Free qualification samples for labs · Reply within 24 hours

Specialty chemistry,
without the Sigma markup.

Direct-from-manufacturer phosphotungstic acid, silicotungstic acid, sodium tungstate and perchlorates. Same ACS spec as the catalog giants. Two to three times faster. Twenty to thirty percent cheaper. COA and MSDS with every batch.

30+ countries served · 28 years manufacturing · IATA / IMDG / UN compliant · ISO 9001
Certified & compliant
ISO 9001:2015
GIDC Registered
DGFT Export Licence
IATA / IMDG Hazmat
DPIIT Recognised
REACH Ready
Sourcing for battery R&D, histology, fuel cell or analytical work? Tell us the CAS, grade and destination. Paresh replies within one business day.
Flagship Product

Phosphotungstic Acid, made in-house.

The Keggin heteropolyacid used for histology staining, analytical chemistry and Brønsted acid catalysis. Manufactured at our GIDC Vaghodia facility since 1998.

Phosphotungstic acid, fine white crystalline powder manufactured at Dimple Associates Vadodara
CAS Number
1343-93-7
Formula
H₃PW₁₂O₄₀ · xH₂O
Molecular Weight
2880.05 g/mol
Grades
ACS · Bulk · Custom
Packaging
100g to multi-kilo
Lead Time
3 to 5 business days
28+
Years manufacturing
30+
Export countries
< 24h
Inquiry response
100%
Orders shipped with COA

Built for the people actually running the experiments.

Five specialities where Dimple is already a known supplier. Pricing, grades and lead times tuned to how each of these teams actually buys.

Li

Battery R&D

Lithium Perchlorate · CAS 7791-03-9

Ultra-dry grades with water content under 50 ppm for non-aqueous electrolyte work. 3 to 5 day lead times beat Sigma's 10. Lot-level COA with trace metals.

Battery-grade inquiry
Hx

Histology & TEM

Phosphotungstic Acid · CAS 1343-93-7

Reagent-grade PTA for PTAH, trichrome and TEM negative staining. Small quantities (5 g to 100 g) shipped fast. Typically 20 to 40 percent cheaper than Fisher.

Histology sample request
An

Analytical Chem

Magnesium Perchlorate · CAS 10034-81-8

ACS-grade Anhydrone for gas drying. Flexible pack sizes from 25 g to 25 kg. Karl Fischer water content and ICP-MS impurity profiles on every lot.

Analytical-grade quote
Fc

Fuel Cell & Catalysis

Silicotungstic Acid · CAS 12027-43-9

Keggin polyoxometalate with greater than 98 percent heteropolyacid content. Batch-consistent for PEM research. Multi-kilo pricing for scaling experiments.

Fuel-cell grade quote
Px

Pyrotechnics & Defence

Potassium Perchlorate · CAS 7778-74-7

DGFT-licenced dual-use export with full end-use documentation. IATA / UN 1489 packaging. Honest 3 to 4 week lead time including compliance checks.

Restricted export inquiry

Dimple vs the alternatives. Honestly.

You are comparing suppliers across 3 to 5 tabs right now. Here is how Dimple stacks up, no spin.

Compare on Dimple AssociatesDirect manufacturer, India Sigma-Aldrich / FisherGlobal catalog distributor Alibaba directAnonymous Chinese factory
Spec / Purity Matches ACS reagent grade ACS reagent grade, same spec Variable between batches
Lead time 3 to 5 business days (in stock) 7 to 14 days average 10 to 21 days incl. customs
Typical price 20 to 30% below Sigma Premium (list) Cheapest, but see quality row
COA with shipment Every order, lot-traceable Yes, searchable by lot Often, but format varies
Hazmat export docs IATA, IMDG, UN, DGFT licensed Yes Frequently incomplete
Who you talk to The owner, directly Tiered sales, region-specific rep Account manager, language barrier
Supplier track record 28 years, GIDC certified Global Fortune 500 Most under 10 years
Custom grades / small pack Yes, 100 g to multi-kilo Catalog sizes only Bulk focus, rigid MOQs
Independent pricing comparisons available on request. Specs based on public catalog data and verified sample tests.

