硝酸钾

Result The test in 2006 showed that the effects of potassium nitrate at 5% and 7% on breaking dormancy of Gala dormant bud were the best, and the average germination rate was 72.00% and 69.33% resp. The test in 2007 showed that the effect of 5% potassium nitrate on breaking dormancy of Gala dormant bud was the best, and the average germination rate was 78.33%. The tests in 2 years showed that the effect of calcium cyanamide with 5 times liquid on breaking dormancy of Jufeng dormant bud was the best.

结果］2006年试验发现，浓度为5%、7%的硝酸钾打破嘎拉休眠芽的效果最好，平均萌芽率分别为72.00%和69.33%；2007年试验发现，浓度为5%的硝酸钾打破嘎拉休眠芽的效果最好，平均萌芽率为78.33%。2年试验发现，浓度为5倍液的石灰氮打破巨峰休眠芽的效果最好。

The dormant bud of apple variety Gala was smeared with potassium nitrate at 1%, 3%, 5%, 7% and 9%, and the dormant bud of grape variety Jufeng was smeared with calcium cyanamide diluted at 2,5 and 8 times (weight ratio of calcium cyanamide to water was 1:2). The effects of potassium nitrate and calcium cyanamide with different concn. on breaking natural dormancy of fruit tree were studied.

方法用浓度为1%、3%、5%、7%和9%的硝酸钾涂抹苹果品种嘎拉的休眠芽，用浓度为2倍液（石灰氮与水的重量比为1：2，下同）5、倍液和8倍液的石灰氮涂抹葡萄品种巨峰的休眠芽，研究不同浓度的硝酸钾、石灰氮打破果树自然休眠的效果。

Cellulose triacetate or safety base completely replaced cellulose nitrate as the material used for motion picture film base by 1951-52, primarily because of flammability concerns.

三醋酸纤维素完全取代硝酸钾成为制作动画胶片的底片原料是大约1951-52年以后的事了，主要是基于硝酸钾易燃的考虑。

Key words:potassium nitrate;production technology;current situation;application;market;development suggestion

简要介绍硝酸钾的生产技术、国内现状、应用领域及市场前景，并对硝酸钾的发展提出了一些建议。

So two important questions arise:(1) how does fertilizer grade potassium nitrate compare in performance to chemical grade, and (2) is stump-remover a viable source of potassium nitrate, and if so, how does its performance compare?

所以两个重要问题出现：（ 1 ）如何肥料级硝酸钾比较，在性能，化学级，和（ 2 ）是残端-去除一个可行的来源，硝酸钾，如果是的话，请问其性能比较？

The amount of potassium nitrate present in this product undoubtedly varies from brand to brand (in fact, some brands are not potassium nitrate based, and are thus useless for propellant, such as Bonide TM Stump-Out ).

金额硝酸钾，目前在这方面的产品，无疑是不同的品牌，以品牌（事实上，一些品牌并非硝酸钾的基础，因而也是无济于事的推进剂，如bonide ？残端淘汰）。

10 kt/a anti-block industrial potassium nitrate is using magnesium nitrate and potassium chloride as raw materials,with the new production techniques of producing potassium nitrate with the newly-developed double decomposition circulating reaction method.By-product magnesium chloride hexahydrated with a small amount of potassium nitrate is called nitrogen-potassium-magnesium fertilizer.

张罡摘要： 1万t防结块工业硝酸钾的生产装置选用硝酸镁与氯化钾为原料，采用新研究开发的复分解循环反应法生产硝酸钾新工艺，副产品为六水氯化镁，六水氯化镁含少量硝酸钾，故称之为氮钾镁肥。

In order to improve the reaction rate of pyrotechnical reagent, transition metal oxides, Fe2O3 and CuO, were added into potassium perchlorate and potassium nitrate respectively by mixing and crystallization methods. Accelerating rate calorimeter was used to study the catalytic behavior of TMO.

为了提高含高氯酸钾和硝酸钾烟火药剂的反应速率，应用混合法和结晶法将过渡金属氧化物氧化铁添加到含高氯酸钾的烟火药剂中，将氧化铜添加到含硝酸钾的烟火药剂中。

By the determination of different additives influence on the crystal rules of the potassium nitrate, the primary selection to methanol, alcohol, acetone and ammonia is carried out. The results show that the methanol and ammonia have the best separation effect.

通过测定不同浓度下甲醇、乙醇、丙酮、氨四种添加剂对硝酸钾结晶的影响规律，发现甲醇和氨对硝酸钾的析出效果最好，乙醇次之，丙酮最差。

The research of produce potassium nitrate by using ammonium nitrate (NH 4NO 3) potassium chloride as raw materials, the methodology was double decomposition reaction and non-circulation.

研究了以硝酸铵和氯化钾为原料复分解非循环生产硝酸钾的工艺；实验制得了农业级的硝酸钾。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。