Technical documentation & guides
We're building out a self-serve library of technical data sheets, safety data sheets and chemical guides. Until it's live, our team can send you anything you need directly.
Technical & Safety Data Sheets (TDS / SDS)
Product-specific TDS and SDS documents are available on request — just tell us which product(s) you need, and our team will send the current documents straight to your inbox.
Request TDS / SDS50 practical buying, handling, compliance and dosing guides
Straight answers to the questions we get asked most often on calls — now written up so you don't have to wait for one. Filter by topic or search below.
How to Choose a Coagulant for Effluent Treatment: Alum vs PAC vs Ferric Chloride
A practical comparison of aluminium sulphate (alum), poly aluminium chloride (PAC) and ferric chloride for effluent and water treatment coagulation — dosing, pH range, sludge and when to use each.
AlkalisCaustic Soda Grades Explained: Flakes, Lye and Caustic Potash — Which to Buy
Sodium hydroxide (caustic soda) flakes vs liquid lye vs caustic potash (KOH) — uses, storage, handling and how to choose the right grade for your process.
Disinfection & ChlorinationBleaching Powder vs Sodium Hypochlorite: Choosing the Right Chlorination Chemical
Stable bleaching powder, high-strength calcium hypochlorite and liquid sodium hypochlorite compared — available chlorine %, shelf life, dosing and storage for water treatment and pool disinfection.
Buyer's GuideHow to Read a Certificate of Analysis (Test Report) for Industrial Chemicals
What Characteristics, Specifications and Results mean on an industrial chemical Certificate of Analysis (COA) or test report, and what to check before you place an order.
Safety & HandlingSafe Storage and Handling of Corrosive Industrial Chemicals: A Practical Checklist
A practical checklist for storing and handling corrosive industrial chemicals safely — segregation, container compatibility, PPE, spill containment and labeling.
Buyer's GuideTDS vs MSDS vs COA: What Each Document Tells a Chemical Buyer
The difference between a Technical Data Sheet (TDS), Safety Data Sheet (MSDS/SDS) and Certificate of Analysis (COA) for industrial chemicals, and which one you actually need.
Buyer's GuideCitric Acid: Anhydrous vs Monohydrate — Which Grade Do You Need?
Citric acid anhydrous vs monohydrate compared — moisture content, shelf life, dry-blend vs liquid use, and how to choose the right form for your process.
Buyer's GuideIsopropyl Alcohol (IPA) Purity Explained: What 99.8% Actually Means
What IPA purity percentage means for cleaning, electronics and pharma use, how it differs from diluted rubbing-alcohol products, and what to check before ordering.
Buyer's GuideSilica Gel Blue vs White Indicating — Which Desiccant to Choose
Blue (cobalt-indicating) silica gel vs plain white silica gel compared — how the colour-change indicator works, regulatory considerations, and which to buy.
SurfactantsSLES vs SLS: Choosing the Right Sulphate Surfactant for Your Formulation
Sodium Lauryl Ether Sulphate (SLES) vs Sodium Lauryl Sulphate (SLS) compared — mildness, foam character, solubility and where each is typically used.
Buyer's GuideCalcium Chloride Grades: Industrial 94% vs Food-Grade — What's the Difference
Industrial-grade calcium chloride (94% granules) vs food-grade calcium chloride compared — purity, permitted uses and why the grade matters.
Desiccants & AdsorbentsChoosing a Desiccant: Silica Gel vs Activated Alumina vs Zeolite
Silica gel, activated alumina and zeolite molecular sieve compared as industrial desiccants — adsorption capacity, regeneration and typical applications.
Water TreatmentAnionic vs Cationic vs Nonionic Polyelectrolytes: How to Choose
How to choose between anionic, cationic and nonionic polyelectrolyte flocculants for water and wastewater treatment, based on particle charge and application.
AlkalisSoda Ash Light vs Dense: What's the Difference and Which Do You Need
Light soda ash vs dense soda ash (sodium carbonate) compared — bulk density, dissolution rate, dust and typical applications for each.
Buyer's GuideSodium Metabisulphite: Food Grade vs Industrial (Non-Food) Grade
Food-grade sodium metabisulphite (SMBS, E223) vs industrial/technical grade compared — where each is used and why the grade distinction matters.
Solvents & PlasticizersDOP vs DBP vs DEP: Choosing the Right Phthalate Plasticizer
Dioctyl phthalate (DOP), dibutyl phthalate (DBP) and diethyl phthalate (DEP) compared — plasticizing efficiency, volatility and typical uses in PVC and other formulations.
Safety & HandlingSafe Handling of Strong Mineral Acids: Hydrochloric, Nitric and Phosphoric
Practical safe-handling guidance for hydrochloric, nitric and phosphoric acid — PPE, ventilation, dilution direction, and what to have on hand before you start.
