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1.What is Menthol Crystal?

1. Menthol and spearmint are used as aromatizers in toothpaste, perfume, beverages and candies. In medicine as a stimulant, the role of the skin or mucous membranes, there is a cooling effect of itching; internal use can be used as a wind-expelling drugs for headaches and inflammation of the nose, throat, larynx, and so on. Its ester is used in spices and drugs. 2、Widely used in daily flavor, edible flavor, cigarette flavor. 3、It has sterilization and antiseptic effect. 4、Used as a special additive for therapeutic cosmetics. Used in floral water, etc. 5、Menthol Crystal is a natural pain reliever that stimulates cold receptors by inhibiting the Ca++ current in neuronal cell membranes, resulting in a cool sensation.

2.How is Menthol Crystal produced?

Manufacture from citronellal Using the nature of citronella aldehyde that can be easily cyclized to isohumantenol, dextro citronella aldehyde is cyclized to levo-isohumantenol with an acid catalyst (e.g., silica gel), which is fractionated to produce levo-isohumantenol and hydrogenated to produce levohumantenol. Its stereoisomer can be partially converted to dextro citronellal by thermal cracking and recycled. Manufacture from thymol Alkylation of m-cresol in the presence of aluminum m-cresol produces thymol. Catalytic hydrogenation yielded all four pairs of menthol stereoisomers (i.e., racemic menthol; racemic neomenthol; racemic isomenthol and racemic neoisomenthol). The isomers were isolated and optically split by distillation, elimination of the racemic menthol fraction, manufacture of esters and repeated recrystallization. The isolated levo-menthol esters were saponified to give menthol.

3.How is Menthol Crystal stored and distributed?

Store under dry inert gas, keep container tightly closed, store in a cool, dry place Packed in galvanized iron drums. Store in a cool, ventilated place. The storage should be dedicated and not mixed with other items. Pay attention to fire prevention. Polymerization inhibitor should be added before storage and transportation. Before transportation, check whether the packing container is complete and sealed, and make sure the container is not leaking, collapsing, falling or damaged during transportation. Strictly prohibit mixing and transporting with oxidizing agents, acids, alkalis, edible chemicals and so on. The transport vehicle and ship must be thoroughly cleaned and sterilized, otherwise it is not allowed to ship other items. When transported by ship, the fitting position should be far away from bedrooms, kitchens, and isolated from the cabin, power supply, fire source and other parts. Road transportation should follow the prescribed route.

4.What is Menthol Crystal used for?

1. Menthol and spearmint are used as flavoring agents for toothpaste, perfume, beverages and candies. In medicine, it is used as a stimulant, acting on the skin or mucous membranes, with a cooling and itching effect; internally, it can be used as a wind-expelling drug for headache and inflammation of the nose, throat and larynx, etc.. Its ester is used in spices and medicines. In the world, China and Brazil are the main natural mint production garden, the annual output of peppermint oil have reached 2000-3000t. 2. Widely used in daily flavor, edible flavor, cigarette flavor. Generally 1100mg/kg in chewing gum; 400mg/kg in candy; 130mg/kg in baked goods; 68mg/kg in ice cream; 35mg/kg in soft drinks.