one、 General State：

Molecular formula HthreeBOthree molecular weightsixty-one.8three。Boric acid is actually a hydrate of boron oxide（BtwoOthree.·threeHtwoO）,It is white powder crystal, with greasy feel and tasteless. proportionone.fourthree5。溶于水、酒精、甘油及醚类中，水溶液呈弱酸性。在水中的溶解度随温度升高而增大，并能随水蒸汽挥发。

Boric acid is not a dangerous chemical. Wear a dust mask when using it to avoid inhaling its dust.

IITechnical indicators：Implement national standardsGB/T5three8-two006

3、 Use Way:

It is widely used in glass, enamel and ceramic industry; It is used in medicine, metallurgy industry, photography, leather, electroplating and so on. Boric acid can produce a variety of borides, which are widely used in national defense and other industrial departments.

4、 Package pretendAnd storage：

包pretend：two5公斤。产地：美国(纸袋包pretend)、Chile（复合袋包pretend），俄罗斯（编织袋pretend）。

It shall be stored in a dry and clean warehouse and shall not be stacked in the open air. It shall be protected from rain or moisture.

term of validity:twofour个月（超过此期限经测试仍然达到Technical indicators时，仍然可with正常使用）。