Refined Glycerine 99.7% USP Wilmar (Wilfarin USP/BP/EP) – Pure Glycerol C₃H₈O₃ (250Kg Drum)
Refined Glycerine 99.7% (trade name: Wilfarin USP/BP/EP, chemical formula C₃H₈O₃, glycerol) is an ultra-pure liquid polyol manufactured by Wilmar International Ltd. Certified in full compliance with United States Pharmacopeia (USP 41), British Pharmacopoeia (BP), European Pharmacopoeia (EP), and international food additive standards (INS 422 / E422), it appears as a clear, colorless, transparent, odorless viscous liquid with a pleasant sweet taste. Featuring an active assay of minimum 99.7% Min (exceeding standard 99.5% grades) and strictly controlled diethylene glycol (DEG) and ethylene glycol (EG) limits (≤ 0.1%), this premium glycerine wilmar functions as an essential humectant, texturizer, and solvent across usp pharmaceutical glycerine syrups, cosmetic grade glycerin skincare emulsions, and food grade glycerol e422 confectionery. Supplied exclusively in heavy-duty refined glycerine 250kg drum packaging, it represents the premier choice for commercial processors looking to buy glycerine bulk with guaranteed specification compliance.
Technical Specification Standards – Wilfarin Refined Glycerine 99.7% Grade USP/BP/EP
| Technical Parameters & Identification | Guaranteed Technical Limits (Specification Values) |
|---|---|
| Commercial Product Name / Trade Name | Wilfarin Refined Glycerine 99.7% / Glycerol / 1,2,3-Propanetriol |
| Manufacturer / Brand | Wilmar International Ltd |
| Molecular Formula / Molecular Weight | C₃H₈O₃ (c3h8o3) | M = 92.09 g/mol |
| CAS Registry No. / Food Additive Code | CAS: 56-81-5 | INS 422 | E422 |
| Quality Grade Classification | Pharmaceutical USP / BP / EP & Food Grade E422 |
| Physical Appearance & Form | Transparent liquid, clear, colorless, odorless, sweet taste |
| Active Glycerin Content (Assay) | ≥ 99.7% Min |
| Moisture Content | ≤ 0.3% Max |
| Color (APHA) | ≤ 10 Max |
| Color (mL FeCl₃) | ≤ 0.4 Max |
| Specific Gravity (@ 25°C) | ≥ 1.2612 Min |
| Refractive Index RI (n20/D) | 1.470 – 1.475 |
| Residue On Ignition / Sulphated Ash | ≤ 0.01% Max |
| Acidity & Alkalinity | ≤ 0.2 mL 0.1M NaOH / 50 mL solution S Max |
| Esters Content | ≥ 8.0 mL 0.1M HCl / 50 mL solution S Min |
| Diethylene Glycol (DEG) | ≤ 0.1% Max (USP/BP/EP Safety Standard) |
| Ethylene Glycol (EG) | ≤ 0.1% Max (USP/BP/EP Safety Standard) |
| Identification IR, GC & Test B | Conforms to compendial standard (Passes test) |
| Sugar Test | Pass |
| Chloride | ≤ 10 ppm Max |
| Sulphates | ≤ 20 ppm Max |
| Heavy Metal | ≤ 5 ppm Max |
| Chlorinated Compounds | ≤ 30 ppm Max |
| Halogenated Compounds | ≤ 35 ppm Max |
| Aldehydes | ≤ 10 ppm Max |
| Fatty Acids and Esters | ≤ 1 mL of 0.5N NaOH / 50 g Max |
| Related Compounds | Individual Impurity ≤ 0.1% Max | Total Impurities ≤ 1.0% Max |
| Impurity A and related | Conform |
| Sole Commercial Packaging Format | 250 Kg Net Heavy-Duty Steel / Plastic Drums |
Chemical Dynamics & Key Technological Advantages
- Multi-Pharmacopeial Purity (USP 41 / BP / EP): Produced across Wilmar's advanced multi-stage vacuum fractionation refineries, Wilfarin Refined Glycerine 99.7% eliminates fatty acid residues, volatile odorants, and heavy metals. Stringent limits on toxic glycols (DEG ≤ 0.1%, EG ≤ 0.1%), verified heavy metal control (≤ 5 ppm), and confirmed passing of the sugar assay ensure complete clinical safety for pharmaceutical elixirs, topical creams, and ingestible food additives.
