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We are offering the best quality in Sodium Bisulphite, Sodium Sulphite, Sodium Metabisulphite, Potassium Metabisulphite, Ammonium Sulphite Solution, Ammonium Thiosulphate Solution and many more. The current product range includes sub products and primary products that are used largely in the oil drilling, mud engineering and oil production also used in well stimulation jobs and Water treatment, X-Ray Development, Photography, Pulp/Paper production and Dyes manufacturing.

Sodium BisulphiteGet Quotation

Sodium Bisulphite a chemical mixture with the approximate chemical formula. It is also known as Sodium Hydrogen Sulphite and Monosodium Hydrogen Sulphite.

S. P. Chemicals
is specialized in manufacturing wide range of Sodium Bisulphite and are expertise in providing tailor made chemicals.

It is used in waste water treatment, in the pulp and paper industry, in the photographic industry and in various other industries as a bleach or chlorinator. It is usually added to large piping systems to prevent oxidative corrosion. In biochemical engineering applications, it is helpful to maintain anaerobic conditions within a reactor.

It is used forpreserving food and beverages.

Food Industry: It is frequently used as a bleaching agent in flour and grains, and as a dough conditioner to enhance the rise and preserve the freshness of bread.

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Sodium MetabisulphiteGet Quotation

Sodium Metabisulphite

Sodium Metabisulphite or sodium pyrosulfite is an inorganic compound of chemical formula Na¿¿¿S¿¿¿O¿¿¿. The substance is sometimes referred to as disodium Metabisulphite. It is used as a disinfectant, antioxidant, and preservative agent.


Molar mass:190.107g/mol

Melting point:150°C


Sodium Metabisulphite appears as a white crystalline or powder solid with a slightsulphurodour. Toxic by inhalation. Strongly irritates skin and tissue. Non-combustible, but may decompose to emit toxic oxide fumes ofsulphurandsodiumwhen heated to high temperature. A corrosive acid when mixed withwater. Used as a food preservative and as a laboratory reagent.

We exportSodium Meta Bisulphite, which is white crystalline powder, free from extraneous matter with a faint odour of sulphur dioxide gas. These are formulated using the quality ingredient to ensure high efficacy. Our range is used as photographic chemical and preservative chemical.

Another Name:Sodium pyrosulfite


Sodium Metabisulphiteisusedas an antioxidant agent in many pharmaceutical formulations. It is extensivelyusedas a food preservative and disinfectant. It has been demonstrated that sulphite exposure can affect some organs.

Sodium Metabisulphiteis a reducing agent used in dough. It is used frequently in cookie and cracker production. It is also used as a preservative for baked goods, wine, dried fruit and jams due to its antioxidant capacity.

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Industrial ChemicalsGet Quotation
Manufacturer of a wide range of products which include 65% sodium metabisulfite, industrial sodium meta bisulfite powder, 65% ammonium bi sulphite, ammonium thiosulphate crystal powder and sodium sulphite anhydrous powder.

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Ammonium Bisulphite SolutionGet Quotation

Ammonium Bisulphite
(Oxygen Scavenger)solution, fast reacting, catalyzed and stabilized.

ABS is also known chemically asAmmoniumHydrogen Sulfite, (NH 4 HSO 3 ). The appearance ofAmmonium Bisulfiteis pale yellow color clear liquidsolutionwith pungent odor of sulphur dioxide. Solutionfree from foreign particles.

Ammonium Bisulfiteis a colorless to yellow crystalline (sand- like) solid that is commonlyusedin a water solution. It isusedin fertilizer, water treatment, as a bleaching agent for paper pulp, cotton and wool, and as a hairweaving agent.

Ammonium Bisulphite Solution is a clear, citrine yellow liquid manufactured from sulphur dioxide and ammonia solution with strengths ranging from 60% to 70%.
The product is typically supplied in bulk tankers, 200 litre drums and 1000 litre IBC’s for use as an oxygen scavenger in the oil and gas industries and as a processing aid in the food industry, most notably carame colour and sugar manufactured from beet.

