USD $25.00-25.00 / Kilogram
USD $5.00-100.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
product description
other name: 2,2',4,4'-tetrahydroxybenzophenone; bis(2,4-dihydroxyphenyl)methanone; 2,2',4,4'-tetrahydroxy benzophenone; bis(2,4-dihydroxyphenyl)methanone
cas number: 131-55-5
molecular formula: c13h10o5
molecular weight: 246.22
einecs no.: 205-028-9
inchi: 1s/c13h10o5/c14-7-1-3-9(11(16)5-7)13(18)10-4-2-8(15)6-12(10)17/h1-6,14-17h
density: 1.526g/cm3
boiling point: 531.2°c at 760 mmhg
melting point: 199-204ºc
flash point: 289.2°c
characteristics: yellow crystalline powder
specifications:
appearance |
light yellow crystalline powder |
assay |
min. 99.0% |
turbidity |
12 ntu |
melting point |
195°c |
loss on drying |
max. 0.5% |
gardner color |
max. 3.0 |
heavy metals |
max. 5ppm |
a1/1(345nm) |
min. 580 |
packing: 25kg/drum/bag or as your request.
storage situation: stored in a cool and dry well-closed container. keep away from moisture and strong light/heat.
shelf life: two years when properly stored.
delivery: within two weeks after receiving your prepayment.