Jade has always been loved by the people. Experts advise people to buy and wear jade must be careful, the election will affect the health not good.
National Jewelry Quality Supervision and Inspection Center of the experts believe that jade is generally divided into A, B, C three kinds of goods, A cargo refers to the original color of the jade stone, it is not chemically treated jade, higher prices. B goods are re-filled resin chemically bleached jade, the price is cheaper. C cargo jet-poor, when heated to 110 degrees Celsius on the chromium salt solution immersion 12 days, so that chromium salts penetrate into the cracks to reach Tamaryo dyeing effect, when the crystal clear at first sight, it will fade after 2012, This jade cheap, but there is no value for collection. More common on the market now is that B + C goods to B and C cargo simultaneous combination of cargo processed.
Experts say, A cargo of natural jade, which constitute the elements of a more fixed, generally harmless to human body; B cargo in the case of forcing the resin is not in general will not be much harm; B + C or C goods, after the acid dye after the bleaching solution may be physical damage to the skin, because some merchants may use hydrofluoric acid, nitric acid, sulfuric acid, hydrochloric acid and other acids to the old counterfeit Yu-Qin color, and then the surface coated with a layer of fake jade floor paint , crystal lacquer, or epoxy resins.
Hospital occupational poisoning Medicine Haozhu Ren believes that strong acid resin with the material and the effect is likely to produce irritating, human exposure may cause contact dermatitis, redness, tingling, itching, and peeling and other symptoms. The skin more sensitive to people who are most likely symptoms.
Therefore, health experts suggest that you, in order to health and safety, it is best worn without chemical treatment of natural jade