CAS No.: 8003-69-8
Other Names: Direct Black OB
MF: C36H23N8Na3O11S3
EINECS No.: 232-322-4
Place of Origin: Gujarat, India
Type: Direct Dye
Usage: Leather Dyestuffs, Paper Dyestuffs
Brand Name: Sparrowings
Appearance: Powder Form
Brilliant Black PN, Brilliant Black A, Black PN, Food Black 1, Naphthol Black, C.I. Food Black 1, or C.I. 28440, is a synthetic black diazo dye. It is soluble in water. It usually comes as tetrasodium salt. It has the appearance of solid, fine powder, or granules. Calcium and potassium salts are allowed as well.
When used as a food dye, its E number is E151. It is used in food decorations and coatings, desserts, sweets, ice cream, mustard, red fruit jams, soft drinks, flavored milk drinks, fish paste, lumpfish caviar, and other foods.
E number: E151 (colours)
EC Number: 219-746-5
CAS Number: 2519-30-4
Chemical formula: C28H17N5Na4O14S4
Application: It is a kind of basic material for organic synthesis, and can produce acetylene gas for cutting and welding, also be material for calcium cyanamide.
Appearance: Grey, black solid, purple when its purity is more than 90%.
Granule:4-25mm / 15-25mm / 25-50mm / 50-80mm /25-80/ 80-120mm
Package: Net in 100kg or 50kg new iron drums with nitrogen.
Specification: GB10665-2004
Specification Superfine Grade First Grade Second Grade
Gas yield(L/kg)L/kg 305 295-305 285-295
PH3 content in acetylene (PH3%) 0.06 0.08 0.08
H2S content in acetylene (H2S%) 0.1 0.1 0.1
Direct Yellow 4 Direct Blue 71 Direct Brown 94
Direct Yellow 11 Direct Blue 86 Direct Brown 95
Direct Yellow 12 Direct Blue 158 Direct Violet 9
Direct Yellow 86 Direct Blue 199 Direct Violet 35
Direct Yellow 99 Direct Blue 215 Direct Black 19
Direct Red 16 Direct Orange 26 Direct Black 22
Direct Red 23 Direct Orange 34 Direct Black 56
Direct Red 31 Direct Orange 37 Direct Black 80
Direct Red 80 Direct Orange 39 Direct Black 155
Direct Red 81 Direct Green 1 Direct Black 165
Direct Red 239 Direct Green 6 Direct Black 166
Direct Blue 1 Direct Green 26 Direct Black 168
Direct Blue 15 Direct Green 114 Direct Black 170
Direct Blue 67 Direct Brown 2
R/o Salt Free Dyes For Ink Application
Direct Red 80 Direct Blue 15 Direct Violet 54
Direct Red 81 Direct Blue 89 Direct Black 19
Direct Red 239 Direct Blue 199 Direct Black 168
Direct Red 254 Direct Yellow 86
Acid Black 1 Acid Red 119 Acid Orange 74
Acid Black 11 Acid Red 131 Acid Orange 80
Acid Black 24 Acid Red 151 Acid Orange 142
Acid Black 26 Acid Brown 14 Acid Violet 17
Acid Black 52 Acid Brown 75 Acid Violet 49
Acid Black 173 Acid Brown 79 Acid Violet 54
Acid Black 174 Acid Brown 106 Acid Blue 7
Acid Black 194 Acid Brown 158 Acid Blue 9
Acid Black 210 Acid Brown 214 Acid Blue 15
Acid Black 234 Acid Brown 348 Acid Blue 92
Acid Red 14 Acid Brown 349 Acid Blue 113
Acid Red 17 Acid Brown 355 Acid Blue Br
Acid Red 18 Acid Yellow 11 Acid Blue N
Acid Red 33 Acid Yellow 17 Acid Blue V
Acid Red 44 Acid Yellow 23 Acid Green 1
Acid Red 52 Acid Yellow 42 Acid Green 3
Acid Red 54 Acid Yellow 73(Uranine) Acid Green 9
Acid Red 73 Acid Yellow 99 Acid Green 16
Acid Red 87(Eosine Sodium) Acid Yellow 110 Acid Green 17
Acid Red 88 Acid Yellow 194 Acid Green 20
Acid Red 89 Acid Orange 3 Acid Green 25
Acid Red 97 Acid Orange 7(Acid Orange Ii) Acid Green 111
Acid Red 99 Acid Orange 10
Acid Red 114 Acid Orange 56
R/o Salt Free Dyes For Ink Application
Acid Red 52 Acid Blue 15 Acid Violet 17
Acid Red 87 Acid Blue 25 Acid Black 1
Acid Blue 9 Acid Yellow 151
Application: It is a kind of basic material for organic synthesis, and can produce acetylene gas for cutting and welding, also be material for calcium cyanamide.
Appearance: Grey, black solid, purple when its purity is more than 90%.
Granule:4-25mm / 15-25mm / 25-50mm / 50-80mm /25-80/ 80-120mm
Package: Net in 100kg or 50kg new iron drums with nitrogen.
Specification: GB10665-2004
Specification Superfine Grade First Grade Second Grade
Gas yield(L/kg)L/kg 305 295-305 285-295
PH3 content in acetylene (PH3%) 0.06 0.08 0.08
H2S content in acetylene (H2S%) 0.1 0.1 0.1
Gas yield: 210L/KG,230L/KG,260L/KG, 295L/KG according different partical size
Physical and chemical characteristics: the ore is a solid brown or black solid, pure white crystal products(including CaC2 is purple).Density of 2.22g/cubic centimeter,melting point of 2300 degrees C(with CaC2 content),in case of water immediately produce a violent reaction, the formation of acetylene, and the release of heat, calcium carbide content of different melting point will also change.
Calcium carbide (CaC2) is a pivotal inorganic compound known for its industrial form as gray-black block-like material, often displaying purple or gray cross-sections. When exposed to water, it undergoes an energetic reaction, producing acetylene gas and releasing heat. Primarily, it's employed for two key purposes: as a source of acetylene gas with applications in welding, cutting, and fuel, and as a raw material in organic synthesis for chemicals like vinyl chloride and synthetic resins.
