1.Barium carbonate for industrial use (BaCO3)

Specifications: 99.2 percent BaCO3 (high class); 99.0 percent BaCO3 (first class); 98.5 percent BaCO3 (qualified)
Applications: Used in manufacturing other barium salts, image tubes, storage batteries, capacitors, ceramics, vitreous enamel, optical glass, pigments, rubber, paints, ferrite, welding rods, steel carburizing, radio components, and bricks for high-rise buildings.
Implemented standard: GB/T1614-1999GB/T614-1999
Quality standard: GB/T1614-1999GB/T614-1999
Characteristics
|
Standard
|
High-class products
|
First-class products
|
Qualified products
|
Main content (BaCO3)
|
% ≥
|
99.2
|
99.0
|
98.5
|
Moisture content
|
% ≤
|
0.30
|
0.30
|
0.30
|
Insoluble in HCL solution
|
% ≤
|
0.15
|
0.25
|
0.50
|
Total sulphur (SO4)
|
% ≤
|
0.25
|
0.35
|
0.45
|
Chloride (Cl)
|
% ≤
|
0.01
|
-
|
-
|
Ferrum (Fe)
|
% ≤
|
0.004
|
0.004
|
0.008
|
Fineness
|
125 μm Shorts125 μm
|
% ≤
|
0.20
|
0.30
|
0.50
|
850 μm sieve residue
|
% ≤
|
1
|
1
|
1
|
150 μm Shorts 150 μm
|
% ≥
|
85
|
85
|
85
|
Note: 1. For ceramic capacitor powder, there should be no more than 1% of 45μm residue on test sieve.
2. Index of incinerated residue of HCl insoluble, for wet granulation products is decided by supplier and purchaser.
|
Packaging and transport: Packaged in Kraft paper or plastic woven bag, net wt 25 or 50 kg. Avoid rain or contact with foods during transport.
2.Strontium carbonate (SrCO3)

Specifications:98.0 percent, 95.0 percent SrCO3
Applications: Used mainly for glass of color image tubes, magnetic materials, glass, ceramics and fireworks; in metallurgy industry; and as raw material of other strontium salts.
Implemented standard: HG/T2969-1999
Quality standard: HG/T2969-1999
Characteristics
|
Standard
|
Type I
|
Type II
|
Strontium and barium content (SrCO3+BaCO3)
|
% ≥
|
98.0
|
|
Strontium carbonate content(SrCO3)
|
% ≥
|
|
95.0
|
Calcium carbonate content(CaCO3)
|
% ≤
|
0.5
|
1.0
|
Barium carbonate content(BaCO3)
|
% ≤
|
2.0
|
3.0
|
Sodium content(Na2O)
|
% ≤
|
0.3
|
|
Ferrum content(Fe2O3)
|
% ≤
|
0.01
|
0.01
|
Chlorine content (Cl)
|
% ≤
|
0.12
|
|
Total sulfur content (SO4)
|
% ≤
|
0.35
|
0.45
|
Moisture content
|
% ≤
|
0.30
|
0.50
|
Chromium oxide content (Cr2CO3)
|
% ≤
|
0.0005
|
|
Grain size
|
|
Negotiations
|
Packaging and transport: Plastic woven or laminated woven bags, net wt 25 kg, 50 kg, 500 kg, 800 kg, or 1000 kg. Avoid rain or moisture exposure in transport.
3.Potassium carbonate (K2CO3)
Specifications: Type I: 99.0 percent K2CO3 (high class); 98.5 percent K2CO3 (first class); 96.0 percent K2CO3 (qualified); Type Ⅱ: 99.0 percent K2CO3
Applications: Used mainly as raw material for syngas decarburization, or electron tubes, glass, vitreous enamel, printing and dyeing, electrodes, film visualization, inorganic salts, and glass of color image tubes.
Implemented standard: GB/T1587-2000GB/T1587-2000
Quality standard: GB/T1587-2000GB/T1587-2000
Characteristics
|
Type I
|
Type II
|
High-class products
|
First-class products
|
Qualified products
|
Potassium carbonate content (K2CO3)
|
% ≥
|
99.0
|
98.5
|
96.0
|
99.0
|
Chloride content (KCl)
|
% ≤
|
0.01
|
0.10
|
0.20
|
0.03
|
Sulfur compound content (K2SO4)
|
% ≤
|
0.01
|
0.10
|
0.15
|
0.04
|
Ferrum content (Fe)
|
% ≤
|
0.001
|
0.003
|
0.010
|
0.001
|
Water insoluble content
|
% ≤
|
0.02
|
0.05
|
0.10
|
0.04
|
Loss from coal fire
|
% ≤
|
0.60
|
1.00
|
1.00
|
0.80
|
Notes: ignition loss index is for inspection during product packaging.
|
Packaging and transport: Plastic woven bag with double layer plastic film lining, net wt 25 or 50kg. avoid sunlight, rain or moisture during transport.
