Sodium Sulfite

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Chemical Data

CAS Number	7757-83-7
PubChem CID	24437
IUPAC Name	disodium;sulfite
Synonyms	SODIUM SULFITE, 7757-83-7, Disodium sulfite, Sodium sulfite anhydrous, Sodium sulphite, Sulfurous acid, disodium salt, Natrium sulfurosum, Sulftech, Natriumsulfid, Natriumsulfit, S-WAT, Natrii sulphis, Anhydrous sodium sulfite, Sodium sulfite (Na2SO3), Exsiccated sodium sulfite, Natrum sulphurosum, Sodium sulphite anhydrous, Sulfurous acid, sodium salt (1:2), Sodium sulfite, anhydrous, Sodium sulfite, exsiccated, Dried sodium sulfite, Disodium sulfite (Na2SO3), Anhydrous sodium sulphite, Sodium sulfite (2:1)
Molecular Formula	Na2O3S
Molecular Weight	126.05
SMILES	[O-]S(=O)[O-].[Na+].[Na+]
InChI Key	GEHJYWRUCIMESM-UHFFFAOYSA-L
InChI	InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
Purity / Grade	AR Grade
Packing / Packaging	1 kg
Available In	Pakistan
Serving Areas	Pakistan

CAS Number 7757-83-7

Purity / Grade AR Grade

Packing / Packaging 1 kg

Available In Pakistan

Sodium sulfite is an inorganic sodium salt having sulfite as the counterion. It has a role as a reducing agent and a food preservative. It is an inorganic sodium salt and a sulfite salt. It contains a sulfite.

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Chemical Sodium Sulfite Reference page

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A boiler program hub for scale, corrosion, dissolved oxygen, alkalinity, pH, blowdown, testing, and linked boiler chemical product pages.

Oxygen Control Oxygen scavenger selection supports corrosion control in feedwater and boiler circuits when paired with correct residual monitoring.

Internal Conditioning Phosphate or conditioning chemistry helps manage hardness leakage and sludge handling inside the boiler.

Alkalinity & pH Balance pH and alkalinity control help protect metal surfaces and reduce instability in the boiler water cycle.

Feedwater hardness Boiler pH / alkalinity TDS / conductivity Sulfite or scavenger residual Phosphate reserve Condensate return condition

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Boiler capacity, pressure, and operating hours.
Feedwater source, softener status, and latest water report.
Condensate return percentage and current blowdown practice.
Current chemical program, dose, and monthly consumption.
Photos of scale, corrosion, sludge, or boiler records where available.

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Report Focus Boiler / Heating Water Treatment Recommendation Report

Operational boiler ranges are pressure and OEM dependent. Use these values for screening and confirm against boiler pressure, condensate return, and plant SOP.

pH TDS Conductivity Total Hardness as CaCO3 Total Alkalinity as CaCO3 Sulphite / Sulfite Residual Phosphate Silica Iron Chloride Dissolved Oxygen

Category-specific judgment points

What is the boiler working pressure and capacity?
Is the feedwater softened, RO-treated, or raw, and is hardness leakage present?
What are the current sulfite, phosphate, pH, TDS/conductivity, alkalinity, and blowdown values?
What percentage of condensate returns to the boiler and is iron pickup visible?

Name Company / Plant Email WhatsApp / Phone Country City / Site Location Water Treatment Category Request Type Product / Chemical / Category Required System / Plant Type Water Source Capacity / Flow / Pressure Required Quantity / Packing Urgency Preferred Contact Current Problem / Goal Water Test Values

Optional Water Analysis Parameters

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pH TDS (mg/L) Conductivity (uS/cm) Total Hardness as CaCO3 (mg/L) Calcium Hardness (mg/L) Magnesium Hardness (mg/L) Total Alkalinity as CaCO3 (mg/L) Chloride (mg/L) Sulfate (mg/L) Sulphite / Sulfite Residual (mg/L) Phosphate (mg/L) Nitrite Level (mg/L) Nitrate (mg/L) Silica (mg/L) Iron (mg/L) Manganese (mg/L) Turbidity (NTU) SDI TSS (mg/L) COD (mg/L) BOD (mg/L) Residual Chlorine (mg/L) Dissolved Oxygen (mg/L) ORP (mV) Temperature (C) Cycles of Concentration RO Recovery (%) Permeate Conductivity (uS/cm) Oil and Grease (mg/L) Color (Pt-Co) Microbiology / Bacteria (CFU/mL)

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Structure & Safety

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Corrosion Corrosive to metals, skin, or eyes.

FAQ

What is Sodium Sulfite and where is it supplied?

CAS Number: 7757-83-7. Grade: AR Grade. Available in Pakistan. Serving areas include Pakistan.

What are the main applications of Sodium Sulfite?

Application details can be managed from the editor and shown directly on the chemical detail page for Pakistan market buyers.

How can buyers request a quote for Sodium Sulfite?

Use the quote or enquiry action on this page to send a Pakistan market enquiry directly: https://waterchemicalssolution.com/enquiry-portal/?resource_id=2648&product_name=Sodium%20Sulfite&type=Chemical&cas_number=7757-83-7&grade=AR%20Grade&market=Pakistan&serving_areas=Pakistan&supplier_context=ALKEMIST%20|%20Dealer%20/%20Seller%20in%20Pakistan

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