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maleic adj.maleic acid【化學】馬來酸,順丁烯二酸...

maleic acid

Maleic anhydride is a white needle - like , briquette or flaky crystalline with irritant odour and sour , inflammable and sublimating . it can be freely dissolved in water to form maleic acid . it has a specific density of 1 . 480 , a melting point of 52 . 85 順酐(又稱馬來酸酐)為無色針狀或片狀結晶,有刺激性氣味與酸味,易燃,升華,易溶于水生成順丁烯二酸,相對密度為1

But the degree of modification is less than expectation value . 1n thi s paper a new rnethod , maleic anhydride / styrene dua1 monorners jn - - si tu gm ft - - 1n terca1a tion method , has been introduced successfu11y i n 近年來有人通過粘土熔融插層的方法來改性pp ,發現pp粘土插層復合材料( pp claynanocomposites , pcn )的韌性和拉伸強度得以同時提高,但并不令人滿意。

With phosphato - tungstic acid as catalyst and phosphoric acid as dehydrant , n - phenylmaleimide was prepared from aniline and maleic anhydride by two - step method . the yield was 88 . 7 % and the purity was 98 . 2 % 以順酐和苯胺為原料,磷鎢酸作催化劑,磷酸作脫水劑,采用兩步法制得n -苯基馬來酰亞胺,得到最佳反應工藝條件,產品收率為88 . 7 % ,純度為98 . 2 % (質量分數) 。

Zt - 8288 is a maleic acid type ioctyl stannum pvc heat stabilizer , which has long - term heat stability , has smell like ester , especially fit for using as slap - up translucent pvc innocuous tangled up film and smoke film Zt - 8288為馬來酸型辛基錫pvc熱穩定劑。有長期的熱穩定性。帶有酯類香味,特別適用高檔透明pvc無毒扭結膜及煙膜。

And the relationship between these factors and molecular weight has been concluded . the best process of maleic anhydride - co - acrylamine copolymer as the water - reducing agent has been designed 通過對在一定條件下制備的共聚物的分子量的測定,得到制備作為減水劑使用的馬來酸酐?丙烯酰胺共聚物的制備工藝。

Dl - aspartic acid has been synthesized from maleic anhydride and ammonia , the yield of dl - aspartic acid was above 70 % which is much higher than those reported in the literature 摘要以順丁烯二酸酐與氨水為原料合成dl -天冬氨酸,使其得率由現有的63 %提高到70 %以上,并對其反應機理進行了研究。

Manufacturer of organic chemicals including maleic anhydride , fumaric acid , tetrahydrophthalic anhydride thpa , hexahydrophthalic anhydride hhpa , malic acid and acrylamide -生產有機氟系列氯芐系列芳香醇醛酸酯醚酚系列等精細有機化學品,包括公司簡介產品介紹等

The resin of alkali developable photosensitive has been synthesized from the raw material of acrylic acid , maleic anhydride and epoxidized soybean oil 摘要以環氧大豆油、丙烯酸和馬來酸酐為原料合成了堿溶性光敏環氧丙烯酸酯齊聚物,用紅外光譜對產物進行了表徵。

Ema is monsanto ' s trademark for a series of white , odorless , freeflowing resins made by copolymerizing one mole of ethylene with one mole of maleic anhydride Ema是蒙山都公司生產的一組樹脂的商標,這些樹脂白色、無味、流動性好,是經1克分子馬來酐聚合而成的。

Chemical branch of chinese industrial company , offering maleic anhydride , malic , fumaric , and aspartic acids , alanine , and hydroquinone , as well as titania -從事原油加工,提供白油,溶劑油,防銹油,工藝用油,化學試劑,燃料油等,包括公司簡介產品展示等

Materials and articles in contact with foodstuffs - plastics substances subject to limitation - determination of maleic acid and maleic anhydride in food simulants 和食品接觸的材料和物品.受限制的塑料物質.食品模擬物中馬來酸和順式丁烯二酸酐的測定

The whole plant area covers 60 , 000 m2 , and has techniques and main equipments of maleic anhydride introduced from lonza company , - italy 廠區占地面積6萬余平方米,擁有從意大利lonza公司引進生產工藝技術及主要設備的

Chemical analysis of maleic and phthalic anhydrides . determination of iron by the method of standard nf t 20 - 613 preparation of test sample 馬來酐和酞酐的化學分析.用nf t20 - 613方法測定鐵含量

The polyester in these compositions is a 50 % solution of a maleic acid - prophlene glycol condensate in diallyl phthalate 在這些配方中的聚酯是馬來酸- -丙二醇縮合物在酞酸二烯丙酯中的50溶液。

Chemical analysis of maleic and phtahlic anhydrides . estimate of concentration by determination of total acidity with phthenolphthalein 馬來酐和酞酐的化學分析.用測定酚酞總酸度法評估濃度

- test method for color of maleic anhydride and phthalic anhydride in the molten state and after heating platinum - cobalt scale 熔融狀態下和加熱后順酐和苯酐顏色的試驗方法

Method for the determination of maleic hydrazide residues in nuts and nut products for export . spectrophotometry 出口堅果及堅果制品中抑芽丹殘留量檢驗方法.分光光度法

Tobacco and tobacco products determination of maleic hydrazide residues uv spectrophotometer method 煙草及煙草制品抑芽丹殘留量的測定紫外分光光度法

Chemical analysis of maleic and phthalic anhydrides . potentiometric determination of free acidity 馬來酐和酞酐的化學分析.游離酸度的電位測定