Junior high school chemistry acid and alkali experiment box
Classification：
Junior high school chemical experimental box
Product Model：
Grade：
Junior middle school chemistry
Function Description：
According to the experimental design of the textbook, the experimental box is more in line with the experimental methods and operations of the textbook, and the experimental coverage rate of the textbook is as high as 70%.
Share products:
Name:junior high school chemistry acid and alkali
Learning section:junior middle school chemistry
Structure:The inside of the experimental box contains a lining to ensure that each equipment has a corresponding storage location, which is convenient for fast and efficient sorting and storage. The box can be stacked in multiple layers, with a maximum of 5 boxes.
Experiment:Test of acidity and alkalinity of solution; experiment of chemical properties of acid and alkali.
Related Products
The Micro-Voltage Sensor is used to measure voltage within -60mV to 60mV. It amplifies the input voltage in order to measure voltage in micro level.
Milli-Current Sensor is used to measure the current within -20 to 20mA in circuit. When current passes through resistor, it will form a tiny electric potential difference at both ends of the resistor. After circuit amplifying, it can accurately measure the current in circuit.
Microphone collects sound signal using to electret microphone. The microphone consists of dust gauze, shell, vibrating diaphragm, spacer, back plate, copper ring, cavity and PCB. The microphone is formed to a capacitor with vibrating diaphragm, spacer and back plate. There are charge on the plastic vibrating diaphragm. Once it is affected by sound, the diaphragm starts vibrating so that distance between diaphragm and back plate changes. The difference Δd is generated. According to C=εS/4πkd, the capacitance will be changed by ΔC. According to C=Q/V (Q is electric charge quantity), due to the change of ΔC, Q is constant so that voltage will change by ΔV. The sound signal is transfer to electric signal. Sensor circuit transfer the electric signal into analog signal under standard range.
Used to measure the temperature of the surface of the object, gas, non-corrosive acid and alkali liquid.
7F, No.1 Building, Tianan Cyber Park, No.36 Yongfeng Road, Qinhuai District, Nanjing, China. (R&D centre)
No.306 Wenchang Road, Yongyang Street, Lishui Disctric, Nanjing, China. (Manufacturing base)
©COPYRIGHT 2023 Jiangsu SWR Science & Technology Co.,Ltd. ALL RIGHTS RESERVED | SEO