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Send EmailMicrocrystalline Wax, Micro Crystalline Wax, Micro Wax, Paraffin Microcrystalline, 63231-60-7
🧾 Microcrystalline Wax (CAS: 63231-60-7) – Technical Overview
🔹 Identity & Source
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Name: Microcrystalline Wax
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CAS Number: 63231-60-7
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INCI Name: Cera Microcristallina
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Origin: Derived from petroleum residual oils via solvent crystallization and dewaxing
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Structure: Branched-chain and cyclic saturated hydrocarbons (C35+)
🧾 Verified Aliases
| Alias Name | Context / Risk Level |
|---|---|
| Micro Wax | ⚠️ Medium (generic use) |
| Petrolatum Wax | ⚠️ Medium (overlaps with Vaseline) |
| Hydrocarbon Wax | ⚠️ Broad classification |
| Paraffin Microcrystalline | ✅ ERP-safe if CAS-tagged |
| USP Micro Wax | ✅ Pharmaceutical grade |
| Cera Microcristallina | ✅ INCI standard |
🧪 Physical & Chemical Properties
| Property | Value / Range |
|---|---|
| Appearance | White to amber flakes or blocks |
| Odor | Odorless and tasteless |
| Melting Point | 79.4 – 86.7 °C |
| Density | 0.93–0.95 g/cm³ |
| Solubility | Insoluble in water; soluble in benzene, chloroform, ether |
| Viscosity (molten) | Higher than paraffin wax |
| Crystal Structure | Small, irregular, microcrystalline |
| Flash Point | Not applicable (non-volatile solid) |
⚙️ Sectoral Suitability
| Sector | Suitability | Notes |
|---|---|---|
| 💄 Cosmetics | ⚠️ Limited | Used in lip balms, pomades, and emollient bases for texture control |
| 💊 Pharmaceuticals | ✅ High | Tablet coatings, controlled-release matrices, ointment stiffener |
| 🍬 Food Industry | ❌ Not approved | Not listed as food additive (non-digestible) |
| 🕯️ Candle Manufacturing | ⚠️ Technical | Used to modify paraffin crystal structure and reduce sweating |
| 🧪 Plastics / PVC | ✅ High | Lubricant, anti-blocking agent, viscosity modifier |
| 🎨 Polish / Packaging | ✅ High | Wood, leather, and automotive polish; barrier enhancer |
🧪 Wax Types – Sectoral Usage Comparison Table (with CAS Numbers)
| 🧱 Wax Type (CAS No) | 💄 Cosmetics | 💊 Pharmaceuticals | 🍬 Food Industry | 🕯️ Candles | 🧪 Plastics / PVC | 🎨 Polish / Packaging | 🚫 Alias Risk |
|---|---|---|---|---|---|---|---|
| Beeswax (8012-89-3) | ✅ Lip balm, creams | ✅ Ointments, emulsions | ✅ E901 additive | ✅ Traditional candles | ❌ Not suitable | ✅ Natural barrier, gloss | ⚠️ High – Cera Alba, Flava |
| Crude Beeswax (8006-40-4) | ❌ Not used | ❌ Not used | ❌ Not suitable | ✅ Aromatic candles | ❌ Not suitable | ⚠️ Technical polishes | ⚠️ Medium – Raw aliases |
| Candelilla Wax (8006-44-8) | ✅ Vegan formulations | ⚠️ Limited use | ⚠️ Rare usage | ✅ Vegan candles | ❌ Not suitable | ✅ Gloss enhancer | ⚠️ Medium |
| Carnauba Wax (8015-86-9) | ✅ Shine, stabilizer | ⚠️ Limited use | ✅ E903 additive | ⚠️ Very hard for candles | ❌ Not suitable | ✅ Premium polish | ⚠️ Low |
| Microcrystalline Wax (63231-60-7) | ⚠️ Rare cosmetic use | ✅ Tablet coatings, ointments | ❌ Not suitable | ⚠️ Industrial candles | ✅ PVC, rubber, insulation | ✅ Wood, leather, auto polish | ✅ Low |
| Soy Wax (8016-70-4) | ⚠️ Limited | ❌ Not used | ❌ Not suitable | ✅ Container candles | ❌ Not suitable | ❌ Not used | ⚠️ Medium |
| Rice Bran Wax (8016-60-2) | ✅ Vegan cosmetics | ⚠️ Limited | ❌ Not suitable | ⚠️ Niche candle applications | ❌ Not suitable | ✅ Natural polish | ⚠️ Low |
| Palm Wax (8002-75-3) | ✅ Vegan cosmetics | ❌ Not used | ❌ Not suitable | ✅ Pillar candles | ❌ Not suitable | ✅ Glossy finish | ⚠️ Low |
| Paraffin Wax (8002-74-2) | ⚠️ Base ingredient only | ❌ Not used | ❌ Not suitable | ✅ Mass-market candles | ✅ PVC, extrusion | ⚠️ Industrial polish | ✅ Low |
| Polyethylene Wax (9002-88-4) | ❌ Not used | ❌ Not used | ❌ Not suitable | ❌ Not used | ✅ Plastics, coatings, inks | ✅ Friction reducer | ✅ Low |
| Montan Wax (68334-28-1) | ❌ Non-cosmetic | ❌ Not used | ❌ Not suitable | ❌ Not used | ✅ Technical coatings | ✅ Automotive, furniture polish | ⚠️ |
