bai ling wei abcr jiu ding enovation alfa a2bchem aaron trc scbt sigmaaldrich mai ke lin 1pchem acmec aladdin apolloscientific cooke citychemical xiao la jiao

25g 100g 5g 1g 10g 50g 250g 2.5g 250mg 500g 25 g 1 g 10 g 100 g 10gm 2,5 g 2.52,5g 250 g 5 g 50 g 50gm

99.5% 98% (99.9+%-hf, <1.0% zr) 98+% 99.9+%-hf, <1.0% zr sublimedgrade(99.9+%-hf,<0.05%zr) sublimedgrade(99.9+%-hf,<1.0%zr) 9 9 % , huang se dao zong se fen mo zr <2.7% ≥98% (99.9+%-hf, <0.5% zr) zr<0.5% 99.9% 99.9% (metals basis), zr<0.5% purified by sublimation, 99.9% trace metals basis 4n 9 9 . 9 % , ke li , gao ≤ 0 . 1 5 % 9 9 . 9 9 % , bai se fen mo , gao ≤ 0 . 1 5 % ≥95%