有机化学
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无机酸
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Amethyst
J&K
Fluorochem-B
Strem
Accela
Apollo
SERVA
TCI
Aldrich
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(99.999%-Se)
≥ 72.0%
≥98.0% (calcined substance, T), powder
≥99.9% trace metals basis
≥99.99% trace metals basis
20 wt. % in ethanol
20-25 wt. % in H2O
48 wt. % in H2O, ≥99.99%
48%
70 wt. % in H2O
85 wt. % in H2O, 99.99% trace metals basis
85 wt. % in H2O, FCC, FG
85%
97.0%(T)
97%
98%
99.5%
99.97% trace metals basis
99.999% trace metals basis
99%
ACS reagent, ≥85 wt. % in H2O
ACS reagent, 99.3%
contains no stabilizer, ACS reagent, 55%
crystalline, ≥99.999% trace metals basis
N/A
NMR reference standard, 85% in D2O (99.9 atom % D), NMR tube size 3 mm × 8 in.
NMR reference standard, 85% in D2O (99.9 atom % D), NMR tube size 4.2 mm × 8 in.
NMR reference standard, 85% in D2O (99.9 atom % D), NMR tube size 5 mm × 8 in.
purum p.a.
reagent grade, 48%
technical grade
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1000g
100g
100ml
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10kg
1ea
1kg
1l
2.5kg
2.5l
250g
250ml
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25ml
300ml
4l
500g
500ml
50g
50ml
5g
5kg
5ml
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