Product Use:- Ammonium Bi-sulphite (Oxygen Scavenger) is used for removal of dissolved oxygen to prevent internal oxygen corrosion in brackish water handling equipments at crude oil desalting system. It can also be used to arrest oxygen in sea water.

Handling:- It can be stored in closed containers away from direct sunlight at ambient temperature. During handling, direct contact with human body is to be avoided. Safety goggles and gloves are recommended for safe handling. On ingestion / eye contact with the product, medical attention should be sought immediately.

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Potassium MetabisulphiteGet Quotation
Our product range includes a wide range of food grade potassium metabisulphite industrial, kms potassium metabisulphite, ar grade potassium metabisulphite, potassium metabisulphite extra pure grade and potassium meta bisulfite.

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Sodium ThiosulphateGet Quotation

Sodium Thiosulphate

S.P. Chemicals is the one of the leading manufacturer of Sodium Thiosulphate based in Vadodara, Gujarat offering a complete range which includes:

· Sodium Thiosulphate Solution 30%

· Sodium Thiosulphate Anydrous (Hypo)

· Sodium Thiosulphate Anydrous Pure Grade

· Sodium Thiosulphate Pentahydrate

· Sodium Thiosulphate Pentahydrate Pure Grade

· Sodium Thiosulphate CRYSTAL

Sodium Thiosulfate (Sodium thiosulphate) is an inorganic compound with the formula Na2S2O3.xH2O. Typically it is available as the white or colorless pentahydrate, Na2S2O3•5H2O. The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water.[2]

Sodium thiosulfate is used in gold mining, water treatment, and analytical chemistry, the development of silver-based photographic film and prints, and medicine. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis. It is on the World Health Organization's List of Essential Medicines, the safest and most effective medicines needed in a health system.

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Ammonium Sulphite SolutionGet Quotation

Ammonium Sulphite Solution:

We produced Ammonium Sulfite Solution by applied a standard analytical methods before its production. This is available in the market in yellow color. Ammonium Bisulfite is the mixture of a sulphur with a white crystal and it provide the better quality for the correct measurement of gas.

We offer Ammonium Sulphite Solution that finds a wide application in X-ray development, photography and dyes manufacturing. These clear solutions reduce agents and mainly used as photographic chemicals. Our range is appreciated for purity, accurate composition and precise pH value.

Ammonium sulphite is used as a preservative for fixers in photography. When film photographs are being developedammonium sulphitecan be one of the reducing agentsusedto preserve the hypo (sodiumthiosulfate orammoniumthiosulfate)


A clear solution having very slight tinge with a faint smell of ammonia.

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Sodium SulphiteGet Quotation

Sodium sulphite is the inorganic compound with the chemical formula Na¿¿¿SO¿¿¿. A pale yellow, water-soluble solid, it is used commercially as an antioxidant and preservative. A heptahydrate is also known but it is less useful because of its greater susceptibility toward oxidation by air.

Sodium Sulphiteis a white crystal or powder with reducing property.Sodium sulphiteexhibits bleaching, de-sulfurizing, and DE chlorinating activities.

Sodium sulphite is used as a sulfonation and sulfomethylation agent in the chemical manufacturing industry. It is also used for the sodium thiosulfate production. This compound has several other important applications, including froth ores flotation, oil recovery, food preservatives, and colouring.


Parameters :





White Crystalline Powder



Minimum 95 %

96.09 %


9.0 – 10.5


Water Solubility

Completely soluble


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Sodium Formaldehyde BisulphiteGet Quotation

Formaldehyde sodium bisulfite, is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff. It also acts as an pharmaceutical intermediate. It can effectively complex metal ion such as Cu, Zn, Pb, co-depositing with nickel ion.

Sodium Formaldehyde Bisulphite,which is a white, shining, crystalline material. These are chemicals are used in an application like lithography & photographic use and x-ray fixer & platting. Moreover, it also used to control metallic impurities in a bright nickel bath.