Safety & HandlingUnderstanding GHS Hazard Pictograms on Chemical Labels
A quick-reference guide to the GHS hazard pictograms found on industrial chemical labels and SDS documents, and what each one actually means for handling.
Safety & HandlingA Practical PPE Guide for Industrial Chemical Handling
What personal protective equipment to use for handling common industrial chemical categories — acids, alkalis, oxidizers and solvents — and why.
Safety & HandlingSpill Response Basics for Common Industrial Chemicals
A practical first-response checklist for acid, alkali and solvent spills in an industrial setting — containment, neutralization and when to evacuate.
Safety & HandlingSafe Storage of Oxidizing Chemicals: Bleaching Powder, Hypochlorite and Hydrogen Peroxide
Storage guidance for oxidizing chemicals like calcium hypochlorite, sodium hypochlorite and hydrogen peroxide — segregation, temperature control and fire risk.
Safety & HandlingUnderstanding Flash Points and Flammable Solvent Storage
What a solvent's flash point means in practice, and how to store flammable industrial solvents like acetone, toluene and IPA safely.
Safety & HandlingChemical Compatibility: What Not to Store Together
A practical guide to chemical storage segregation — which industrial chemical classes should never share a storage area, and why.
Safety & HandlingStoring Hygroscopic Chemicals: Keeping Powders and Flakes From Caking
Why hygroscopic industrial chemicals like caustic soda flakes and calcium chloride absorb moisture, and practical storage steps to prevent caking and waste.
Regulatory & ComplianceHazardous Chemical Rules in India: A Plain-English Overview for Buyers
An overview of India's Manufacture, Storage and Import of Hazardous Chemicals Rules and what they generally mean for industrial chemical buyers and storage sites.
Regulatory & ComplianceUnderstanding the 16 Sections of a Safety Data Sheet (SDS)
A section-by-section guide to what's in a standard GHS Safety Data Sheet (SDS/MSDS), and which sections matter most for storage, transport and emergency response.
Regulatory & ComplianceBIS Certification & Indian Standards for Industrial Chemicals: What Buyers Should Know
What BIS (Bureau of Indian Standards) certification and IS standards generally mean for industrial chemical buyers, and when to ask a supplier for it.
Regulatory & ComplianceUnderstanding HSN Codes and GST for Industrial Chemicals: A Practical Guide
How HSN classification and GST generally apply to industrial chemical purchases in India, and why confirming the exact code and rate with official sources matters.
Regulatory & ComplianceFSSAI Compliance for Food-Grade Chemical Buyers: What to Check
What FSSAI licensing generally means for buyers of food-grade industrial chemicals in India, and what documentation to request from your supplier.
Regulatory & CompliancePollution Control Board Consent Basics for Effluent Treatment Chemical Users
A plain-English overview of Pollution Control Board consent requirements relevant to industries using effluent treatment chemicals in Tamil Nadu and beyond.
Regulatory & ComplianceImport Documentation Checklist: What to Ask an Overseas Chemical Supplier For
A practical checklist of documents to request from an overseas industrial chemical supplier before import — quality, safety and customs paperwork.
Regulatory & ComplianceUnderstanding Shelf Life and Retest Dates on Industrial Chemicals
What a shelf life or retest date on an industrial chemical actually means, why some products need retesting rather than automatic disposal, and how to manage stock.
Technical ReferenceUnderstanding CAS Numbers: What They Are and Why They Matter
What a CAS Registry Number is, why it's more reliable than a product name for identifying a chemical, and how to use it when comparing suppliers.
Technical ReferenceReading a Chemical Formula and Molecular Weight: A Quick Primer
A quick, practical explanation of chemical formulas and molecular weight for buyers who need to read a spec sheet without a chemistry background.
Technical ReferenceWhat Is pH and How Do Industrial Chemicals Affect It?
A practical explanation of the pH scale for industrial buyers, and which common chemicals raise or lower pH — useful for water treatment and process control.
Water TreatmentWater Hardness Explained: Causes and How It's Treated
What causes water hardness, why it matters for industrial processes, and which chemicals are commonly used to treat or manage it.
Technical ReferenceTechnical Grade vs Laboratory (AR) Grade vs Food Grade: What the Labels Mean
The practical difference between technical grade, analytical reagent (AR) grade and food grade chemicals, and how to choose the right one for your use.
Technical ReferenceUnderstanding Assay / Purity Percentage on a Spec Sheet
What the assay or purity percentage on an industrial chemical spec sheet actually measures, and how it affects dosing and cost comparisons between suppliers.
Water TreatmentWhat "Non-Ferric" Means in Alum — and Why It Matters for Treated Water
What the "non-ferric" designation on aluminium sulphate (alum) means, why iron contamination matters in water treatment, and what to check when buying alum.
Technical ReferenceUnderstanding Moisture Content and Loss on Drying Specs in Industrial Powders
What moisture content or loss-on-drying specs mean on an industrial chemical spec sheet, why they matter for hygroscopic powders, and how to interpret the numbers.
