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Study on fertilizer efficiency and its mechanism of urea and ammonium bicarbonate treated with controlled-release technology;

控释技术处理碳铵、尿素的肥效及其机理初探

The incremental effect of rare earth ammonium bicarbonate was investigated by 15 N trace technique.

应用15N示踪法研究稀土与碳铵混配的情况下稀土对碳铵氮素的增效作用。

Under the condition of four successive plantations of leafy vegetables with the same amount of phosphorus and potassium,Urea,ammonium bicarbonate and their combined application with organic fertilizer experiment indicated that growth and yields of leafy vegetables in the urea treatment was better than those in ammonium bicarbonate treatment,but the difference declined with temperature decreasing.

连续种植4茬叶菜,在磷、钾肥用量一致的情况下,尿素、碳铵及其配施有机肥的试验结果表明:尿素处理的生长状况和产量结果好于碳铵处理,但这种差异随气温降低而逐渐收窄;尿素、碳铵分别配施有机肥的两处理产量差异较小。

A new process for producing high purity SiO_2 from fluosilicic acid and ammonium hydrocarbonate;

用氟硅酸和碳铵制高纯二氧化硅的新工艺

Made from ammonium carbonate,gypsym and potassium chl oride, the potassium sulfate and ammonium chloride are empl oyed in high concentration compound fertilizer manufacture as raw materials.

从实验出发，以碳铵、石膏、氯化钾生产硫酸钾及氯化铵，并以此产品作高浓复混肥的原料作工程性的探讨。

Preparation of cryolite with high molecule ratio from fluosilicic acid and ammonium hydrocarbonate;

由氟硅酸、碳酸氢铵制备高分子比冰晶石

First,brine is reacted with ammonium hydrocarbonate to obtain the sodium hydrocarbonate and the ammonium chloride solution,and then filtrated.

卤水制备纯碱分两步进行,第一步用卤水、碳酸氢铵反应得到碳酸氢钠微溶析出和氯化铵溶液,过滤。

Phosphogypsum reacts with ammonium hydrocarbonate at 5-30℃ to obtain ammonium sulfate solution,then the solution reacts with potassium chloride at 30℃ with adding an organic solvent to produce potassium sulfate.

介绍了由磷石膏制硫酸钾的新工艺 :磷石膏与碳酸氢铵在 5 - 30℃下反应 ,得硫酸铵溶液 ,该溶液与氯化钾在 30℃左右反应 ,并添加一种有机溶剂 ,得硫酸钾。

Discussion on drying process for ammonium bicarbonate;

碳酸氢铵干燥方法的探讨

Study on preparation of high purity manganese carbonate from manganese sulfate and ammonium bicarbonate;

用硫酸锰和碳酸氢铵制高纯碳酸锰

Nitrification inhibition effect of dicyandiamide on ammonium bicarbonate in red soils with different textures;

双氰胺对不同质地红壤中碳酸氢铵的硝化抑制作用研究

The results show that using ammonium bicarbonate instead of oxalic acid,high purity cerium oxide product containing CeO 2 of 99% could be obtained.

并用碳铵替代草酸生产 99%的高纯氧化铈产品。

A Study of Application of Anionic Surface Agent in Additive for Ammonium Acid Carbonate;

阴离子表面活性剂在碳铵添加剂中的应用研究

ammonium carbonate [chloride]

碳酸 [氯化] 铵

Ammonium hydrogen carbonate for industrial use

GB/T6275-1986工业用碳酸氢铵

hexadecyl trimethyl ammonium bromide

溴化十六碳烷基三甲铵

Ammonium carbonate decomposes to ammonium and bicarbonate.

碳酸铵进一步分解为铵离子和碳酸氢根离子。

a carbonate of ammonium; used in the manufacture of smelling salts and baking powder and ammonium compounds.

铵的碳酸盐，用于制造嗅盐、发酵粉和铵的化合物。

PURIFICATION OF ADU AND HIGH-MOLYBDENUM AUC BY RECRYCTALLIZATION

用重结晶法纯化重铀酸铵和高钼三碳酸铀酰铵

EXTRACTION SEPARATION OF MOLYBDENUM FROM URANIUM IN BASIC ELUATE (NH_4)_2 C0_3-(NH_4)_2 S0_4 BY QUATERNARY AMMONIUM SALT

用季铵盐从碳酸铵、硫酸铵碱性解吸液中萃取分离铀、钼

Improvement of the Determination Experiment of Passivation Curves of Carbon Steel in Ammonium Carbonate Solution

碳钢在碳酸铵溶液中钝化曲线测定实验的改进

Ling off ammonium bicarbonate, Yean, chemical raw materials.

灵产碳酸氢铵、液氨、化工原料。

Food additive ammonium bicarbonate

GB1888-1998食品添加剂碳酸氢铵

a solution of ammonium carbonate in ammonia water and alcohol.

碳酸铵在氨水和酒精中形成的溶液。

Effect of Impurities on Gypsum Conversion to Ammonium Sulfate with Ammonium Carbonate;

杂质对石膏—碳酸铵转化过程的影响

Mensuration of Nitrogen Content in Granular Agricultural Ammonium Bicarbonate

颗粒型农用碳酸氢铵中氮含量的测定

Effect of ammonium bicarbonate on the availability of P_2O_5 in MAP and its pH value in production of compound fertilizer

复混肥生产中碳酸氢铵对磷酸一铵磷素活性及pH值的影响

Ammonium hydrogen carbonate for industrial use--Determination of arsenic content--Gutzeit method

GB/T6276.8-1986工业用碳酸氢铵砷含量的测定砷斑法

Ammonium hydrogen carbonate for industrial use--Determination of total alkalinity--Volumetric method

GB/T6276.1-1986工业用碳酸氢铵总碱度的测定容量法