Description
APPEARANCE: BLACK POWDER
FERRIC CONTENT: *0% ~ *5%
MOISTURE: 1.0%
WATER-SOLUBLE MATTER: 0.5%
PH VALUE: **8
OIL ABSORPTION: ****5
TINTING STRENGTH: *****5%
DENSITY APPROX: 4.**5.0 CM
Residue on sieve *5un(%): 0.*0
IMPORTANT FEATURES & QUALITY:
BLACK POWDER,
ADDITION COMPOUND OF FERROUS OXIDE AND FERRIC OXIDE, WITH
MAGNETISM, HIGH TINCTORIAL STRENGTH AND COVERING POWER, GOOD
RESISTANCE TO LIGHT AND ATMOSPHERE,
GOOD LIGHT-FASTNESS, AND NO IMPERMEABILITY OR OIL RESIDUE. IT IS
VERY STABLE IN GENERAL ORGANIC SOLVENTS, NOT RESISTANT TO ACID,
SOLUBLE IN HOT STRONG ACID. GOOD ALKALI RESISTANCE.
IT'S INORGANIC PRODUCTS OF A KIND USED AS LUMINOPHORES.