Industry GuideChemicals Used in Textile Dyeing and Processing: An Overview
An overview of the industrial chemicals commonly used across textile pre-treatment, dyeing and finishing — from caustic soda to optical brighteners.
Industry GuideChemicals Used in Electroplating: A Practical Primer
An overview of the industrial chemicals commonly used in electroplating pre-treatment, plating baths and effluent treatment.
Industry GuideWater Treatment Chemicals for Cooling Towers
An overview of the chemical treatment programs used in industrial cooling towers — scale control, biological growth, corrosion inhibition and blowdown chemistry.
Industry GuideChemicals Used in Soap and Detergent Manufacturing
An overview of the raw materials commonly used in soap and detergent manufacturing — surfactants, builders, alkalis and functional additives.
Industry GuidepH Correction and Disinfection Chemicals for Swimming Pools
An overview of the chemicals commonly used for swimming pool disinfection and pH balance, and how to think about choosing between chlorine sources.
Industry GuideChemicals Used in Leather Tanning: An Overview
An overview of the industrial chemicals commonly used across leather tanning process stages — soaking, liming, tanning and finishing.
Industry GuideBoiler Water Treatment Chemicals Explained
An overview of the chemistry behind boiler water treatment — oxygen scavenging, scale prevention and pH/alkalinity control — and the chemicals commonly used.
Industry GuideChemicals Used in Paints and Coatings Manufacturing
An overview of the industrial chemicals commonly used in paint and coatings formulation — solvents, extenders, additives and pigments.
Industry GuideFood-Grade Chemicals: Common Uses in Food Processing
An overview of common food-grade industrial chemicals — citric acid, calcium chloride, SMBS and more — and the roles they play in food and beverage processing.
Water TreatmentChemicals for Effluent Treatment Plants (ETP): An Overview
An overview of the chemical treatment stages in a typical industrial effluent treatment plant — coagulation, pH correction, disinfection and sludge management.
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Supplier Pages
Caustic Soda Supplier in Chennai
Grades, applications & how to order →
Sodium Metabisulfite Supplier in India
Grades, applications & how to order →
SLS (Sodium Lauryl Sulphate) Supplier in Chennai
Grades, applications & how to order →
PAC (Poly Aluminium Chloride) Supplier in Chennai
Grades, applications & how to order →
Citric Acid Supplier in India
Grades, applications & how to order →
Calcium Chloride Supplier in Chennai
Grades, applications & how to order →
IPA (Isopropyl Alcohol) Supplier in India
Grades, applications & how to order →
Glycerine Supplier in Chennai
Grades, applications & how to order →
Frequently Asked Questions
Common questions on ordering, packaging and documentation — for anything else, our team is a call or WhatsApp away.
What is the minimum order quantity (MOQ)?
MOQ varies by product — from lab/sample quantities for trial and testing up to full truckload volumes for regular industrial supply. Share your product and approximate quantity through our Request a Quote page or WhatsApp, and we'll confirm MOQ and pricing for that specific chemical.
Do you deliver outside Chennai and Tamil Nadu?
Yes. Suraj Chemicals dispatches pan-India from our Chennai warehouses, in addition to serving customers across Chennai and South India directly.
What packaging options are available?
Packaging depends on the product — common options include HDPE drums, multi-layer bags, jerry cans and bulk/tanker supply for larger volumes. Each product page lists its standard packaging; let us know if you need a specific pack size for your process.
Do you provide TDS, SDS and Certificates of Analysis?
Yes. Technical Data Sheets (TDS), Safety Data Sheets (SDS) and batch-specific Certificates of Analysis / Test Reports are available on request for the products we supply — just tell us which product(s) you need documentation for.
Are Suraj Chemicals' products certified?
Suraj Chemicals is an ISO 9001:2015 certified company and an authorized channel partner for Grasim Industries (Aditya Birla), BASF (Germany), Godrej Industries and SNF (France). Certification and test-report documentation for a specific product is available on request — see our Certifications page for details.
Do you supply food-grade chemicals?
Yes, we stock a number of food-grade products — including food-grade calcium chloride, citric acid and food-grade sodium metabisulphite (E223) — alongside their industrial-grade equivalents. Always specify food grade explicitly when ordering for a food or beverage application.
Can you source a chemical that isn't listed on your website?
In most cases, yes. We supply a wider range of industrial chemicals than what's listed online — send us your requirement through the Request a Quote page or Contact page and we'll get back to you with availability and pricing.
How do I request a quote or place an order?
Use the Request a Quote page, call or WhatsApp us directly, or email sales@surajchemicals.com. Tell us the product, quantity and delivery location, and our team will follow up with pricing and next steps.
What are your business hours?
Our team is available Monday to Saturday, 10:00 AM to 7:00 PM. You can also reach us anytime by WhatsApp or email and we'll respond during business hours.
Can't find what you're looking for?
Call, WhatsApp or email us — we typically respond the same business day.