product line

BioUltra

Quality Level

200

assay

≥99.0% (T)

form

crystals

impurities

insoluble matter, passes filter test

ign. residue

≤0.01% (as SO₄)

loss

≤0.1% loss on drying, 110 °C

pH

5.0-6.0 (25 °C, 1 M in H₂O)

mp

>280 °C (dec.) (lit.)

solubility

H₂O: 1 M at 20 °C, clear, colorles