The catalog.
Ten chemicals. One facility.

Tungsten compounds, molybdenum compounds, and perchlorates. All manufactured in-house at our Vadodara plant. COA and MSDS with every shipment.

Manufactured

Phosphotungstic Acid

CAS 1343-93-7 · MW 2880.05

White crystalline heteropolyacid. Histology staining, analytical chemistry, Brønsted acid catalysis.

Manufactured

Silicotungstic Acid

CAS 12027-43-9

Keggin polyoxometalate. Catalysis, electrochemistry, fuel cells, analytical precipitant.

Manufactured

Phosphomolybdic Acid

CAS 51429-74-4

TLC staining agent. Detection of reducing sugars, alkaloids, lipids. Selective oxidation catalyst.

Export ready

Sodium Tungstate

CAS 13472-45-2

Flame retardants, corrosion inhibitors, analytical chemistry, catalyst in organic synthesis.

Export ready

Sodium Perchlorate

CAS 7601-89-0

Non-aqueous electrolytes, ion chromatography, specialty research. Anhydrous and monohydrate grades.

Battery grade

Lithium Perchlorate

CAS 7791-03-9

Battery electrolyte, Lewis acid catalyst. Ultra-dry grades with water content under 50 ppm.

ACS grade

Magnesium Perchlorate

CAS 10034-81-8 · Anhydrone

Extreme desiccant for analytical gas drying. Superior capacity vs silica gel and calcium chloride.

Export ready

Barium Perchlorate

CAS 13465-95-7

Oxidizer for pyrotechnics, specialty chemical synthesis, and analytical reagent applications.

Dual-use licensed

Potassium Perchlorate

CAS 7778-74-7

Oxidizer for pyrotechnics, solid rocket propellants, thyroid treatments, and airbag inflators.

Export ready

Zinc Perchlorate

CAS 13637-61-1

Lewis acid catalyst for organic synthesis. Electrochemical research and specialty industrial applications.

Small outfit. Long track record.

Dimple has operated out of the same GIDC Vaghodia manufacturing facility in Vadodara since 1998. No trading desk, no white-label distributor, no outsourced production. When you order, you are talking to Paresh, the chemist who will personally sign off on your batch.

PP
Paresh Prajapati
Founder & Chief Chemist · Dimple Associates, est. 1998
Runs production, QC and export compliance personally. Available on WhatsApp or phone for technical questions the same day you ask them. No call centre in the middle.
In-house QC on every lot
ICP-MS for trace metals, Karl Fischer for moisture, XRD for crystalline phase, HPLC where the product calls for it. Nothing ships without the profile.
Lot-level traceability
Every COA ties back to the raw-material batch and production date. Makes requalification and regulatory audits a non-event for your QA team.
Export packaging done right
UN-rated containers, inner packaging per hazmat class, absorbent lining for liquids. IATA and IMDG compliant so the shipment clears customs on the first attempt.
Paperwork with the pallet
COA, SDS, TDS, shipper declaration, packing list and commercial invoice travel with the shipment. Dual-use declarations on request for DGFT-licenced products.
Grades from gram to tonne
100 g qualification samples through multi-tonne bulk. Custom grades and packaging for labs whose spec does not fit the catalog sizes.
Direct line to the chemist
Technical questions go to Paresh, not a call centre. WhatsApp, phone or email, with a same-day reply during Vadodara business hours.

Shipped worldwide. Documented correctly.

Hazardous chemical exports handled the way customs officers expect them. IATA dangerous goods, IMDG for sea, UN classification. Every single order.

Vadodara

UN-rated packaging

Certified containers, inner packaging per hazmat class, absorbent lining for liquids.

Full documentation

COA, MSDS, shipper declaration, packing list, commercial invoice. Included with every export order.

30+ countries served

USA, UK, Germany, Japan, South Korea, UAE, Australia. Active shipments on every continent.