- High Humectant & Moisture-Locking Efficacy: Possessing three hydrophilic hydroxyl (-OH) functional groups per molecule, glycerine exhibits powerful hydrogen-bonding affinity for water molecules. It acts as an elite humectant that draws moisture from the ambient air, binds free water, and mitigates transepidermal water loss (TEWL) in skincare emulsions.
- Non-Toxic Biological Sweetener & Texturizer (E422): Serving as a natural, low-glycemic sweetening agent, food-grade glycerol provides approximately 60% of the sweetness of sucrose while resisting fermentation by oral bacteria. It depresses water activity (aw), inhibits sucrose recrystallization in confectioneries, and retains crumb softness in baked goods.
- Superior Optical Clarity & Color Stability (APHA ≤ 10): Featuring an ultra-low color rating (≤ 10 Hazen) and negligible residue on ignition (≤ 0.01%), it dissolves into a water-clear solution that will not alter the hue of crystal-clear cosmetic gels, transparent soaps, or pharmaceutical syrups.
Multi-Sector Practical Applications in Personal Care, Pharma & Food
Engineered for versatility and non-toxic performance, glycerine wilmar serves critical functional roles across major commercial industries:
- Cosmetics & Personal Care Formulations:
• Facial Creams, Moisturizers & Serums: The core hydrating active ingredient that softens skin, repairs barrier function, and enhances product spreadability.
• Toothpastes & Oral Hygiene: Prevents paste dry-out at the nozzle, provides smooth rheological body, and imparts a pleasant sweet mouthfeel.
• Hair Care & Body Washes: Retains moisture in hair fibers, enhances shine, and mitigates surfactant-induced skin dryness. - Pharmaceuticals & Clinical Applications (USP/BP/EP Grade):
• Functions as a solvent, sweetening vehicle, and viscosity modifier in cough syrups, pediatric drops, and oral elixirs.
• Active ingredient in osmotic laxative suppositories, ophthalmic lubricating eye drops, and topical burn wound dressings. - Food & Beverage Processing (Food Grade E422):
• Bakery Goods & Confectionery: Acts as a plasticizer and humectant to preserve crumb moisture in soft-baked cakes, prevent staling, and control sugar graining in fondants.
• Flavor Extracts & Food Colorings: Serves as an effective non-aqueous solvent and carrier for botanical flavorings and food dyes.
• Wines & Liqueurs: Enhances viscosity, rounds out mouthfeel body, and softens harsh alcohol burn. - Technical & Industrial Manufacturing:
• In industrial sectors, it acts as a non-toxic plasticizer in cellulose casing films, a safe lubricant in food-contact processing equipment, and a primary polyol reactant in high-grade alkyd resin synthesis.
Technical Dosing Guidelines, Blending & 250kg Drum Storage
- Blending & Solubility Rule: Refined glycerine is fully miscible with water and ethanol in all proportions, but insoluble in mineral oils, fixed oils, and ether. When preparing oil-in-water (O/W) emulsions, always dissolve glycerine into the aqueous water phase before heating and high-shear homogenization to ensure uniform distribution.
- Thermal Processing Controls: Avoid prolonged heating of pure glycerine above 150°C in open vessels. Excessive thermal stress can cause dehydration decomposition into Acrolein—a pungent, acrid aldehyde vapor that irritates eyes and airways.
