APP-01
Textile Mercerization & Yarn Pre-treatment
Crucial for cellulosic fiber swelling, improving cotton tensile strength, luster, dye affinity, and dimensional stability in high-speed spinning mills.
Packaging schematic · not to scale ● Stock line
Dispatch record Ready stock
- Hub
- Phase II, Ankleshwar GIDC Terminal
- Minimum order
- 2,000 kg (2 Metric Tons) / Full 20ft Container (20-25 MT)
- Release
- Lot COA before dispatch
- Shelf life
- 24 months in sealed original packaging
Packaging drawings are schematic. The actual pack, liner and closure are confirmed on the proforma and may vary by source lot.
CAS 1310-73-2 Alkalies & Bases 2 grades
Caustic Soda Flakes (Rayon Grade)
NaOH · MW 39.997 g/mol · Uniform
Supplied as uniform, white, hygroscopic deliquescent flakes at a guaranteed assay of ≥ 99.5% NaOH. Available in 2 grades and 2 standard pack configurations, with lot-specific analytical release from the Ankleshwar terminal.
Commercial synonyms
Sodium HydroxideLye FlakesCaustic AlkaliHydrate of Soda
- Standard assay
- ≥ 99.5% NaOH
- Hazard class
- Class 8 (Corrosive Substance, Packing Group II)
- UN transport
- UN 1823 (SODIUM HYDROXIDE, SOLID)
- Pack formats
- 2 standard
- Dispatch
- 24 hr stock release
- Documentation
- COA + SDS + invoice
● In stock GST invoice Weighbridge slip Hazira / JNPT export
01 Technical data sheet
The analytical limits, line by line.
Guaranteed specification limits for the standard grade, with the method used to verify each parameter. The lot COA reports the measured result against these limits.
Document TDS-CAUSTIC-SODA-FLAKES-2026 Revision 04 Issued 06 Nov 2026 Controlled copy
| Analytical parameter | Guaranteed specification | Method |
|---|---|---|
| Physical appearance | White deliquescent flat flakes, free from foreign matter | Visual / reference standard |
| Chemical assay (dry basis) | Min. 99.50% w/w NaOH | Potentiometric titrimetry / GC |
| Moisture / water content | Max. 0.20% | Karl Fischer coulometry / loss on drying |
| Insoluble matter | Max. 0.02% in cold water | Gravimetric micro-filtration |
| Chlorides (as Cl) | Max. 0.03% (as NaCl) | Turbidimetric spectrophotometry |
| Sulphates (as SO4) | Max. 0.02% (as Na2SO4) | Turbidimetric precipitation / ICP-OES |
| Iron (as Fe) | Max. 10 ppm (as Fe) | Atomic absorption spectrometry |
| Heavy metals (as Pb) | Max. 5 ppm | ICP-MS |
| pH value | 14.0 (1 M aqueous solution) | Calibrated glass-electrode meter @ 25°C |
| Boiling point | 1,388 °C | Distillation thermometry |
| Melting / crystallisation point | 318 °C | Capillary melting apparatus |
| Specific gravity / density | 2.13 g/cm³ | Precision pycnometer @ 20°C |
| Solubility profile | 111 g/100 mL water at 20°C (highly exothermic) | Ph. Eur. / BIS solubility screen |
Need the signed document? The full TDS and a current lot COA are issued by the technical desk. State the grade, pack and destination so the correct revision is attached.
Request TDS + COA 02 Application
Where Caustic Soda Flakes earns its place.
The commercial functions this grade supports, and the process reason it is specified rather than a substitute.
APP-02
Industrial Effluent Neutralization (ETP)
Provides rapid, highly cost-effective alkaline pH correction for acidic process effluents across chemical, electroplating, and pharmaceutical industrial estates.
APP-03
Alumina Extraction & Bayer Metallurgy
Dissolves aluminum oxide minerals from raw bauxite ore under elevated temperatures and pressures to produce high-purity sodium aluminate liquor.
Sector fit
Industries using this line
03 Packaging
Packs that fit the plant.
P01
Stock 50 kg Laminated Woven Polypropylene Bags
UN-rated closure · tamper-evident seal
P02
On order 1,000 kg UN-Rated Bulk Bags
UN-rated closure · tamper-evident seal
Custom packing
Private-label bags, customer-specified liners and returnable IBC programmes are available for annual volumes. Trial lots can be supplied in 500 g to 5 kg sample packs.
04 Handling & hazard
Respect the label.
