Puxi imported graphite tube

Puxi imported graphite tubes are made of imported special high-purity, high-density, and high-strength graphite, which is purified multiple times to obtain high-quality graphite materialsPrepared by CVD process, with various indicators comparable to imported graphite tubes, possessingGood anti-interference ability, high precision, good reproducibility, long lifespan and other characteristics. Each batch of graphite tubes undergoes strict quality testing to meet the performance requirements.

The surface is dense and free of pores. High purity, total impurity content< 2ppm， Good airtightness.

High temperature resistance, strength increases with increasing usage temperature,The intensity reaches its highest value at 2750 ° C and sublimates at 3600 ° C.

Low elastic modulus, high thermal conductivity, low coefficient of thermal expansion, excellent thermal shock resistance of the product.

Good chemical stability, resistant to acid, alkali, salt, and organic reagents, does not work on molten metals, slag, and other corrosive media, and does not work in the atmosphereOxidation is not significant below 400 ° C, but the oxidation rate increases significantly at 800 ° C.

Do not release any gas at high temperaturesA vacuum of 10-7mmhg can be maintained at around 1800 ° C.

Puxi original graphite tube10 pieces/box, original accessories from Puxi, compatible with atomic absorption spectrophotometers produced by Pgeneral, Beijing Puxi General Instrument Co., Ltd., including A3, TAS-986, TAS-990, TAS-990G, TAS-990FG, TAS-990AFG and other models of AAS instruments.