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Apex Material Science · Direct Refinery Supply

From Raw to Remarkable.

Beyond open-market broker grades: Direct Tier-1 refinery supply for elemental Rubidium (Rb ≥99.995%) and Cesium (Cs ≥99.995%) with pre-contract factory audits, plus 2,500 kg of 99.9998% (5N8) Isotope Copper Powder ready for immediate inspection in our Hong Kong bonded warehouse.

ISOTOPE COPPER (HK) 2,500 kg Physical Stock
PURITY ≥99.995% 4N5 / 5N8
PACKAGING UN 4.3 Swagelok 316L
TERMS 50/50 T/T Pre-Ship SGS
RubidiumRb ≥99.995% CesiumCs ≥99.995% Isotope CopperCu ≥99.9998%
Request Formal RFQ Explore Materials
EXCLUSIVE ALLOCATION · 3 STRATEGIC ELEMENTS

Strategic Materials

Ultra-high-purity alkali metals and non-radioactive isotope copper. Verified by ICP-MS assay and packed to UN Class 4.3 requirements.

ELEMENT 37 · GROUP 1 · PERIOD 5

Rubidium Metal Rb ≥99.995%

YS/T 1246-2018 CAS 7440-17-7 UN 1423 Class 4.3 PG I Tier-1 Direct Allocation
Rubidium Metal Crystal Ampoule 01 · Element Crystal (Rb 99.995%)
AUTHENTICATED ICP-MS SCAN (正本) Standard YS/T 1246-2018 · Lot Verification JC-ICP-03
COA PDF [PDF] Compliance Dossier [PDF]

Ultra-high purity elemental rubidium conforming to YS/T 1246-2018 standards. Engineered strictly for quantum optics, laser cooling, atomic frequency standards, and advanced defense research. Dispatched under pressurized 99.999% dry argon in 316L stainless steel chambers or vacuum-sealed borosilicate ampoules.

Purity Grade ≥99.995% (4N5)
Total Impurities <50 ppm Metallic Sum
Physical Constants m.p. 39.3°C · 1.53 g/cm³
Supply Formats 5kg SS Cylinder / 5g–100g Ampoule
MOQ & Dispatch 500g+ / Bulk (5–7 Days)
Commercial Settlement 50/50 T/T Pre-Ship SGS Inspection
STEP 01 · CONTAINMENT
316L Dual Swagelok

Heavy-gauge stainless steel cylinder with dual valves & optical quartz inspection window, or flame-sealed ampoules.

STEP 02 · ATMOSPHERE
Argon Overpressure

Pressurized with 99.999% dry argon (inert atmosphere, minimal oxygen/moisture ingress).

STEP 03 · ARMORING
UN Flight Case

Riveted heavy aluminum transit case with laser-cut shock-absorbent EVA foam conforming to UN 1423 Class 4.3 PG I.

Rb≥99.995%
Cs<10 ppm
K2.0 ppm
Na1.0 ppm
Mg<1.0 ppm
Pb<1.0 ppm
Al<1.0 ppm
Ca<1.0 ppm
Direct Refinery Allocation Pre-contract factory site visits hosted for institutional buyers · Quoted by formal FCO
Inquire about Rubidium
ELEMENT 55 · GROUP 1 · PERIOD 6

Cesium Metal Cs ≥99.995%

YS/T 1245-2018 CAS 7440-46-2 UN 1407 Class 4.3 PG I Golden Crystalline Phase
Cesium Metal Quartz Viewport 01 · Golden Crystal View-Port
AUTHENTICATED ICP-MS SCAN (正本) Standard YS/T 1245-2018 · Lot CS-4N5 Active
COA PDF [PDF] Compliance Dossier [PDF]

Elemental cesium metal conforming to YS/T 1245-2018. Renowned for its low melting point (28.5°C) and supreme electropositive reactivity. Essential for atomic clock frequency standards, magnetometers, and specialized photoelectric cathodes. Shipped in dedicated Swagelok-equipped cylinders or sealed ampoules.

Purity Grade ≥99.995% (4N5)
Total Impurities <50 ppm Metallic Sum
Physical Constants m.p. 28.5°C · 1.93 g/cm³
Supply Formats 5kg SS Canister / 5g–100g Ampoule
MOQ & Dispatch 500g+ / Bulk (5–7 Days)
Commercial Settlement 50/50 T/T Pre-Ship SGS Inspection
STEP 01 · CONTAINMENT
Quartz Viewport Canister

316L SS cylinder with integrated optical quartz viewport to inspect golden crystallization without breaching seal.

STEP 02 · ATMOSPHERE
Argon Overpressure

Pressurized under 99.999% dry argon (zero oxygen / zero moisture contamination).

STEP 03 · ARMORING
UN Flight Case

Riveted tamper-evident flight case certified for UN 1407 Class 4.3 PG I hazardous air/sea cargo.

