MICROCRYSTALLINE WAX CAS 63231-60-7

Introduction：Basic information about MICROCRYSTALLINE WAX CAS 63231-60-7, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

MICROCRYSTALLINE WAX Basic information

• Product Name: MICROCRYSTALLINE WAX
• Synonyms: Floorwax;VANFRE HYP;VANFRE M;VANFRE UN;VANFRE VAM;Multiwax ML-445;Multiwax W-445;Multiwax W-835
• CAS: 63231-60-7
• MF: unspecified
• MW: 0
• EINECS: 264-038-1
• Product Categories: UVCBs-organic;Cosmetic Ingredients & Chemicals
• Mol File: Mol File

MICROCRYSTALLINE WAX Chemical Properties

• storage temp.: 2-8°C
• solubility: Soluble in benzene, chloroform, and ether; slightlysoluble in ethanol; practically insoluble in water. When melted,microcrystalline wax is miscible with volatile oils and mostwarm fixed oils.
• Odor: at 100.00?%. odorless
• Major Application: pharmaceutical (small molecules)
• Cosmetics Ingredients Functions: VISCOSITY CONTROLLING BULKING BINDING OPACIFYING EMULSION STABILISING
• EPA Substance Registry System: Microcrystalline paraffin waxes and hydrocarbon waxes (63231-60-7)

Safety Information

• WGK Germany: WGK 3
• TSCA: TSCA listed
• Storage Class: 11 - Combustible Solids

MICROCRYSTALLINE WAX Usage And Synthesis

Chemical Properties

Microcrystalline wax occurs as odorless and tasteless waxy lumpsor flakes containing small irregularly shaped crystals. It may vary incolor from white to yellow, amber, brown, or black depending onthe grade of material; pharmaceutical grades are usually white oryellow.
The USP32–NF27 describes microcrystalline wax as a mixtureof straight-chain, branched-chain, and cyclic hydrocarbons,obtained by solvent fractionation of the still-bottom fraction ofpetroleum by suitable means of dewaxing or de-oiling.

Uses

Microcrystalline Wax USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.

Definition

MICROCRYSTALLINE WAX is a complex combination of long, branched chain hydrocarbons obtained from residual oils by solvent crystallization. It consists predominantly of saturated straight and branched chain hydrocarbons predominantly greater than C35.

Production Methods

Microcrystalline wax is obtained by solvent fractionation of thestill-bottom fraction of petroleum by suitable dewaxing or deoiling.

Flammability and Explosibility

Not classified

Pharmaceutical Applications

Microcrystalline wax is used mainly as a stiffening agent in topicalcreams and ointments.
The wax is used to modify the crystal structure of other waxes(particularly paraffin wax) present in a mixture so that changes in crystal structure, usually exhibited over a period of time, do notoccur. Microcrystalline wax also minimizes the sweating or bleedingof oils from blends of oils and waxes. Microcrystalline waxgenerally has a higher melting point than paraffin wax, and higherviscosity when molten, thereby increasing the consistency of creamsand ointments when incorporated into such formulations.
Microcrystalline wax is also used in oral controlled-releasematrix pellet formulations for various active compounds and asa tablet- and capsule-coating agent. In controlled-release systems,microcrystalline wax coatings can also be used to affect the releaseof drug from ion-exchange resin beads.
Microcrystalline wax is also used in confectionery, cosmetics,and food products.

Safety

Microcrystalline wax is mainly used in topical pharmaceuticalformulations but is also used in some oral products. It is generallyregarded as a nontoxic and nonirritating material.

storage

Microcrystalline wax is stable in the presence of acids, alkalis, light,and air. The bulk material should be stored in a well-closedcontainer in a cool, dry place.

Regulatory Status

GRAS listed. Accepted for use as a food additive in Europe.Included in the FDA Inactive Ingredients Database (oral capsules;topical and vaginal preparations). Included in nonparenteralmedicines licensed in the UK. Included in the Canadian List ofAcceptable Non-medicinal Ingredients.