- Warehouse Storage Protocol for 250kg Drums: Glycerine is intensely hygroscopic and rapidly absorbs atmospheric water vapor. Store tightly sealed in original 250kg drums in a cool, dry, well-ventilated dedicated warehouse between 15°C and 30°C. Reseal drum bungs immediately after dispensing to prevent moisture ingress from reducing the active assay below 99.7%.
⚠️ HANDLING PRECAUTIONS & COMPLIANCE DIRECTIVES:
• Toxicological Safety: Wilfarin Refined Glycerine 99.7% is a non-toxic, non-hazardous substance under standard handling conditions. However, to maintain pharmaceutical integrity, store strictly isolated from odorous materials, volatile organic solvents, and strong oxidizing agents (e.g., Potassium Permanganate, Chromic Acid) to prevent exothermic reactions.
• Personal Protective Equipment (PPE): Operators handling bulk drums should wear safety glasses and rubber gloves. Concentrated glycerine is strongly hyperosmotic and may cause transient eye irritation if splashed directly into eyes.
Commercial Supply Policy at THP Chemical
Tan Hung Phu Chemical Co., Ltd. (THP Chemical) is a trusted commercial distributor of Wilfarin Refined Glycerine 99.7% (Wilmar – Grade USP/BP/EP) supplying pharmaceutical laboratories, cosmetic brands, and food processors nationwide:
- 100% genuine factory imports from Wilmar International Ltd, fully compliant with USP 41, BP, and EP compendial monographs with active assay ≥ 99.7% Min.
- Standardized packaging format: Original 250 Kg Net heavy-duty steel/plastic drums with tamper-evident seals and fresh manufacturing dates.
- Complete regulatory compliance documentation: Batch-specific Certificate of Analysis (COA) from Wilmar, 16-section Material Safety Data Sheet (MSDS), and legal commercial VAT invoices provided with each dispatch.
- Extensive inventories maintained at our central Ho Chi Minh City logistics center, supporting rapid palletized delivery nationwide and providing laboratory trial samples with competitive wholesale volume pricing.
Frequently Asked Questions (FAQ)
1. What does the USP/BP/EP grade on Wilfarin Refined Glycerine 99.7% guarantee for formulators?
The USP/BP/EP grade confirms strict compliance with the United States, British, and European Pharmacopoeias. It guarantees high chemical purity (≥ 99.7%), heavy metal control (≤ 5 ppm), verified absence of sugar, and mandatory testing confirming Diethylene Glycol (DEG) and Ethylene Glycol (EG) remain below 0.1%, ensuring total clinical safety for human consumption and topical application.
2. Does Refined Glycerine 99.7% freeze during cold weather storage?
Pure anhydrous glycerine has a theoretical freezing point of approximately 17.8°C. However, due to its high viscosity and pronounced tendency to supercool, it rarely solidifies spontaneously at room temperature. If crystallization occurs under freezing conditions, gentle warming restores the liquid state without affecting chemical purity or functional performance.
3. Why does open-drum storage cause glycerine assay to drop over time?
Refined glycerine is intensely hygroscopic. When left unsealed, it continuously absorbs ambient moisture from the air, increasing water content and diluting the active assay below 99.7%. Keeping drum bungs tightly sealed preserves original compendial purity.
4. Does THP Chemical provide batch COAs and VAT invoices for 250kg drum orders?
Yes. THP Chemical supplies original factory Certificates of Analysis (COA) corresponding to each production batch from Wilmar, complete 16-section MSDS sheets, and legal commercial VAT invoices with every wholesale order to satisfy corporate QA/QC and regulatory compliance requirements.
Pharmaceutical manufacturers, cosmetic laboratories, food processors, and wholesale buyers seeking to buy glycerine bulk or procure Wilfarin Refined Glycerine 99.7% Wilmar (250kg Drum) or requesting batch COA/MSDS documents and R&D trial samples, please contact our Technical Sales Department directly:
Tan Hung Phu Chemical Co., Ltd. (THP Chemical)
Hotline / Zalo: 0913 711 647
Email: tanhungphu@thpchemical.com
