Sodium sulphite
Formula: na2so3
M. W.: 126.04
Cas no.: 7757-83-7
Description: white crystalline powder.
Specifications:
Item Super First Qualified
Purity (na2co3) 97.0%min. 96% min. 93.0%min.
Fe 0.003%max. 0.005%max. 0.01%max.
Water insolubles 0.02%max. 0.03% max. 0.05%max.
Free alkal 0.10%max. 0.40% max. 0.60%max.
Na2so4 2.5%max.
Nacl 0.10%max.
Uses: it is used as a desoxydating or bleaching agent for printing and dyeing industry, as a developer for photographic industry. As a lignin-removing agent for paper industry, as a stabilizer for synthetic fiber for textile industry, as a reducing agent for chemical industry, or for electroplating industry etc.
Packing: packed in 25kg net plastic woven bag.
1. Another name: Caustic soda
English name: sodium hydroxide; caustic soda
Molecular formula: NaOH
Molecular weight:40.00
2. Materialization nature: The pure product is the colourless transparent crystal, relative density 2.130. 318.4 degrees Centigrade of points. 1390 degrees Centigrade of boiling point. The city has solid state and two kinds of liquid state to sell the caustic soda: The purely solid caustic soda is white; there is bulk, bar-shaped, granular, the quality is fragile; the purely liquid caustic soda is the colourless transparent liquid.
3. Use: For the papermaking , production of cellulosic thick liquid and dregs of rice; Used in the soap , formate production of washing the silk ribbon pharmaceutical , formating the fatty acid and refinement moving the vegetable fat.
4. Packing
Flakes or pearls: 25kg plastic bags (3 layer pp & Pe)
solid: Iron drum, net WT:200kg (High of Drum:90cm)
5. .Specification of Caustic soda
Specification 96% 98% 99%
NaOH% fª 96 98 99
Na2CO3% f_ 1.40 1.10 0.90
Nac1% f_ 2.80 0.60 0.15
Fe2O3% f_ 0.01 0.009 0.007
25 kg/bag
Molecular formula: hcoona
Cas no: 141-53-7
Appearance: white crystal & powder.
Specification:
Grade super gradefirst gradequalified
Purity %989796
Na2co3%0.81.001.5
Naoh%0.30.50.5
Nacl %0.010.010.01
Moisture %0.81.002.5
Na2s% 0.0050.0050.005
Use:
1) used in leather industry, serves as camouflage salt in the chrome tanning method.
2) used in catalyst and stabilizer compositions, and in the printing and dyeing of textiles as a reducing agent.
3) used as the raw material in the manufacturers of sodium hydrosulphite, formic acid and oxalic acid.
Packing:
In 25 kgs net polywoven bag, inner with pe bag inside.
Other names: sodium hyposulfite, hyposulphite of soda
Molecular formula: na2s2o3 molar mass: 158.09774 g/mol
Appearance: white crystals
Density and phase
1.667 g/cm³, solid
Solubility in water
Very soluble
Melting point
48.3 c
Boiling point
N/a
Basicity (pkb)
N/a
Properties: white crystal powder
Items specification
Na2s2o3•5h2o99.0% min
Water-insoluble0.01% max
Sulphide(as na2s++0.001% max
Fe0.002% max
Ph value++200g/l solution++6.5+9.5
Application: mainly used for medicine, glass, printing and dyeing, fertilizer, etc..
Packing: 25kg/bag pp/pe
Synonym: sodium fluoroaluminate
Molecular formula: na3alf6
Molecular weight: 209.94
1> properties: it is crystalline white powder. Slightly soluble in water, density 2.95-3, melting point 1000oc, easily absorbing water and become damp, decomposed by strong acids like sulfuric acid and hydrochloride, then producing hydrofluoric acid and relevant aluminum salt and sodium salt.
2> uses: mainly used in flux of electrolytic aluminum, pesticide, flux of ceramic colors, anti-rubbing filling agent of resin and rubber, electrolytic liquid for production of iron alloy rimmed steel and furnish of emery wheel.
3> packing: 25/1000kg plastic woven bags with shrink film,or according to customers requirements.
4> specifications: gb4291-1999
Ingredientsuperfirst gradesecond grade
F%535353
Na% 323232
Al131313
H2o%n0.40.50.8
Sio2n0.250.360.4
Fe2o3%n0.050.080.10
So4%n0.71.201.30
P2o5%n0.020.030.03
Ignite on 550ocn2.53.003.00
Cao%n0.100.150.20
Packing:25kg/bag
