Chlor-Alkali & Chemical
Chlor-alkali electrolysis, PVC, caustic soda manufacture, chemical feedstock with strict SO₄ / Ca / Mg caps — Siwa rock salt and vacuum-evaporated sea salt, membrane-cell grade SO₄ ≤ 0.08 %, per-lot CoA before B/L.
Salt for chlor-alkali and chemical manufacturing
Chlor-alkali producers (electrolysis of brine to chlorine + caustic soda + hydrogen), PVC manufacturers, soda-ash plants and chemical synthesis operations are the largest consumers of industrial-grade salt worldwide. Egypt Globe Group ships chlor-alkali-grade Egyptian salt from two sources: Siwa Oasis / Qattara Depression crystalline rock salt (≥ 97.00 % NaCl, lump and coarse for brine wells and low-spec electrolysis) and vacuum-evaporated North Sinai / Red Sea sea salt refined to membrane-cell purity (NaCl ≥ 99.3 %, SO₄ ≤ 0.08 %) for chemical plants across the Mediterranean, MENA, Far East and Africa.
A membrane cell does not forgive variation: a single lot with sulphate or hardness above the brine-purification design point shortens membrane life and raises power consumption for months. Many regional suppliers ship from changing pans without a fixed assay window. EGG's Quality Assurance division samples every evaporator batch and every mine lot, and the port laboratory confirms NaCl, Ca, Mg, SO₄ and insolubles per lot before the Certificate of Analysis and B/L are issued. A lot outside the CoA is rejected at the loading port — never re-graded.
Industry requirements
| Requirement | Typical tender specification | How EGG verifies it | Evidence issued |
|---|---|---|---|
| NaCl content | ≥ 97 % (membrane cell, rock feed) or ≥ 95 % (mercury / diaphragm); ≥ 99.3–99.5 % premium membrane grade | Titration at source lab and port lab, per lot | CoA before B/L |
| Sulphate | SO₄ ≤ 0.3 % general; ≤ 0.08–0.15 % membrane / PVC premium — high SO₄ poisons the membrane | Gravimetric BaSO₄ per lot | CoA |
| Hardness | Ca ≤ 0.05 %, Mg ≤ 0.02 % membrane grade; Ca ≤ 0.3 %, Mg ≤ 0.2 % rock feed | Complexometric / ICP per lot | CoA |
| Insolubles | ≤ 0.05 % premium (≤ 0.03 % achieved); ≤ 0.2–0.5 % rock feed — protects the brine purification step | Gravimetric per lot | CoA |
| Particle size | 0.3–2 mm vacuum grades for dissolvers; 5–50 mm lump / coarse for direct-feed brine wells | Sieve analysis per lot | Sieve report |
| Moisture | ≤ 0.3–0.4 % vacuum grades; ≤ 1.5 % rock | Oven-drying per lot | CoA |
| Heavy metals | Pb, As, Cd, Hg reported where the plant's brine spec requires | ICP-MS on request | CoA panel |
| Regulatory | EU REACH registration, SDS | REACH-registered SKUs | REACH statement, SDS |
Matched supply
| Product | Grade / spec headline | Division | Standard | MOQ |
|---|---|---|---|---|
| Premium chlor-alkali low-SO₄ sea salt | NaCl ≥ 99.30 %, SO₄ ≤ 0.08 %, Ca ≤ 0.10 %, Mg ≤ 0.03 %, insolubles ≤ 0.03 %, 0.3–0.8 mm | Salt — sea | Membrane-cell spec, REACH | 240 MT |
| PVC production premium grade | NaCl ≥ 99.20 %, SO₄ ≤ 0.15 %, 0.5–2 mm | Salt — sea | PVC industry spec, REACH | 240 MT |
| Chemical grade pure sea salt | NaCl ≥ 99.50 %, Ca ≤ 0.03 %, Mg ≤ 0.02 %, SO₄ ≤ 0.15 % | Salt — sea | ISO 9001, REACH | 240 MT |
| Chlor-alkali rock salt — membrane grade | NaCl ≥ 99 %, Siwa / Qattara | Salt — rock | ISO 9001, SGS | 240 MT |
| Rock salt — industrial coarse 3–5 mm | NaCl ≥ 97.00 %, insolubles ≤ 0.20 % | Salt — rock | ISO 9001 | 240 MT |
