Sodium Sulphite,Sodium Bisulphite,Sodium Meta Bisulphite,Sodium Bisulphite Exporter,Sodium Meta Bisulphite Manufacturer,India

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Sodium Sulphite
Physical Appearance	A free flowing, white granular powder free from lumps.
Appearance of Solution	A Solution containing 200 G per Litre shall be colorless and free from sediment
PH of solution	8.5 TO 9.5
Assay as [ Na2SO3]	96.0 % Min.:
Moisture	0.06 % Max.
Thiosulphate as Na2S2O3	0.03 % Max.
Alkalinity as Na3CO3	0.15 % Max
Alkaline Earths Ba, Ca and Sr	0.04 % Max
Heavy Metals as Pb	0.002 % Max.
Packing	25Kg / 50Kg / 50Lb.

Sodium Bisulphite
(Photographic chemical; Pharmaceutical chemical; laboratory reagent and in dyes)
Product name	Sodium Bisulphite - NaHSO₃
Molecular Formula	NaHSO₃
Molecular Weight	104.07
Description	Very slight cream colored material, free from foreign particles with faint smell of sulphur dioxide gas
Assay as (NaHSO₃)	98 % Min
Assay as (SO₂)	62-63 % Min
Solubility (20 % Aqueous Soln)	Very slight hazy solution free from extraneous Impurities
pH Value of 5% Solution	4 ± 0.6

Sodium Thiosulphate (Crystals)
(Uses : Photographic chemical; laboratory reagent and X-ray fixtures)
Product name	Sodium Thiosulphate Crystal
Molecular Formula	Na₂S₂O₃ 5H₂O
Molecular Weight	248.19
Physical appearance	White shining crystalline material free from foreign particles
Total Alkalinity	97% Min.
20% Solution	Clear
PH of 10 % Solution	6.5 To 8.5
Uses	It is used under the name of hypo, as a fixing agent in photography. It is also used as an antichlor to remove excess of Chlorine from bleached fabrics. Also used in extraction of sliver and gold by lixiviation process. Used as a preventative in sugar manufacture as mordant in dyeing in bleaching bones, straw and ivory. As Reducing agent etc.

Sodium Thiosulphate (Anhydrous)
(Uses : Photographic chemical; laboratory reagent and X-ray fixtures)
Product name	Sodium Thiosulphate Anhydrous - (Na₂)S₂O₃
Molecular Weight	158
Physical appearance	White powder free from foreign particles
Assay as Na₂S₂O₃	97 % Min
20 % Solubility	Clear
PH of 10% Solution	6.5 To 8.5
Packing	50 Kgs in HDPE laminated bag with extra liner inside
Application	Photographic chemical, laboratory reagent and X-ray fixtures

Sodium Acetate Anhydrous
(Uses: Photographic chemical; laboratory reagent and in dyes)
Product name	Sodium Acetate Anhydrous - CH₃COOH
Assay as CH₃COONA Percent by mass	99.0 % Min
Insoluble matter (as calcium magnesium & Ammonium hydroxide, precipitate) % by mass	0.8 % Max
Heavy metals (as Pb)	0.005 % max
Iron as 'Fe'	0.005 % Max
Free alkali as (NaOH)	0.04 % Max
Free acid as (CH₃COOH)	0.08 % Max
10 % solubility	Clear & colorless
pH of 5% Solution at 25^O C	7.0 - 9.2

Sodium Formaldehyde Bisulphite
(Uses : Litho graphy)
Product name	CH₂(OH)SO₃Na
Molecular Weight	134.1
Physical Appearance	White, shining, crystalline material
20 % Solubility	Clear
Bisulphite %	Less than 0.3 %
Assay	98 % Min
Application	Lithography & photographic use and X- Ray fixer & platting. To control metallic impurities in Bright Nickel Bath

Sodium Acetate Trihydrate
Formula	CH3COONa , 3 H 2O
Molecular Weight	136
Heavy metals (as Pb)	0.005 % max
Iron as â€˜Fe'	0.005 % Max
5 % Solubility	Clear & colorless
pH of 5% Solution at 25 O C	7.5 - 9.0 pH
Assay as CH3COONa Percent by mass	97.0 % Min.

Sodium Carbonate Anhydrous
Formula	Na2CO3
Molecular Weight	106
Total alkalinity (As Na2CO3)	99 %
Insoluble Matter in Water Percent by mass max	0.05 %
10 % Solubility	Clear & colorless
pH of 5% Solution at 25 O C	7.5 - 9.0 pH
Assay as CH3COONa Percent by mass	97.0 % Min.

PHOTOGRAPHIC CHEMICALS