4.Strontium nitrate XH/ZJ-05-2006
Molecular formula: Sr(NO3)2
Molecular weight: 211.63
Appearance: Colorless or light yellow crystal
Basic specifications:
Characteristics
|
Index
|
High-class products
|
First-class products
|
Main content Sr(NO3)2
|
≥ 99.0%
|
≥ 98.5%
|
Barium Ba(NO3)2
|
≤ 0.05%
|
≤ 0.5%
|
Moisture
|
≤ 0.1%
|
≤ 0.2%
|
Water insoluble
|
≤ 0.05%
|
≤ 0.1%
|
Ferrum (Fe)
|
≤ 0.001%
|
≤ 0.005%
|
Chloride (Cl)
|
≤ 0.01%
|
≤ 0.02%
|
Calcium (Ca)
|
≤ 0.03%
|
≤ 0.10%
|
Applications: Fireworks, signal flares, flame tubes, matchsticks, television picture tubes. and optical glass.
Packaging: Plastic woven bag with plastic film lining, net wt 25 kg..
5.Potassium Bicarbonate
CA No.: 298-14-6
Molecular formula: KHCO3
Applications: Raw material for producing potassium carbonate, potassium acetate, and potassium arsenite, for use in medicines, foods, as extinguishing agent, or in detergent.
Characteristics
|
First-class products
|
Superior products
|
Ideal index |
Ideal index
|
Potassium hydrogen carbonate (KHCO3), %
|
98.5
|
99.0
|
Potassium Chloride (KCL), %
|
0.05
|
0.02
|
Sulphur compound (K2SO4), %
|
0.05
|
0.03
|
Ferrum (Fe), %
|
0.02
|
0.001
|
Water insoluble, %
|
0.03
|
0.01
|
Appearance
|
Colorless monoclinic crystal
|
Colorless monoclinic crystal
|
Packaging: Woven bags or paper-plastic compound bags with plastic lining, net wt 25, 50, 500, 1,000 kg.
Storage and transportation: Store in dry, ventilated warehouse, not in a goods shed or outdoors; avoid moisture; during transportation and handling, avoid rain and damage to the package; cannot be transported with acids; if package catches on fire, water can be used to extinguish it.
6.Barium sulfate (BaSO4)

Specifications: Type I, 98.0 percent BaSO4 (high class), 97.0 percent BaSO4 (first class), 95.0 percent BaSO4 (qualified); TypeⅡ 98.0 percent BaSO4
Applications: Used in the paint, printing ink, pigment, rubber, storage battery, plastic, and steel plate machine industries.
Implemented standard: GB/T2899-1996
Quality standard: GB/T2899-1996
Characteristic
|
Type I
|
TypeⅡ
|
High-class
|
First-class
|
Qualified
|
Barium sulfate content ((BaSO4 dry)
|
% ≥
|
98.0
|
97.0
|
95.0
|
98.0
|
105℃ Volatile substance105 C
|
% ≤
|
0.30
|
0.30
|
0.50
|
28.0
|
Water soluble content
|
% ≤
|
0.30
|
0.30
|
0.50
|
0.20
|
Ferrum content (Fe)
|
% ≤
|
0.004
|
0.006
|
-
|
0.004
|
Whiteness
|
% ≥
|
94
|
92
|
88
|
94
|
Oil absorption
|
g/100g
|
15-30
|
10-30
|
-
|
-
|
pH value
|
|
6.5-9.0
|
5.5-9.5
|
5.5-9.5
|
6.5-9.0
|
Fineness (45μm residue on test sieve)
|
% ≤
|
0.2
|
0.2
|
|
0.1
|
Size distribution
|
Less than 10μm
|
% ≥
|
80
|
-
|
-
|
90
|
Less than 5μm
|
% ≥
|
60
|
-
|
-
|
70
|
Less than 2μm
|
% ≥
|
25
|
-
|
-
|
50
|
Packaging and transport: Double-layer plastic woven or compound plastic woven bag with polyethylene film lining, net wt 25 or 50 kg. Avoid rain, moisture, and sunlight during transportation.
7.Barium nitrate (Ba(NO3)2)
Specifications: 99.3 percent Ba(NO3)2, (high class), 99.0 percent Ba(NO3)2 (first class), 98.5 percent Ba(NO3)2 (qualified)
Applications: Mainly used in the manufacture of fireworks, ammunition, optical glass, and chemical reagents, and to produce other barium salts.
