Chemistry Laboratory Air Composition Analysis Device
- Категория: Chemistry >>>
- Поставщик: Yiwu Youshang Imp And Exp Co. Ltd.
Сохранить в закладки 60685467485:
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Product Description
The size of the glass bell jar can be estimated according to the size of the combustion spoon in the picture provided by the
customer.
Research instrument for air composition:
1) glass bell jar (with scale)
2) crystallizing glass dish
3) burning spoon
4) rubber stopper
Be careful. It's not a glass bottle. It's a glass bell jar.
2. Determination of oxygen content in air
There are many ways to determine the oxygen content in the air. In the laboratory, the following methods are usually used for
rough determination.
Put the glass bell in the sink and put three small pieces of glass on the bottom of the water. The water surface is used as the
base line, and the volume of the bell above the water surface is divided into 5 equal parts. As shown in Figure 3-1 device. Then
served in a burning spoon (inserted in the rubber stopper) in the amount of red light, immediately insert the bell jar, plugged
rubber plug. Red phosphorus burning in the bell jar, there are a lot of white smoke generated at the same time, the water
gradually increased, when burning after the stop, white smoke gradually disappear, then to sink in the water, the water in the
water tank and the clock is flat cover in the water, then can see the bell in the water rose, into the bell jar of water about the
original volume of gas accounted for 1/5. Open the bell on the rubber stopper, again will have a burning combustion spoon
containing red phosphorus into the bell jar, observe the phenomenon.
customer.
Research instrument for air composition:
1) glass bell jar (with scale)
2) crystallizing glass dish
3) burning spoon
4) rubber stopper
Be careful. It's not a glass bottle. It's a glass bell jar.
2. Determination of oxygen content in air
There are many ways to determine the oxygen content in the air. In the laboratory, the following methods are usually used for
rough determination.
Put the glass bell in the sink and put three small pieces of glass on the bottom of the water. The water surface is used as the
base line, and the volume of the bell above the water surface is divided into 5 equal parts. As shown in Figure 3-1 device. Then
served in a burning spoon (inserted in the rubber stopper) in the amount of red light, immediately insert the bell jar, plugged
rubber plug. Red phosphorus burning in the bell jar, there are a lot of white smoke generated at the same time, the water
gradually increased, when burning after the stop, white smoke gradually disappear, then to sink in the water, the water in the
water tank and the clock is flat cover in the water, then can see the bell in the water rose, into the bell jar of water about the
original volume of gas accounted for 1/5. Open the bell on the rubber stopper, again will have a burning combustion spoon
containing red phosphorus into the bell jar, observe the phenomenon.
Specification
Product name | Chemistry Laboratory Air Composition Analysis Device |
Color | Transparent |
Material | Glass |
Quality | High |
Certificate | ISO9001 |
Size | 31*19*18cm |
Feature | Durable |
Application | School |
Type | Chemical Laboratory |
Company Profile
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