二磷酸

Melamine orthophosphate and melamine pyrophosphate are prepared by reaction of ammonium dihydrogen phosphate or sodium pyrophosphate with melamine and hydrogen chloric acid.

以磷酸二氢铵、焦磷酸钠、三聚氰胺及盐酸为原料，制备了三聚氰胺正磷酸盐和三聚氰胺焦磷酸盐。

The first process is failed, which is for manufacture of monopotassium phosphate and sodium chlorate from potassium chloride, phosphoric acid and sodium hydroxide.

以氯化钾、磷酸和氢氧化钠为原料联产磷酸二氢钾和氯酸钠的工艺路线还存在一些问题。

Are the main products are: yellow phosphorus, phosphoric acid, sodium salt (one, two, three, four, five, six sodium), formic acid, sodium, a potassium, dispersants, S Lida triazine and more than 300 chemical reagent Products.

现主要产品有：黄磷、磷酸、磷酸钠盐（一、二、三、四、五、六钠）、甲酸、甲酸钠、甲酸钾、分散剂、硫利达嗪和300多个化学试剂产品。

Adenosine was used as the raw material, dissolved in triethyl phosphate and then esterified with thiophosphoryl chloride under 0~5℃ for 8h without water and oxgen, in alkaline condition provided by 2,6-dimethylpyridine, introducing thiophosphoryl ester to adenosine.Then superfluous triethylamine was added and reacted under 5℃ for 1h to synthesize rough 5'-AMPS.The unpurified product was appled to a DEAE Sephadex A-25 column and eluted with triethylammonium bicarbonate.

用腺苷为起始原料，溶解于磷酸三乙脂中后，在无水无氧环境中及2，6-二甲基吡啶提供的碱性条件下与三氯硫磷以0~5℃下发生酯化反应8h，将硫代磷酸酯引入腺苷，然后再与过量三乙胺在5℃下反应1h，合成粗产品，再用碳酸氢三乙胺作洗脱液，过DEAE Sephadex A-25凝胶柱纯化。

The level of cAMP in cell depends on adenyl cyclase and phosphodiesterase .

细胞内的环磷酸腺苷的水平取决于腺苷环化酶和磷酸二酯酶。

TPP gene plays an important role in synthesis of trehalose. The cloning of TPP gene lays a solid basis for investigating the biosynthesis of trehalose in L. bicolor.

海藻糖－6-磷酸磷酸酯酶在海藻糖合成过程中起关键作用，该基因的克隆为研究海藻糖在二色补血草中的合成奠定了基础。

Originally techniques dropped formaldehyde into the mixture of phosphorous acid and monosodium of imino diacetic acid in high temperature.

原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应，考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得，直接将三氯化磷用于双甘膦的合成，不仅可以简化操作过程，而且对于降低生产成本和能耗有明显意义。

Aluminum phosphate (AlPO 4) can be prepared by solid state synthesis with different templates, aluminum chloride and ammonium diacid phosphate at low temperature (180℃) within a short time (2 h).

以氯化铝和磷酸二氢铵为原料，在模板剂存在下用固相合成方法合成了磷酸铝类化合物，合成的化合物通过化学分析、ICP测定、XRD和 IR图谱对其进行了表征，研究了化合物对铬离子吸附性能，实验表明这类化合物对铬离子有较好的吸附能

The preferred fertilizers are high-analysis types such as monoammonium phosphate and diammonium phosphate .

优质肥料是属于高浓度类型，例如磷酸一铵和磷酸二铵。

Each 59 mL Delivered Dose: Monobasic Sodium Phosphate 9.5 g; Dibasic Sodium Phosphate 3.5 g

每59毫升让渡剂量：磷酸二氢钠九点五克；二元磷酸钠三点五克

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。