A Brief Introduction to Glycerin
Molecular Formula:C3H8O3
Molecular Weight:92.094
CAS No.:56-81-5
Appearance:Colorless, odorless, transparent, viscous liquid
What is Glycerin?
Glycerin, also known as Glycerol, is a colorless, odorless, non-toxic, sweet-tasting viscous liquid.Its applications are extremely wide-ranging, covering industries such as manufacturing, food, cosmetics, and pharmaceuticals.
Glycerin Classification
- By Application: Industrial grade (80%-95%), Cosmetic grade (≥99%), Food grade (≥99.5%), Pharmaceutical grade (≥99.9% USP).
- By Source: Plant-based (soybeans, palm oil, etc.); Animal-based (tallow, etc.); Synthetic method (propylene, etc.).
- By Refining Level: Crude glycerin (40%-80%), Virgin glycerin (80-88%), Refined glycerin (≥95%)
Why choose Highassay?
Highassay is a Glycerin supplier from China, offering liquid Glycerin of various concentrations and grades. You can purchase the Glycerin you need directly from us. Highassay’s Glycerin can be used in aqueous solution analysis, as a solvent, in gas flow meters and hydraulic press damping fluid, as a softener, a nutrient for antibiotic fermentation, a desiccant, a lubricant, in the pharmaceutical industry, in cosmetic formulation, in organic synthesis, and as a plasticizer. It dissolves in water in any proportion, and low-concentration Glycerin solutions can be used as a lubricant to moisturize the skin.
Applications of Glycerin
Highassay adheres to strict quality control (QC) to produce Glycerin. Buy Glycerin in bulk from us now to get competitive market prices.
Industrial-Grade GlycerinIndustrial-grade Glycerin generally has a wide range of purity, and its price increases with higher purity. It can be used to produce industrial solvents, antifreeze, lubricants, and other products.
Cosmetic-Grade GlycerinCosmetic-grade Glycerin holds a very high position in the cosmetics, skincare, and personal care products industry because its moisturizing, hydrating, and anti-inflammatory effects, which surpass those of other ingredients, are irreplaceable.
Food-Grade GlycerinFood-grade Glycerin is added to many types of food. Highassay’s Glycerin has obtained food-grade certification, so please feel free to purchase and use it.
Pharmaceutical-Grade GlycerinPharmaceutical-grade Glycerin has strict requirements for purity and impurities. Highassay’s Glycerin complies with multiple pharmacopoeias, such as CP, USP, and EP. We look forward to your inquiry.
Cosmetic-Grade Glycerin
- Glycerin soap: Due to its high Glycerin content and special manufacturing process, Glycerin soap retains the nutritional components of natural Glycerin. Compared to ordinary soap, Glycerin soap made with a low-temperature process has a higher moisturizing effect, stronger cleaning power, and also has anti-inflammatory and antibacterial properties.
- Glycerin is an important ingredient in many skincare products. Because of its natural and safe origin, it can be mixed with other ingredients. Besides extending the shelf life of products, it can also promote the healing of minor skin wounds. However, these advantages pale in comparison to its moisturizing properties. Glycerin’s high status in skincare products stems from its strong hygroscopic properties. When applied to the skin’s surface, it not only locks in the skin’s own moisture but also absorbs moisture from the air, achieving a moisturizing effect.Such as: Glycerin moisturizing cream, Glycerin hydrating cream, etc.
- Glycerin can keep hair soft and moisturized. Therefore, when choosing products, you can opt for those containing Glycerin, or use pure Glycerin to make your own, such as mixing pure Glycerin with rose water and diluting it before using it with shampoo and conditioner, or adding it to a spray bottle as a moisturizing mist.
Food-Grade Glycerin
- Food-grade Glycerin can be added to various foods as a humectant to help retain moisture, especially in baked goods such as bread, making the food softer and improving its texture.
- Food-grade Glycerin can be used as a thickener, added to beverages, jams, wines and other products to increase the product’s thickness and improve its smoothness.
- Food-grade Glycerin can be used as a sweetener in food because it has a low sweetness and low calories, and is often used as a sugar substitute.
- There is no difference in the use of food-grade Glycerin from plant and animal sources, but plant-based glycerin is more suitable for vegetarians, religious groups, and other groups.
Pharmaceutical-Grade Glycerin
- Pharmaceutical-grade Glycerin has a laxative effect and can be used to aid in bowel movements through preparations such as Glycerin suppositories, Glycerin enemas, and oral solutions.
- High concentrations of Pharmaceutical-grade Glycerin can be administered orally or by injection to reduce intracranial pressure (for treating brain herniation, etc.) and intraocular pressure (for treating glaucoma).
- Pharmaceutical-grade Glycerin can be used as a drug excipient (solvent or matrix) to help various drugs release their effects stably or enhance drug permeability.
- Pharmaceutical-grade Glycerin can be used as a lubricant, especially essential during the examination of certain body parts with instruments, to reduce damage to the body from the instruments.
- Pharmaceutical-grade Glycerin can be used to produce Glycerin eye drops, but it should be noted that as a prescription drug, it cannot be used for daily eye care. It is a drug specifically for postoperative or medical situations.
Specification of Glycerin
- Specification of Glycerin
| Items | Standards | Results |
| Appearance | Transparent, No. suspended solid | Conforms |
| Color (Hazen) | <10 | 5 |
| Glycerine content % | >99.5 | 99.91 |
| Relative density (g/ml) | >1.2623 | >1.2623 |
| Chloride % | <0.001 | <0.001 |
| Sulfate ash % | <0.01 | 0.0026 |
| Acidity or alkalinity (ml 0.1N NaOH/25g) | <0.1 | 0.012 |
| Saponification value (mmol/100g) | <1 | 0.22 |
| Arsenic (mg/kg) | <2 | <2 |
| Heavy metal(mg/kg) | <5 | <5 |
| Conclusion | Complying with USP | |
Nitroglycerin is a trinitrate ester of Glycerol. It is a highly explosive substance and can also be used medically as a vasodilator.
Vegetable Glycerin at appropriate concentrations is relatively safe for dogs, but please consult a veterinarian before using it for your pet’s benefit. Avoid giving your dog Glycerin or Glycerin-containing foods without professional guidance, especially if your dog has diabetes.
Pure Glycerin is a relative term referring to highly purified Glycerin. Pure Glycerin should not be applied directly to the skin; it must be diluted before use, otherwise it can cause increased dryness.
Regarding Glycerin Suppositories
Glycerin suppositories are used once daily or for short-term periods. They should not be used long-term to avoid disrupting bodily functions. Glycerin suppositories are primarily used to treat acute or occasional constipation in the elderly. If you suffer from chronic constipation, it is recommended that you seek medical help or change your diet and lifestyle habits. Glycerin suppositories work by softening and lubricating stool to facilitate its expulsion; they can also stimulate rectal contractions to trigger the defecation reflex.
Infant Glycerin suppositories should not be used without a doctor’s instructions. They are generally used to treat severe constipation in infants.