Air and sea freight

DHL, FedEx, air cargo, sea freight. Sample quantities to full pallets. Lead times quoted at order.

Free samples

Qualification samples for most products. Mail to QC, decide after testing, scale only if it works.

Compliance ready

IATA dangerous goods, IMDG for sea, UN classification, DGFT restricted exports. Handled on the first attempt.

Buyers keep coming back. Here is why.

5.0
★★★★★
Verified buyers · Google, IndiaMart, GuideChem
★★★★★
We have sourced phosphotungstic acid from Dimple for over four years. Purity is consistently high and documentation is always ready for international customs. A rare find.
R. Mehta
Research Chemist, Southeast Asia · Verified IndiaMart buyer
★★★★★
We needed lithium perchlorate in a specific grade for battery research. Paresh responded the same day and sent a sample within the week. No other supplier could match the speed or price.
S. Kimura
Materials Lab, Japan · Direct repeat customer
★★★★★
Sourced silicotungstic acid for fuel cell research. Exceptional purity, proper MSDS, fast DHL dispatch. Will be ordering again next quarter without question.
A. Bergmann
Electrochemistry Researcher, Germany · Verified GuideChem buyer
Add Dimple to your approved suppliers Read Google reviews

Questions, answered honestly.

Do you manufacture or just trade / resell?

We manufacture everything in-house at our own GIDC Vaghodia facility in Mota Motipura, Vadodara. There is no middleman. You are buying directly from the manufacturer.

Can I get a free sample before committing to a bulk order?

Yes. We provide qualification samples (typically 10 g to 50 g) for labs evaluating grade compatibility. Submit a sample request with your application and QC requirements. Most samples ship within 3 business days.

How does Dimple's pricing actually compare to Sigma-Aldrich or Fisher?

For matched specs, Dimple typically lands 20 to 30 percent below Sigma-Aldrich catalog list price, with lead times of 3 to 5 business days for in-stock items. Pricing depends on quantity, grade, destination and incoterm, but we will send an honest comparison on request.

Can you provide a Certificate of Analysis (COA)?

Yes. A lot-traceable COA is provided with every order as standard. MSDS / Safety Data Sheet is available for all products on request, typically delivered before you place the order so your QC team can review it.

How do you handle hazardous chemical shipments internationally?

Twenty-eight years of experience exporting hazardous specialty chemicals. Products are packaged and labelled in compliance with UN, IATA and IMDG regulations. Full hazardous goods documentation, including shipper declaration, is prepared for every export order.

Can you handle restricted end-use materials like potassium perchlorate?

Yes. We hold a DGFT export licence for dual-use chemicals and comply with end-use verification and documentation requirements for each destination country. Lead times for restricted exports typically include a 3 to 4 week regulatory buffer, which we will confirm at inquiry.

What payment terms do you offer?

T/T (bank wire transfer) for international orders. For domestic Indian buyers, NEFT / RTGS and UPI are accepted. Payment terms are discussed on a per-order basis and we are flexible with repeat customers.

How quickly can you dispatch an order?

Standard in-stock products dispatch within 3 to 5 business days after payment confirmation. Custom quantities, restricted exports, or bulk orders may require additional lead time, which is communicated at order confirmation.

Ready when you are

Source specialty chemistry, from the manufacturer.

Tell us what you need. Product, quantity, grade, destination. Paresh replies personally within 24 hours.

No middlemen · Direct from factory · 28+ years of export experience
Verified on

A real manufacturer, not a middleman.

Dimple Associates has been listed on India's leading B2B and business directories for years. Every profile links back to this same factory, same founder, same phone number.

Prefer to speak directly? Call +91 99250 03910 or WhatsApp Paresh on +91 99250 03910.

Let us know what you need. We reply today.

Sample request or bulk quote, your message goes directly to Paresh Prajapati, the owner. Typical response time is under 24 hours.

Factory
23/30 Prince Ind. Estate
Mota Motipura, Ta. Savli
Vadodara 391520, Gujarat, India

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