Product Description
Our USP 99.7% Glycerine (CAS#56-81-5) is premium pharmaceutical-grade glycerin manufactured to meet strict USP monograph standards. Its 99.7% minimum purity, low ash, low heavy metals and outstanding stability make it a versatile choice for a wide range of industrial applications, from pharmaceutical excipients and skincare formulations to food, plasticizers, lubricants and chemical intermediates.
We are a direct factory supplier, cutting extra intermediate costs to bring you high-quality glycerine with competitive pricing advantages. Equipped with independent quality control laboratories and mature production systems, we strictly test every lot before release. We keep ensuring excellent value, reliable quality, and stable supply from our professional manufacturing facilities. Whether you need trial orders or bulk long-term contracts, we can tailor packing and delivery plans to match your requirements.
Properties
| Melting point | 20°C(lit.) |
| Boiling point | 290℃ |
| Density | 1.25 g/mL(lit.) |
| Vapor density | 3.1 (vs air) |
| Vapor pressure | <1 mm Hg (20°C) |
| FEMA | 2525 | GLYCEROL |
| Refractive index | n20/D 1.474(lit.) |
| Flash point | 320 °F |
| Storage conditions | Store at +5°C to +30°C |
| Solubility | H2O: 5 M ,20°℃, Clear, colorless |
| Acidity coefficient (pKa) | 14.15(at 25°℃) |
| Form | viscous liquid |
| Color | APHA: <10 |
| Specific gravity | 1.265 (15/15℃)1.262 |
| Odor | Tasteless |
| pH value | 5.5-8 (25°℃, 5M in H2O) |
| Acid-base indicator color change pH range | 5.5-8 |
| Fragrance | odorless |
| Biological origin | synthetic (organic) |
| Explosive limit | 2.6-11.3%6(V) |
| Water solubility | >500 g/L (20 °C) |
| Thermal conductivity | 0.285 W/(m.K) at 25 ℃ |
| Maximum wavelength (λmax) | λ: 260 nm Amax: 0.05 λ: 280 nm Amax: 0.04 |
| Sensitivity | Hygroscopic |
| Merck | 144,484 |
| JECFA Number | 909 |
| BRN | 635685 |
| Henry's Law Constant | 4.7×106 mol/(m3Pa) at 25°℃, Burkholder et al. (2019) |
| Exposure Limit | OSHA: TWA 15 mg/m3; TWA 5 mg/m3 |
| Dielectric Constant | 47.0 (Ambient) |
| Stability | Stable. Incompatible with perchloric acid, lead oxide, acetic anhydride, nitrobenzene, chlorine, peroxides, strong acids, and strong bases. Flammable. |
Product Application
USP 99.7% Glycerine (CAS#56-81-5), widely utilized across various industries due to its excellent versatility, purity, and safety profile, serves as a humectant and emollient in pharmaceuticals and cosmetics for creams, lotions, soaps, and toothpaste to maintain moisture, improve skin hydration and enhance product smoothness, functions as an FDA-approved sweetener, thickener, and preservative in the food and beverage industry to improve texture while maintaining product safety, is added into personal care products including shampoos, conditioners, and deodorants to boost moisture retention, product stability and overall performance, acts as a chemical intermediate for resins, lubricants, and polyols as well as a raw material for environmentally friendly antifreeze formulations in industrial applications, and can be used as a stabilizer and moisture-retaining agent in medical formulations thanks to its high purity and consistent quality.
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