions and is easily mixed with water, ethanol, or ether. Lactic acid is a naturally occurring hydroxycarboxylic acid with excellent acidity and biodegradability, widely applied in various industrial fields.
Product Features
- High Purity:Lactic acid content can be adjusted according to customer requirements, ensuring suitability for different applications.
- Good Solubility:Easily mixes with water, ethanol, and ether, demonstrating excellent solubility and versatility.
- Excellent Stability:The product has good stability, making it suitable for a wide range of industrial and food applications.
Applications
- Food Industry:Used in the production of meat, vegetable pickling, beverages, brewing, dairy products, pasta products, and candies. It helps adjust pH, prevent microbial growth, enhance flavor, and extend shelf life.
- Pharmaceutical Industry:Used as a chiral intermediate, and polylactic acid (PLA) as a biodegradable medical material, widely applied in sutures, bone fracture fixation devices, and more.
- Industrial Applications:Lactic acid is used as a complexing agent in chemical nickel plating, a synthetic agent in paints and coatings, and as a component in cleaning agents. It is widely used in leather, textiles, tobacco, and beverage industries.
| Test Item | Specification | Remark |
| Acidic in aqueous solution | Positive reaction with lactate salt | Identification test |
| Lactic acid content (w/%) | 95.0-105.0 of marked value | Qualified |
| L-Lactic acid content (w/%) | ≥98.0 | Qualified |
| Ash residue (w/%) | ≤0.01 | Qualified |
| Chlorides (as Cl) (w/%) | ≤0.001 | Qualified |
| Sulfates (as SO4) (w/%) | ≤0.001 | Qualified |
| Iron salts (as Fe) (w/%) | ≤0.0001 | Qualified |
| Cyanides (mg/kg) | ≤1.0 | Qualified |
| Citric acid, oxalic acid, phosphoric acid, tartaric acid | Pass test | Qualified |
| Reducing sugars | Pass test | Qualified |
| Easily carbonized compounds | Pass test | Qualified |
| Lead (Pb) (mg/kg) | ≤0.5 | Qualified |
| Arsenic (As) (mg/kg) | ≤1.0 | Qualified |
| Color (APHA) | ≤10 | Qualified |
| Heated color (180℃ 2 hours) (APHA) | ≤10 | Qualified |
| Mercury (Hg) (mg/kg) | ≤1 | Qualified |
| Volatile fatty acids | Pass test | Qualified |
| Methanol (w/%) | ≤0.20 | Qualified |
| Heavy metals (as Pb) (mg/kg) | ≤5 | Qualified |
| Ether-insoluble substances | Pass test | Qualified |
| Calcium salts (mg/kg) | ≤1 | Qualified |
| Density (20℃) (g/ml) | 1.200-1.220 | Qualified |
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