Rock Salt (Sodium Chloride Crystals)
Off-white to greyish crystalline lumps · CAS 7647-14-5
Also see our standard Refined Salt (Sodium Chloride) page.
Overview
Rock Salt is coarse, crystalline sodium chloride in lump form, a low-cost salt for brine making and bulk industrial use. Suraj Chemicals supplies rock salt from Chennai for water-softener regeneration, leather hide curing, textile dyeing and brine preparation. It is packed in 50 kg HDPE bags, with loose or bulk lorry loads on request.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Appearance | Off-white to greyish crystalline lumps |
| Sodium chloride (NaCl, dry basis) | 96.0% Min |
| Moisture | 3.0% Max |
| Water insoluble matter | 1.0% Max |
| Calcium & magnesium (as Ca) | 0.5% Max |
| Sulphate (as SO₄) | 0.8% Max |
| Lump size | 5 – 25 mm (other sizes on request) |
Values above are typical specification values for this grade from manufacturer / published reference data — not a batch-specific lab report. A current certificate of analysis is supplied with every order.
Makes we supply
- Archean Chemical
- Tamil Nadu Salt Corp (TANSALT)
Sourced from India’s leading manufacturers, with consistent quality and full batch traceability. The make supplied depends on stock; ask us if you need a specific one.
Applications
- Water softener and ion-exchange resin regeneration
- Brine preparation for chemical and textile processing
- Hide curing and preservation in leather tanning
- Road and yard de-icing
- Dyeing salt for reactive and direct dyes
Frequently Asked Questions
What is Rock Salt (Sodium Chloride Crystals)?
Rock Salt (Sodium Chloride Crystals) is supplied by Suraj Chemicals as off-white to greyish crystalline lumps, identified by CAS number 7647-14-5. It falls under our Salts & Minerals range — see the Specification Sheet table above for its full characteristics.
What is Rock Salt (Sodium Chloride Crystals) used for?
Typical applications include: Water softener and ion-exchange resin regeneration; Brine preparation for chemical and textile processing; Hide curing and preservation in leather tanning; Road and yard de-icing; Dyeing salt for reactive and direct dyes.
How should Rock Salt (Sodium Chloride Crystals) be stored and handled?
Store in a dry, covered area.
What packaging and pack sizes does Suraj Chemicals supply Rock Salt (Sodium Chloride Crystals) in?
50 kg HDPE bags; loose / bulk supply on request. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Rock Salt (Sodium Chloride Crystals)?
Typically around 24 months from date of manufacture when stored in original, unopened packaging under normal warehouse conditions, consistent with standard industry practice for this class of chemical. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Rock Salt (Sodium Chloride Crystals) hazardous to handle?
The Safety Data Sheet for Rock Salt (Sodium Chloride Crystals) does not classify it as hazardous under GHS. It is still an industrial chemical, so use normal good practice — avoid unnecessary dust, skin and eye contact, store as advised above, and download the Safety Data Sheet (SDS/MSDS) in the sidebar above for full GHS hazard, handling and PPE details.
Is a Specification Sheet, TDS or MSDS available for Rock Salt (Sodium Chloride Crystals)?
Yes — a downloadable Specification Sheet (PDF) with full characteristics and specifications is available above, and a downloadable Safety Data Sheet (SDS/MSDS) for Rock Salt (Sodium Chloride Crystals) is also available above.
Can I get a sample or discuss order quantity for Rock Salt (Sodium Chloride Crystals)?
Yes — use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Rock Salt (Sodium Chloride Crystals).
Actual packaging as supplied by Suraj Chemicals
CAS Number
7647-14-5
Appearance
Off-white to greyish crystalline lumps
Packaging
50 kg HDPE bags; loose / bulk supply on request
Storage & Handling
Store in a dry, covered area.
Shelf Life
Typically around 24 months from date of manufacture when stored in original, unopened packaging under normal warehouse conditions, consistent with standard industry practice for this class of chemical. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.