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petrolatum wax microcrystalline
microcrystalline wax

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CAS Number: 63231-60-7
Other(deleted CASRN):11120-44-8
ECHA EC Number:264-038-1
Category:chewing gum bases, protective coatings, defoaming agents, surface finishing agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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JECFA Food Additive: Microcrystalline Wax
GSFA Codex: Microcrystalline wax (905c(i))
DG SANTE Food Additives:microcrystalline wax
Physical Properties:
Appearance:colorless to white solid wax (est)
Food Chemicals Codex Listed: No
Soluble in:
 alcohol, very slightly
Insoluble in:
Organoleptic Properties:
Odor Description:at 100.00 %. odorless
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: binding agents
emulsion stabilisers
opacifying agents
viscosity controlling agents
BOC Sciences
For experimental / research use only.
Microcrystalline Wax 95%
Odor: characteristic
Use: Microcrystalline Wax is commonly used as a stiffening agent in topical creams and ointments.
H. Erhard Wagner
Strahl & Pitsch
Odor: odorless
Use: Strahl & Pitsch offers a full range of the finest Paraffin and Microcrystalline Waxes from domestic and international sources. Paraffin Waxes come from the dewaxing of paraffin distillates; Microcrystalline Waxes are derived from residium. Paraffin Waxes have relatively large brittle crystals (Macrocrystalline) and generally have little affinity for oil. Microcrystalline Waxes have very minute crystals (Micro Crystals) and are flexible, with a greater affinity for oil, which is held tightly in the crystal lattice and does not migrate to the surface.
Microcrystalline wax
Odor: bland
Use: Microcrystalline waxes are a type of wax produced by de-oiling petrolatum, as part of the petroleum refining process. In contrast to the more familiar paraffin wax which contains mostly unbranched alkanes, microcrystalline wax contains a higher percentage of isoparaffinic (branched) hydrocarbons and naphthenic hydrocarbons. Microcrystalline wax is characterized by the fineness of its crystals in contrast to the larger crystal of paraffin wax. It is generally darker, more viscous, denser, tackier and more elastic than paraffin waxes, and has a higher molecular weight and melting point. Typical microcrystalline wax crystal structure is small and thin, making it more flexible than paraffin wax. Microcrystalline wax is often used in industries such as the tire and rubber, candles, adhesives, corrugated board, cosmetics, castings, and a host of others. Microcrystalline waxes have considerable application in the custom making of jewelry and small sculptures. Different formulations produce waxes from those soft enough to be molded by hand to those hard enough to be carved with rotary tools. Microcrystalline wax is often used in sports, specifically in ice hockey and snowboarding. It is applied to the friction tape of a ice hockey stick to prevent degradation of the tape due to water destroying the glue on the tape and also to increase control of the hockey puck due to the waxes’ adhesive quality. It is also applied to the underside of snowboards to reduce friction and increase the gliding ability of the board, making it easier to control and diminishing the fatigue of the rider.
Safety Information:
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
chewing gum bases, protective coatings, defoaming agents, surface finishing agents
Recommendation for petrolatum wax microcrystalline usage levels up to:
 not for fragrance use.
Recommendation for petrolatum wax microcrystalline flavor usage levels up to:
 not for flavor use.
Safety References:
European Food Safety Authority (EFSA) reference(s):

Scientific Opinion on the re-evaluation of microcrystalline wax (E 905) as a food additive
View page or View pdf

Daily Med:search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):63231-60-7
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:nwg
Canada Domestic Sub. List:63231-60-7
Pubchem (sid):135298556
Other Information:
HMDB (The Human Metabolome Database):Search
Export Tariff Code:2712 90 99
FDA Listing of Food Additive Status:View
FAO:Microcrystalline wax
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 not found in nature
 ewacera 28
 microcrystalline paraffin waxes and hydrocarbon waxes
 microcrystalline wax


PubMed:Establishment of a novel one-step reverse transcription loop-mediated isothermal amplification assay for rapid identification of RNA from the severe fever with thrombocytopenia syndrome virus.
PubMed:Effect of emulsifier type and concentration, aqueous phase volume and wax ratio on physical, material and mechanical properties of water in oil lipsticks.
PubMed:A novel, direct, reagent-free method for the detection of beeswax adulteration by single-reflection attenuated total reflectance mid-infrared spectroscopy.
PubMed:One simple DNA extraction device and its combination with modified visual loop-mediated isothermal amplification for rapid on-field detection of genetically modified organisms.
PubMed:Investigation into the suitability of capillary tubes for microcrystalline testing.
PubMed:Development of a visual loop-mediated isothermal amplification method for rapid detection of the bacterial pathogen Pseudomonas putida of the large yellow croaker (Pseudosciaena crocea).
PubMed:Characterization of critical physical and mechanical properties of freeze-dried grape powder for development of a clinical patient delivery system.
PubMed:Melt extruded helical waxy matrices as a new sustained drug delivery system.
PubMed:Adaptation of a visualized loop-mediated isothermal amplification technique for field detection of Plasmodium vivax infection.
PubMed:Mid-IR fiber-optic reflectance spectroscopy for identifying the finish on wooden furniture.
PubMed:Preparation of sustained release matrix pellets by melt agglomeration in the fluidized bed: influence of formulation variables and modelling of agglomerate growth.
PubMed:Preparation of sustained release co-extrudates by hot-melt extrusion and mathematical modelling of in vitro/in vivo drug release profiles.
PubMed:Sintering of wax for controlling release from pellets.
PubMed:A comparative study of the dissolution characteristics of capsule and tablet dosage forms of melt granulations of paracetamol--diluent effects.
PubMed:Studies on the compressibility of wax matrix granules of acetaminophen and their admixtures with various tableting bases.
PubMed:Skin permeation of lidocaine from crystal suspended oily formulations.
PubMed:The effect of wax on compaction of microcrystalline cellulose beads made by extrusion and spheronization.
PubMed:In vitro study on sustained release capsule formulation of acetazolamide.
PubMed:The usage, occurrence and dietary intakes of white mineral oils and waxes in Europe.
PubMed:Controlled release of verapamil hydrochloride from waxy microparticles prepared by spray congealing.
PubMed:Wax beads as cushioning agents during the compression of coated diltiazem pellets.
PubMed:In vivo evaluation of matrix pellets containing nanocrystalline ketoprofen.
PubMed:Properties of lipophilic matrix tablets containing phenylpropanolamine hydrochloride prepared by hot-melt extrusion.
PubMed:An oral controlled release matrix pellet formulation containing nanocrystalline ketoprofen.
PubMed:Bioavailability of ibuprofen from matrix mini-tablets based on a mixture of starch and microcrystalline wax.
PubMed:Effect of diluents on tablet integrity and controlled drug release.
PubMed:Matrix mini-tablets based on starch/microcrystalline wax mixtures.
PubMed:Chemical, dissolution stability and microscopic evaluation of suspensions of ibuprofen and sustained release ibuprofen-wax microspheres.
PubMed:Structural rheology of a model ointment.
PubMed:Development and evaluation of sustained-release ibuprofen-wax microspheres. II. In vitro dissolution studies.
PubMed:Development and evaluation of sustained-release ibuprofen-wax microspheres. I. Effect of formulation variables on physical characteristics.
PubMed:The use of a microcrystalline wax in tablet polishing.
PubMed:The use of microcrystalline wax in tablet polishing.
tsca definition 2008: 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.
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