Product Code: Bo He Nao
Availability: In Stock
$32.00
Ex Tax: $32.00

Name: menthol
Pinyin: Bò He Nǎo
English name: MENTHOLUM
Source This product is a saturated ring alcohol obtained in the menthol oil.
Traits This product is colorless needle or prismatic crystal or white crystalline powder; a mint of special aroma, taste hot after burning; ethanol solution was neutral reaction.
This product in ethanol, chloroform, ether, liquid paraffin or volatile oil easily dissolved in the water is extremely soluble.
Melting point: should be 42 ~ 44 ℃ (Appendix Ⅶ C).
Specific rotation: take this product accurately weighed, add ethanol made per 1ml containing 0.1g solution, according to the determination (Appendix Ⅶ E), the specific rotation should be -49 ° to -50 °.
Identification:
(1) to take this product 1g, add sulfuric acid 20ml to dissolve, that is, orange-red, 24 hours after the precipitation of no mint
Brain aroma of the colorless oil layer (with the difference between thyme).
(2) take this product 50mg, add 1ml of acetic acid to dissolve, add sulfuric acid 6 drops and nitric acid 1 drop of cold mixture, only show
Pale yellow (different from thyme).
Indications: aromatic, seasoning and wind medicine. Can be used for skin or mucous membranes to produce a sense of coolness to reduce discomfort and pain.
Dosage: 0.02 ~ 0.1g, more into the tablets containing clothes. Or into the agent, ointment, topical application of the affected area.
Storage sealed, cool place.
Excerpt: "Chinese Pharmacopoeia"

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★ picture only for reference to the kind of delivery subject. Because the herbs are different from other commodities, each batch of goods fineness is not exactly the same, we can do is choose a good quality of delivery, this please rest assured!

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Product basic attributes
Shelf Life: 365 days
Storage: Dry storage, low temperature refrigeration
Organic or inorganic organic

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