美國(guó)PYREX長(zhǎng)頸平底燒瓶

這些125mL的耐熱玻璃平底鍋，有長(zhǎng)頸，有工具口，并有2號(hào)橡膠塞。它們是由7740硼硅酸鹽玻璃制造的。通過仔細(xì)地控制墻的厚度，以便在熱膨脹和機(jī)械強(qiáng)度之間達(dá)到適當(dāng)?shù)钠胶?，以獲得更大的沖擊阻力。它們出色的化學(xué)耐久性會(huì)導(dǎo)致在zui艱苦的實(shí)驗(yàn)室條件下的無污染結(jié)果和長(zhǎng)壽。PYREX沸騰瓶的正常工作溫度為230C
4060-50、4060-125、4060-250、4060-500、4060-1L、4060-2L、4060-6L、4060-12L

美國(guó)PYREX長(zhǎng)頸平底燒瓶

These 125mL PYREX flat bottom boiling flasks have long necks with tooled mouths and take a No. 2 rubber stopper. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX  boiling flasks is 230C.