Similar words: alloxan, cytoxan, Box and Cox, dioxin, dioxide, dioxygen, sulfur dioxide, carbon dioxide.
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1. Their quantum yields were about 0.4 in dioxane.
2. The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed.
3. Sodium gualenate was prepared from guaiazulene by using dioxane sulfur trioxide(D. S. agent ) as sulfonation agent in yield of 71% with 99.5% purity.
4. The dioxane solution was concentrated by evaporation and the remaining oil was distilled in vacuo on a water bath.
5. Tungstophosphoric acid uesd as solid catalyst and 1,4 dioxane usd as solvent with gallic and dodecanol , the preparation of DG have been studied.
6. The results showed that carbonyl groups in degradation products obviously increased and quinoid matters were produced when dioxane lignin reacted with hydrogen peroxide.Sentencedict.com
7. BACKGROUND: --Many countries including China have no standards limiting the amount of dioxane in shampoo and cosmetics.
8. Objective: To established a GC method with FID detector for determination of residual organic solvent dichloromethane, trichloroethylene, trichloromethane, dioxane in Ranitidine hydrochloride capsule.
9. The reaction conditions such as dosages of catalyst, 1,4 dioxane and water, solvent type, reaction temperature and time, adding method were also studied.
10. The invention also relates to, in particular, compounds having two tetrahydropyrane rings or at least one tetrahydropyrane ring and a dioxane ring .
11. But it failed to say if the small amount of dioxane in the products is harmful to children's skin.
More similar words: alloxan, cytoxan, Box and Cox, dioxin, dioxide, dioxygen, sulfur dioxide, carbon dioxide, sulphur dioxide, silicon dioxide, hexane, nitrogen dioxide, chlorine dioxide, titanium dioxide, carbon dioxide gas, wax and wane, cyclohexane, butanediol, coxa, moxa, coxal, vioxx, oxalic, oxalate, trioxide, pyridoxal, oxacillin, amphioxus, hypoxaemia, oxalic acid.