GHS signal word
DANGER
Hazard statements
- H314: Causes severe skin burns and serious eye damage
- H290: May be corrosive to metals
Required PPE
- Chemical splash goggles & full face shield
- Heavy-duty butyl or neoprene chemical gloves
- Corrosive-resistant rubber apron and boots
- Emergency eye wash shower accessibility
Storage & compatibility
Store in dry warehouse elevated on pallets. Keep bags sealed away from acids and organic compounds. Reacts violently with water generating intense heat.
Incompatible: Acids · Aluminum, Zinc, Tin (releases explosive hydrogen gas) · Organic peroxides · Moisture.
Shelf life: 24 months in sealed original packaging
05 Supply & logistics
From the terminal to the plant.
The commercial path for this line: stock release from Ankleshwar, domestic road freight, or export stuffing through Hazira, JNPT or Mundra.
- Minimum order
- 2,000 kg (2 Metric Tons) / Full 20ft Container (20-25 MT)
- Dispatch hub
- Phase II, Ankleshwar GIDC Terminal
- Stock release
- Within 24 hours of document clearance
- Export gateways
- Hazira 75 km · JNPT 320 km · Mundra 440 km
LOG-01 / Load estimator
Packaging & container load
Calculates units, pallets, gross weight and 20ft FCL utilisation from the selected pack.
20 MT / 20000 kg
1 MT min.20ft FCL ≈ 20–22 MT50 MT
Pack format
Consignment output Dispatch ready
Units required
400
50 kg
Gross weight
20.18MT
20,180 kg incl. tare
Pallets
20
1.2 × 1.0 m standard
20ft FCL utilisation0.91 × FCL · 91%
0 MTPayload limit ≈ 21.5 MT
Dispatch from Ankleshwar GIDC; container stuffing via the Hazira partner CFS. Bulk tankers of 20–30 MT cover Gujarat, Maharashtra and Madhya Pradesh.
Carry this specification into an RFQ
06 Same classification
Related lines.
Alkalies & Bases CAS 584-08-7
Potassium Carbonate (Granules)
K2CO3 · ≥ 99.0% K2CO3
25 kg Multi-wall HDPE Bags →
Alkalies & Bases CAS 584-08-7
Potassium Carbonate (Fine Powder)
K2CO3 · ≥ 99.5% K2CO3
25 kg Sealed Moisture-Barrier HDPE Bags →
Alkalies & Bases CAS 1310-58-3
Potassium Hydroxide Flakes 90%
KOH · ≥ 90.0% KOH
25 kg HDPE Bags →
Line-specific questions
Caustic Soda Flakes — buyer questions
Documentation, pack choice, storage and custom specifications for this line.
Ask the technical desk01 What documentation ships with Caustic Soda Flakes (Rayon Grade)?
Every dispatch carries a lot-specific certificate of analysis, the current safety data sheet revision, a GST tax invoice, a packing list and the origin weighbridge slip. Export consignments add an IMDG declaration and, on request, a certificate of origin. The COA is issued against the actual batch number and retained in our archive for twelve months.
02 Which pack format should we specify?
Stock options for this line include 50 kg Laminated Woven Polypropylene Bags; 1,000 kg UN-Rated Bulk Bags. Trial work usually starts with a carboy or drum; production volumes move to IBCs, jumbo bags or tankers where the product and site permit. The load estimator below converts tonnage into units, pallets and container utilisation for each pack.
03 How should Caustic Soda Flakes (Rayon Grade) be stored?
Store in dry warehouse elevated on pallets. Keep bags sealed away from acids and organic compounds. Reacts violently with water generating intense heat. Recommended shelf life: 24 months in sealed original packaging. Incompatible materials include Acids; Aluminum, Zinc, Tin (releases explosive hydrogen gas); Organic peroxides; Moisture.
04 Can you supply against a customer-specific specification?
Yes, for repeat volumes. Send the assay, moisture, trace-metal and packing limits to the technical desk. We check them against the source plant’s capability, run a trial lot where needed, and hold the agreed limits in the annual supply agreement. Standard stock material remains available in parallel.
07 Procurement desk
Put a specification in front of a person.
Three short steps — product, volume, company — route your requirement to the Ankleshwar desk with the grade and packing already attached. Quotes are issued against a real lot, not a price list.
Response
Formal proforma within one business day for stock lines.
Samples
Technical trial samples with COA and SDS on request.
Direct line
Monday – Saturday: 08:30 AM to 07:30 PM IST
RFQ / commercial desk
Request for quotation
- 01Chemical
- 02Volume
- 03Buyer
Step 01 / Specification
Chemical & grade
- CAS
- 1310-73-2
- Assay
- ≥ 99.5% NaOH
- Formula
- NaOH
- Dispatch
- Ankleshwar GIDC
Not sure which grade fits the process? Add the application in the final remarks field.
Commercial desk · APEX CHEMTECHQuotation · COA · SDS