Product name: Lactic Acid
CAS No.:50-21-5
Molecular formula: C3H6O3Molecular weight: 90.08
Synonym: 2‑Hydroxypropanoic acid
Appearance: Colorless to pale yellow clear viscous liquid
Odor: Slight acidic odorChem-physical Properties
Melting point 18 ℃
Boiling point 122 ℃(15 mmHg)
Density (20℃) 1.20‑1.22 g/cm³
Solubility Miscible with water, ethanol, glycerolpKa 3.86
Quality Specification
| Test Item | USP / Cosmetic Grade | Food Grade | Industrial Grade |
|---|---|---|---|
| Appearance | Colorless to pale‑yellow clear viscous liquid | Colorless to pale‑yellow clear viscous liquid | Pale‑yellow viscous liquid |
| Assay (C₃H₆O₃), % | 88.0‑92.0 | 80.0‑90.0 | 80.0‑85.0 |
| Color (Pt‑Co / APHA) ≤ | 50 | 50 | 100 |
| Density (20 ℃), g/cm³ | 1.20‑1.22 | 1.20‑1.22 | 1.18‑1.22 |
| Chloride, % ≤ | 0.005 | 0.01 | 0.01 |
| Sulfate, % ≤ | 0.01 | 0.01 | 0.02 |
| Residue on ignition, % ≤ | 0.10 | 0.10 | 0.20 |
| Heavy metals (Pb), ppm ≤ | 10 | 10 | — |
| Iron (Fe), ppm ≤ | 5 | 10 | — |
| Moisture | Balance | Balance | Balance |
Application & Use
Cosmetic: pH adjuster, humectant, exfoliating agent for skin‑care products.
Pharmaceutical: USP excipient, raw material for pharmaceutical synthesis.
Food: Acidity regulator, preservative.
Industrial: Raw material for PLA polylactic acid, water treatment, cleaning agent.
Packing
25 kg plastic drum; 250 kg PE drum; IBC tank 1000kg.
Storage & Transportation
‑ Store in cool, dry, well‑ventilated warehouse, keep tightly sealed.
‑ Separated from alkalis, oxidizing agents.
‑ General chemical goods transport. Avoid long‑term high‑temperature storage.
- Disclaimer: This data is for reference only, not binding specification.
chemical.tnj
+8618949823763
tnjchem
2881500864