Cs≥99.995%
Rb<20 ppm
K3.0 ppm
Na1.5 ppm
Mg<1.0 ppm
Pb<1.0 ppm
Al<1.0 ppm
Fe<1.0 ppm
Direct Refinery Allocation Pre-contract factory site visits hosted for institutional buyers · Quoted by formal FCO
Inquire about Cesium
ISOTOPE CU-63 / CU-65 · CAS 7440-50-8 · HS 7406.10

Isotope Copper Powder Cu ≥99.9998% (5N8)

HK Bonded Stock: 2,500 kg Non-Radioactive SGS On-Site Inspection
Hong Kong Bonded Warehouse Master Carton 01 · Copper Ampoules in HK Warehouse
AUTHENTICATED ICP-MS SCAN (正本) Standard GOST 859 / Apex 5N8 · Batch 2026-CU5N8
COA PDF [PDF] Inspection Protocol [PDF]

Non-radioactive isotope copper powder (Cu-63/Cu-65) with chemical purity exceeding 99.9998% (5N8). Oxygen content below 1 ppm. Spheroidal micro-particles (D50 4.1µm). Supplied in sealed glass ampoules (190 mm × 40 mm, 200 g net each), 5 ampoules per 1 kg package box, 36 boxes per 36 kg export carton (400 × 500 × 600 mm). 2,500 kg physical stock stored in Hong Kong bonded warehouse ready for immediate buyer sampling, SGS verification, and settlement.

Chemical Purity ≥99.9998% (5N8)
Oxygen Content <1 ppm Extreme Inert Seal
Particle Distribution D50 4.1 µm · Spheroidal
Current Stock 2,500 kg (approx. 70 cartons, 36kg each)
Storage Location Hong Kong Bonded Logistics Zone
Export Protocol Non-Radioactive
LAYER 01 · AMPOULE
200g Glass Ampoule

Sealed glass ampoule, 190 mm long × 40 mm diameter, 200 g net copper powder each.

LAYER 02 · PACKAGE BOX
1 kg Package Box

Five ampoules per box, 240 × 220 × 40 mm, 1 kg net per box.

LAYER 03 · EXPORT CARTON
36kg Export Carton

36 package boxes per carton, 400 × 500 × 600 mm, 36 kg net per carton.

Cu≥99.9998%
Oxygen<1.0 ppm
Fe<0.2 ppm
Pb<0.1 ppm
Ni<0.1 ppm
Zn<0.1 ppm
Ag<0.2 ppm
As<0.05 ppm
Hong Kong Bonded Physical Stock 50% T/T advance, 50% balance upon buyer physical inspection & SGS pickup in Hong Kong
Inquire about Copper
PACKAGING IN PRACTICE

Sealed, cushioned, labelled.

Each 5 kg stainless tank travels in its own foam-cut flight case. The tank, the insert and the outer case, as they leave the warehouse.

5 kg 316L stainless steel tank with valves and sight glasses
5 kg tank316L stainless steel, needle valves, quick couplers, sight glasses
Flight case with foam insert cut for two tanks
Foam-cut flight caseCushioned pockets hold two tanks upright
Closed aluminum flight cases with handling labels
Outer caseRiveted aluminum shell with orientation and caution labels
ON CAMERA

See it before you inspect it.

Phone footage from the warehouse: tanks seen from above, and the view through the sight glass. Trimmed, with the sound removed.

Tanks in storageA walk over the stock, then sight-glass views
Close look at a tankClamp, valves and the sight glass up close
PURITY & FULFILLMENT BENCHMARK

Why institutional buyers source directly from Apex

Extreme purity alkali metals and non-radioactive isotopes require sovereign export compliance, verified trace impurity assays, and zero-compromise hermetic seals.

Evaluation Criteria Open B2B Platforms (Alibaba / Marketplace Brokers) Apex Material Science (Direct Tier-1 Desk)
Actual Purity & Grade 99.0%–99.9% (2N–3N) industrial salts or oxidized copper powder (>500 ppm oxygen); unsuited for atomic/quantum use. Rb & Cs ≥99.995% (4N5/5N, <50 ppm metals) · Isotope Cu Powder ≥99.9998% (5N8, Oxygen <1 ppm, D50 4.1µm).
Inventory & Export Control Paper trading brokers with zero physical stock; frequent customs confiscation due to missing Class 4.3 DG export licenses. Cu: 2,500 kg in Hong Kong Bonded Warehouse · Rb/Cs: Direct Refinery Control + Pre-Contract Site Visit.
Packaging Engineering Standard plastic bottles or thin glass vials prone to atmospheric seal failure and violent oxidation during transit. 5kg 316L SS Swagelok Cylinders (99.999% Ar) in UN Flight Cases + 5g–100g Vacuum Flame-Sealed Borosilicate Ampoules.
Pricing & Settlement Unverified low-price listings ("$1–$10/kg") are common, often paired with 100% upfront wire requests and no independent assay verification. Formal Inquiry-Based FCO Pricing · Risk-mitigated 50% T/T advance & 50% balance upon SGS/buyer physical inspection & pickup.
GOVERNMENT HAZMAT & ICP-MS LABORATORY CERTIFICATES

Verified Scans & Regulatory Dossier (正本)

Inspect authentic Chinese refinery test reports (YS/T 1246-2018 / YS/T 1245-2018), PRC Dangerous Goods Production Licenses, and Hong Kong bonded warehouse compliance records.

LAB REPORT · 2-PAGE COA Rubidium ICP-MS Assay Standard YS/T 1246-2018 · JC-ICP-03 LAB REPORT · 2-PAGE COA Cesium ICP-MS Assay Standard YS/T 1245-2018 · Lot CS-4N5 BONDED STOCK · 2-PAGE COA Isotope Copper 5N8 GOST 859 / 5N8 · Oxygen <1 ppm ↗ PRC HAZMAT LICENSE Safety Production Dossier 2026–2029 PRC DG License (金属铷/金属铯)
INSTITUTIONAL INQUIRY DESK

Request Formal Offer & COA

Direct communication with our commercial desk. Qualified institutional buyers receive an itemized Full Corporate Offer (FCO), comprehensive COA pack, and factory inspection protocols within 24 hours.

Standard terms: 50/50 T/T · SGS inspection