DL-Malic acid [ 617-48-1 ]

Purity: 98%, malic acid in normal circumstances stability, high humidity has hygroscopic. Three inclined crystal is white crystals. Soluble in methanol, ethanol, acetone and many other polarity solvent. Used for cooling drink sour agent (pure cool and refreshing beverage, concentrated cool beverage, powder and cool and refreshing beverage, lactobacillus drink, beverage, soda water, cola drinks), LengShiPin sour agent (sherbet, ice-cream), processed food sour agent (chewing gum, ShuiGuoTang, marmalade, orange peel jam, tomato juice, chilli oil, vinegar, GuoZiJiu, mayonnaise, margarine), resist acid agents, fruit drinks tonal keep agent and antiseptic (mayonnaise emulsify stabilizer etc). Will DL - malic acid with sodium solution acidity, vacuum concentration system DL - malic acid sodium (63474-37 - [3]). Also is a kind of dressing, nephritis patients of salt substitutes. Malic acid ester can make margarine and other edible oils of additives. Malic acid of non-food aspect use including can be used as pharmaceutical, cosmetic, cleaning fluids, metal cleaner, slow granule, textile industrial resistance flocculences, industrial or deodorant agent, polyester fiber of fluorescent whitening agent of raw materials, and manufacturing alkyd resin monomers, etc. DL - malic acid and n-acetylcysteine malic acid was safe and nontoxic substances, used as fragrance enhancer, garlicin, auxiliary drugs and pH control agent, American regulation lollies may not exceed 6.9%, other foods around 0.7%, but these two malic acid may not be used for baby food, request the purity in above 99%, melting point for 127-130 ℃, heavy metal content in 0.002% below. Burning residua in 0.05% below. The goods is acid, in the seventeenth ℃, 0.1 Moore in aqueous solution for 2.28 pH value, can stimulate the mucosa and damage tooth enamel.