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cresol n.【化學】甲酚〔防腐等用〕。

cress

Progress in the production of sebacic acid from castor oil by high temperature caustic pyrolysis reaction was reviewed and the process , treatment of wastewater containing phenol or cresol , the purification of sebacic acid and so on were introduced 摘要論述了近年來蓖麻油裂解制癸二酸生產工藝的研究進展,重點介紹了生產工藝的改進、含酚廢水的治理、癸二酸的提純等方面的最新研究成果,并指出目前癸二酸生產中仍存在的問題和進一步研究的方向。

Synthesis methods for p - hydroxybenzaldehyde are reviewed and their advantages and disadvantages are briefly compared , to conclude that direct p - cresol oxygenation is a good method , with calm reaction , simple operation , high yield , high purity and little “ three wastes “ 敘述了對羥基苯甲醛的各種合成方法,并對各種方法的優缺點作了簡要對比,認為對甲酚直接催化氧化法反應平穩、操作簡單,收率和純度高,三廢量少,是一種很有前途的合成方法。

The effect of hexadecy pyridine choride on the dissociation constants of thymol blue bromide , cresol red , o - ckesolphthalein and thymol blue , as well as their the colour - changing ranges were studied by spectrophotometry 摘要探討了表面活性劑氯化十六烷基吡啶形成的膠束對溴百里香酚藍、甲酚紅、鄰甲苯酚酞和百里香酚藍離解反應的離解常數的影響,同時,也研究了該表面活性劑對上述四種酸堿指示劑變色范圍的影響。

The effect of hexadecy pyridine choride on the dissociation constants of thymol blue bromide , cresol red , o - ckesolphthalein and thymol blue , as well as their the colour - changing ranges were studied by spectrophotometry 探討了表面活性劑氯化十六烷基吡啶形成的膠束對溴百里香酚藍、甲酚紅、鄰甲苯酚酞和百里香酚藍離解反應的離解常數的影響,同時,也研究了該表面活性劑對上述四種酸堿指示劑變色范圍的影響。

N - phenyl - b - naphthylamine ( antioxidant d ) and 2 , 6 - di - tert - butyl - p - cresol ( anti - oxidant bht ) are the two kinds of antioxidant which are extensively used in our country . their standard reference materials can be used to rectify instruments and measure our analytical methods 防老劑d與bht標準物質可作為行業對其產品純度檢測的基準,用于校準測量儀器,評價測量方法的準確度,保證測量結果的準確性。

The compositions of products from alkylation of m / o - cresols were analyzed by combination of gas chromatography and mass spectrometry ( gc - ms ) . the analysis method for such compositions was established 1電石深加工行業的現狀和發展思路電石生產已有近百年歷史,發達國家已轉向利用石油、天然氣資源替代電石生產化工產品.中國缺油多煤的國情,使電石生產仍然保持快速發展勢頭

In this paper , we reported the synthesis of three supramolecular complexes between - cyclodextrin and anisole , ethyl benzoate , m - cresol , respectively , which are identified by means of 1hnmr technique 摘要以-環糊精與苯甲酸乙酯、苯甲醚和間甲酚在水相中通過范德華力發生包合反應形成了主客體超分子絡合物,并用核磁共振氫譜對絡合物進行了表征。

In the presence of sodium hydrate , the polymerization of mixture cresol ( cm ) with formaldehyde resulted in the formation of low - density , monolithic , free - crack cmf organic and carbon aerogels 以混甲酚( c _ m ) 、甲醛為原料, naoh為催化劑成功合成了低密度、塊狀無裂紋c _ mf有機氣凝膠及炭氣凝膠。

Abstract : in this article the technological process is introduced that anti - oxidant 264 and anti - oxidant 300 are prepared from mixed cresol . it is the first report at present 文摘:介紹了用生產對甲酚的副產品? ?混酚直接制取抗氧劑264及300的工藝過程.本工藝目前還未見報道

Manufacturer of aromatic intermediates in china . products include derivatives of benzaldehyde , acetophenone , phenols and cresols , and meloxicam -生產氟系列醫藥農藥中間體,主要產品有對氟苯胺對氟苯酚鄰氟苯胺鄰氟苯酚。

3 mixed cresol , insulation paint , clothing , needles textiles , feimian ( excluding cotton procurement ) , manufacturing , processing and marketing 三混甲酚、絕緣涂料、服裝、針紡織品、廢棉(不含棉花收購)制造、加工、銷售。

Standard test method for 2 , 6 - di - tert - butyl - p - cresol and 2 , 6 - di - tert - butyl phenol in electrical insulating oil by infrared absorption 紅外線吸收法測定電絕緣油中2 , 6 -二叔丁基對甲酚和2 , 6 -二叔丁基對苯酚的標準試驗方法

1730 insulation paint , enamel - insulated wire section 1730 high - intensity polyester production sales , cresol , enamel - insulated wire sales 1730絕緣漆、 1730高強度聚酯漆包線漆生產銷售,甲酚、漆包線銷售。

Evaluation of urinary ortho - cresol as biological monitoring indicator of occupational exposure to toluene 尿鄰甲酚作為接觸甲苯生物監測指標的探討

M . p - cresol 間對甲酚

Reversible organic thermochromism materials of cresol red , calcein as color change reagent 以甲酚紅和鈣黃綠素為變色劑的有機可逆熱色性材料

Nitro - p - cresol 硝基對甲酚

Acid cresol red 酸性甲酚紅

Standard practice for sampling and handling phenol , cresols , and cresylic acid 苯酚甲苯酚和甲苯基酸的采樣和處理的標準實施規范