| Rock salt — lump / run of mine 10–50 mm | NaCl ≥ 97.00 %, brine-well feed | Salt — rock | ISO 9001 | 240 MT |
| Rock salt — mine grade wholesale 5–50 mm | NaCl ≥ 97.00 %, SO₄ ≤ 0.40 %, insolubles ≤ 0.25 % | Salt — rock | ISO 9001 | 240 MT |
| Sea salt — industrial granular | NaCl ≥ 97.00 %, 0.5–3 mm, general electrolysis + soda-ash feedstock | Salt — sea | ISO 9001 | 240 MT |
| Salt brine solution 26° Baumé | Dissolved-form delivery, cuts the plant's dissolution step | Salt — rock | ISO 9001 | 240 MT |
| Industrial grade catalogue — 17 SKUs | Rock and sea, chlor-alkali to tanning | Salt | ISO 9001 | 240 MT; vessel 2,000–65,000 MT |
Loading ports: rock from El Dekheila (EGEDK), Alexandria (EGALY), Damietta (EGDAM), Ain Sokhna (EGSOK); sea from Al-Arish (EGAAC), Port Said East (EGPSE), Damietta (EGDAM), Ain Sokhna (EGSOK). Packing: bulk vessel, 1–1.5 MT FIBC, 50 kg PP bags. HS 2501.00.
QA verification chain
-
1
Source
Mine-face assay (Siwa / Qattara) or pan-brine assay (North Sinai / Red Sea) — NaCl, Ca, Mg, SO₄
EvidenceSource lab report
EGG QA on-site lab · every lot
-
2
Processing
Washing, vacuum evaporation or crushing / screening; SO₄ and hardness trended per batch
EvidenceBatch record, sieve analysis
EGG QA · every batch
-
3
Port laboratory
NaCl, moisture, SO₄, Ca, Mg, insolubles, sieve per lot
EvidenceCoA before B/L; out-of-spec lot rejected
EGG port-side QC · every lot
-
4
Independent inspection
Sampling per ISO, draft survey, sealed retained samples, witness SO₄ / hardness test
EvidencePSI certificate
TÜV Austria (EU / GCC), SGS, Intertek, Bureau Veritas · per shipment on request
-
5
Destination acceptance
Plant brine laboratory check against CoA; spec guaranteed at port of loading under the sales contract
EvidenceBuyer acceptance
Buyer · per shipment
Destination markets & compliance
- European PVC manufacturers (Italy, Germany, Spain, Turkey) — REACH-registered grades, EUR.1 origin
- MENA chlor-alkali plants (KSA, Egypt domestic) — SASO / SABER where required, PAFTA origin
- Far East soda-ash producers (China, India) — BIS where applicable, GACC registration not required for industrial grade
- Related: membrane-cell NaCl page · Egypt caustic soda market brief · industrial salt overview · chlor-alkali spec and supplier selection · bulk sodium chloride
Standards & documentation
- ASTM E534 (chemical analysis of NaCl), EU PVC industry standards, GOEIC origin certification (plain-text references)
- ISO 9001:2015 for salt suppliers · HS 2501 reference
- Trade documentation · inspection & quality control · quality & compliance
Request a quote
Send the plant's brine specification (SO₄, Ca, Mg, insolubles) and monthly offtake; the trade desk returns a matched grade, CoA template and lane cost once stock, laycan and freight are confirmed. Request a quote or browse matching products → or request a quote.
Salt for this industry
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Frequently asked questions
Which parameters matter most for chlor-alkali and chemical-grade salt?
What is offered for chlor-alkali and chemical-grade salt?
What testing does chlor-alkali and chemical-grade salt pass before loading?
Which markets and conformity regimes apply to chlor-alkali and chemical-grade salt?
Which specifications govern chlor-alkali and chemical-grade salt?
Other questions? Email our export desk — the export desk replies to every request.