Physical Parameters:


White Shinning Crystalline material


Min. 98%

Solubility (10% Aq Solution)

Clear and Colorless solution

pH(5 % Solution)


Bisulphite %


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Potassium BisulphiteGet Quotation

Potassium hydrogen sulfate or Potassium Bisulfite Solution is a chemical compound with the chemical formula KHSO3. It is used during the production of beverages as a sterilising agent. This additive is classified as E number E228 under the current EU approved food additive.

It is made by the reaction ofsulphur dioxideandpotassium carbonate. The sulphur dioxide is passed through a solution of the potassium carbonate until no more carbon dioxide is evolved. The solution is concentrated.

Other names

Potassium bisulfite, potassium bisulphite, monopotassium salt, monopotassium sulfite, potassium hydrosulfite

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Ammmonium Thiosulphate SolutionGet Quotation

Ammonium thiosulfate is an inorganic compoundwith the formula (NH4)2S2O3. It is whitecrystallinesolid withammoniaodour, readilysolubleinwater, slightly soluble inacetoneand insoluble inethanolanddiethyl ether.

Ammonium thiosulfate is used inphotographic fixer. It is a so-called rapid fixer, acting more quickly thansodium thiosulfatefixers.Fixation involves these chemical reactions (illustrated forsilver bromide).

Ammonium thiosulfate is also used forleachingofgoldandsilver. It works with presence ofcopperas acatalysthere. This process is a nontoxic alternativegold cyanidation.The advantage to ammonium thiosulfate is that the pyrolysis of its silver complexes leaves a residue solely of silver sulphide, in contrast to complexes derived from sodium thiosulfate.

We are leading Manufacturer and exporters of Ammonium Thiosulphate Solution. We are an ISO 9001-2008 company following all standard strictly to maintain our quality of products. Our in house lab and QC department is strong in equipment, knowledge and system to meet the international standards. Ammonium Thiosulphate Solution. or ATS is used in photographic fixers (so called rapid fixers) We manufacture this products at our ultra-modern facility of plant and lab. We have qualified technical staff and chemist around the clock to monitor each and every stage of the process.

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Potassium SulphiteGet Quotation

Potassium Sulphite:

Potassium Bisulphite Solution Potassium hydrogen sulfate or is a chemical compound with the chemical formula KHSO3. It is used during the production of beverages as a sterilising agent. This additive is classified as E number E228 under the current EU approved food additive.

Potassium Sulphite Solution is having a property of potassium salt. They have a pH value of 25 degree in 5.0∼8.0 chloride. These are decreasing level of potassium impurity by the added source of water.


Colourless OR Pale yellow clear solution.


Photo chemicals such as developer solutions, but also as a reducing agent in water treatment or as a food additive. The product is versatile and can be used for bleaching agent for sugar.

CAS Number 10117-38-1


  • Colourless
  • Insoluble in most organic solvents
  • 23% iron contentParameters

Parameters :


Colorless or pale Yellow Clear Solution.

Colorless or pale Yellow Clear Solution.


Min 45% W/W


Impurities Potassium

0.8% Max.


Specific Gravity

1.447 to 1.465


Assay as K2SO3

Min 45% W/W



9.0 to 10.0


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Calcium ChlorideGet Quotation
Manufacturer of a wide range of products which include calcium thio sulfate and sodium thiosulfate anhydrous powder.

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Potassium MetabisulfiteGet Quotation
Manufacturer of a wide range of products which include potassium metabisulphite e224.

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Potassium ThiosulphateGet Quotation
Offering you a complete choice of products which include potassium thiosulphate solution.

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Ammonium Polysulfide SolutionGet Quotation
Pioneers in the industry, we offer ammonium polysulfide solution from India.

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Potassium SulphateGet Quotation
Pioneers in the industry, we offer potassium thiosulfate agro grade from India.

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Chirag Patel (Partner)
S. P. Chemicals
s. No. 270 273/2 273/3 Halol Vadodara Road At Baska S P Chemicals Halol,HALOL- VADODARA ROAD, AT BASKA,HALOL,
Halol - 389350, Panchmahal, Gujarat, India
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