Implemented standard: GB/T1613-93GB/T1613-93
Quality standard: GB/T1613-93GB/ T1613-93
Characteristics
|
Index
|
High-class
|
First-class
|
Qualified
|
Barium nitrate content ((Ba(NO3)2 dry)
|
% ≥
|
99.3
|
99.0
|
98.5
|
Moisture
|
% ≤
|
0.05
|
0.10
|
0.10
|
Water insoluble content
|
% ≤
|
0.05
|
0.10
|
0.15
|
Ferrum content (Fe)
|
% ≤
|
0.001
|
0.003
|
0.005
|
Chloride content (BaCl2)
|
% ≤
|
0.05
|
-
|
-
|
pH
|
|
5.0-8.0
|
-
|
-
|
Packaging and transport: Iron drum polyethylene film lining, net wt 50 kg; avoid sunlight, rain, heat, or moisture during transportation; do not carry with reducing agents or organic chemicals.
8.Sulphur

Specifications: 99.95 percent S (high class), 99.50 percent S (first class), 99.00 percent S (qualified)
Application: Used in the manufacture of sulfuric acid, dyes and rubber products; also used for medicines and pesticides.
Implemented standard: GB/T2449-2006
Quality standard: GB/T2449-2006
Characteristics
|
Index
|
High-class
|
First-class
|
Qualified
|
Sulphur content (S)
|
% ≥
|
99.95
|
99.50
|
99.00
|
Moisture content
|
% ≤
|
0.10
|
0.50
|
1.00
|
Ash content
|
% ≤
|
0.03
|
0.10
|
0.20
|
Acidity content (H2SO4)
|
% ≤
|
0.003
|
0.005
|
0.02
|
Organic matter
|
% ≤
|
0.03
|
0.30
|
0.80
|
Arsenic (As)
|
% ≤
|
0.0001
|
0.01
|
0.05
|
Ferrum content (Fe)
|
% ≤
|
0.003
|
0.005
|
-
|
Packaging and transport: Plastic woven bag or gunnysack lined with plastic film, net wt 25 or 50 kg; can also be packaged in bulk; transport in accordance with government regulations.
9.Sodium sulfide (Na2S)
Specifications: 60 percent Na2S (Type 1), 60 percent Na2S (Type 2), 65 percent Na2S (Type 3)
Applications: Used in the paper-making, dye, ore dressing, printing, and dyeing industries.
Implemented standard: GB/T 10500-2000GB/T 10500-2000
Quality standard: GB/T 10500-2000GB/T 10500-2000
Characteristics
|
Type 1
|
Type 2
|
Type 3
|
High-class
|
First-class
|
Qualified
|
First-class
|
Qualified
|
Sodium sulfide content (Na2S)
|
% ≥
|
60.0
|
60.0
|
60.0
|
60.0
|
60.0
|
65.0
|
Sodium sulfite content (Na2 SO3)
|
% ≤
|
2.0
|
-
|
-
|
-
|
-
|
-
|
Sodium thiosulphate content (Na2S2O3)
|
% ≤
|
2.0
|
-
|
-
|
-
|
-
|
-
|
Ferrum content (Fe)
|
% ≤
|
0.03
|
0.12
|
0.20
|
0.003
|
0.005
|
0.08
|
Sodium carbonate content (Na2CO3)
|
% ≤
|
3.5
|
5.0
|
-
|
2.0
|
3.0
|
4.0
|
Water insoluble content
|
% ≤
|
0.20
|
0.40
|
0.80
|
0.05
|
0.1
|
0.3
|
Packaging and transport: Types 1 and 2 are packaged in iron drums that comply with safety requirements and the customer’s requirements; Type 3 is also packaged in iron drums; net wt is 25, 50, and 150 kg; avoid sunlight, rain, and heat in transporting, and guard against damage.
10.Sodium hydrosulfide
Specifications: 36 percent NaHS, 28 percent NaHS
Applications: Mainly used in ore dressing, pesticide, leather-working, dye, and organic synthesis industries.
Implemented standard: HG/T 3687—2000HG/T 3687—2000.
Quality standard: HG/T 3687--2000HG/T 3687—2000.
Item
|
Type 1 liquid
|
Type 2 liquid
|
Sodium hydrosulfide content (NaHS)
|
% ≥
|
36
|
28
|
Sodium sulfide content (Na2S)
|
% ≤
|
1.0
|
1.2
|
Ferrum content
|
% ≤
|
By agreement
|
Packaging and transport: Iron drums or tanks; net wt of 200 kg/drum; avoid sunlight, rain, or heat during transport; keep package intact; avoid contact with acids and corrosive materials.