♣ 1. details of barium sulphate precipitated
CAS No.: 7727-43-7
EINECS No.: 231-784-4
H.S.code: 2833270000
MF: BaSO4
Purity: 98 min
Appearance: white powder, 325-3000 mesh
♣ 2.general description
White or yellowish odorless powder or small crystals. Mp: 1580°C
(with decomposition).Insoluble in water, dilute acids, alcohol. Soluble in hot concentrated sulfuric acid. Used as a weighting mud in oildrilling, in paints, paper coatings, linoleum, textiles, rubber. Administered internally (barium cocktail) as a radio-opaque diagnostic aid.
♣ 3.specification
Grade | First grade | |
BaSO4 (dry base) % ≥ | 98.0 | |
Water solubles % ≤ | 0.3 | |
acetic acid content % ≤ | 0.6 | |
S content % ≤ | 0.003 | |
volatile substance content % ≤ | 0.3 | |
residue on sieve (100°C) % ≤ | 0.2 | |
Particle size | ≤ 10um % | ≥ 80 |
≤5um % | ≥ 60 | |
≤ 2um % | ≥ 25 | |
PH value 100g/L solution | 6.5-9.0 | |
Oil absorption | 15-30 | |
Whiteness ≥ | 96 | |
Fe content % ≤ | 0.004 |
♣ 4.use
1. As raw material for paints, printing ink, plastics, rubber and storage battery. 2. As surface smear for photographic paper and calendered paper; as sizing agent for textile industry. 3. As clarifying agent for glass products. 4. As protective material for radiation; also used for ceramics, enamel, perfumes and pigments. 5. As raw material for the making of other barium salts.
♣ 5.packing & storage
In plastic woven bag lined with plastic; net wt. net wt. 25kgs/bag 25.5MT/20'FCL or as customer's requirement
stored in dry warehouse; no mixing with color articles; handle with are to protect packing.
Product quality: GB/T2899-2008
first-class barium sulphate 98%min. for paints