Technical Data Sheet

Magnesium Chloride Hexahydrate FCC, USP GRADE

USP Grade · 46.63%

Alliance Code: magnesium-chloride-hexahydrate-fcc-usp-grade
確認日: 2026-06-17
Revision: 1.4

CAS番号: 7791-18-6
構造: 構造・PubChem
グレード: USP Grade · 46.63%

Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer.

Identity & Composition

製品名: Magnesium Chloride Hexahydrate FCC, USP GRADE
Alliance Code: magnesium-chloride-hexahydrate-fcc-usp-grade
グレード: USP Grade
濃度: 46.63%
CAS番号: 7791-18-6PubChem
化学式: —PubChem
分子量: 203.30PubChem
製品種別: Pure substance

Specifications

Test	Specification	Typical	Method	Source
Assay (MgCl2·6H2O), USP	98.0 - 101.0 percent	99.4 percent	Complexometric titration with 0.05 M edetate disodium VS, eriochrome black TS indicator, to a blue endpoint (1 mL = 10.17 mg MgCl2·6H2O)	Interpreted
Ammonium (NH₄)	≤0.005 %	0.00047 %	—	Interpreted
Barium	No turbidity is produced within 2 hours	Passes test	Dissolve 1 g in 10 mL water, add 1 mL of 2 N sulfuric acid; observe 2 hours	Interpreted
Calcium (Ca)	To pass test	Passes test	—	Interpreted
Description	Colorless flakes or crystals; hygroscopic; very soluble in water, freely soluble in alcohol	Passes test	Visual	Interpreted
Heavy metals	20 µg/g max	NMT 5	—	Interpreted
Identification (FCC)	A 1:10 aqueous solution gives positive tests for Magnesium and for Chloride	Passes test	Positive tests for Magnesium and for Chloride on a 1:10 aqueous solution	Interpreted
Insoluble matter	Max. 0.005%	0.0007%	Gravimetric.	Interpreted
Lead (Pb)	≤4 mg/kg	0.09 mg/kg	—	Interpreted
Potassium	No turbidity is produced within 5 minutes	Passes test	Dissolve 5 g in 5 mL water, add 0.2 mL sodium bitartrate TS; observe 5 minutes	Interpreted
Sulfate (SO₄)	0.03 % max	0.0007 %	—	Interpreted
Iron (Fe)	Max. 0.001% (10 mg/kg)	0.000046 %	Colorimetric, USP <241> / ICP-OES	Interpreted
Arsenic (as As)	Max. 3 mg/kg	0.029 mg/kg	USP <211> / FCC arsenic limit test (or ICP-MS)	Interpreted

Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.

物理的及び化学的性質

One or more physical-property values are temporarily suppressed pending verification against vendor COA data. For complete properties refer to the Safety Data Sheet (SDS) or contact sales@alliancechemical.com.

Property	値	Source
外観	White crystalline hygroscopic powder	Adjudicated
形状	Solid	Published reference
沸点	1412	Published reference
融点	117°C (242.6°F)	Adjudicated
引火点	N/A	Published reference
Solubility (water)	High water solubility, moderate alcohol solubility	Published reference

Materials of ConstructionService envelope ≈ 46.63%

Material	Rating	Max T (°C)	Notes	Source
Buna-N (NBR) elastomer	Good	60	Acceptable	Cole-Parmer Chemical Compatibility
EPDM elastomer	Excellent	100	Standard for brine gaskets.	Parker O-ring Chemical Compatibility
Viton (FKM) elastomer	Excellent	100	Preferred elastomer	Cole-Parmer Chemical Compatibility
Borosilicate Glass glass ceramic	Excellent	100	Universally inert to salt solutions.	Cole-Parmer Chemical Compatibility
Concrete (sealed) glass ceramic	Good	—	Acceptable with epoxy coating	Cole-Parmer Chemical Compatibility
304 stainless steel metal	Fair	25	Pitting in chloride-rich service	Cole-Parmer Chemical Compatibility
316L Stainless Steel metal	Good	60	Watch for chloride pitting above 60 °C in chloride salts.	NACE Chloride Pitting Guidelines
Aluminium metal	Poor	—	Pitting; not recommended for brine	Cole-Parmer Chemical Compatibility
Carbon steel metal	Poor	—	Rapid rust in brine	Cole-Parmer Chemical Compatibility
FRP thermoplastic	Excellent	60	Common bulk-storage	Cole-Parmer Chemical Compatibility
HDPE thermoplastic	Excellent	60	Universal salt brine compatibility.	Cole-Parmer Chemical Compatibility
PP thermoplastic	Excellent	80	Acceptable for hot brine	Cole-Parmer Chemical Compatibility
PVC thermoplastic	Excellent	60	Standard for brine piping.	Cole-Parmer Chemical Compatibility

Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.

Materials Selection Tool

Concentration (% w/w): 47%

Temperature (°C): 20

Showing 13 of 13 material ratings within the selected envelope.

Material	Rating	Max T (°C)	Notes
Buna-N (NBR) elastomer	Good	60	Acceptable
EPDM elastomer	Excellent	100	Standard for brine gaskets.
Viton (FKM) elastomer	Excellent	100	Preferred elastomer
Borosilicate Glass glass ceramic	Excellent	100	Universally inert to salt solutions.
Concrete (sealed) glass ceramic	Good	—	Acceptable with epoxy coating
304 stainless steel metal	Fair	25	Pitting in chloride-rich service
316L Stainless Steel metal	Good	60	Watch for chloride pitting above 60 °C in chloride salts.
Aluminium metal	Poor	—	Pitting; not recommended for brine
Carbon steel metal	Poor	—	Rapid rust in brine
FRP thermoplastic	Excellent	60	Common bulk-storage
HDPE thermoplastic	Excellent	60	Universal salt brine compatibility.
PP thermoplastic	Excellent	80	Acceptable for hot brine
PVC thermoplastic	Excellent	60	Standard for brine piping.

Regulatory & Transport

DOT / 49 CFR

国連番号: 非該当Adjudicated
危険有害性クラス: 非該当Adjudicated
容器等級: 非該当Adjudicated
正式輸送品名: 非該当Adjudicated

GHS / OSHA HCS 2024

注意喚起語: 非該当Adjudicated
H-Codes (Hazard Statements): 該当しないAdjudicated
P-Codes (Precautionary Statements): 該当しないAdjudicated

許容濃度

OSHA PEL (29 CFR 1910.1000): —no canonical
ACGIH TLV: —no canonical
NIOSH REL: —no canonical
NIOSH IDLH: —no canonical

輸送情報は発行時点の49 CFR 172.101の照会結果を反映しています。データ出典：REL/IDLHはNIOSH Pocket Guide、PELはOSHA Zテーブル。出荷に関わる重要な判断の前に、必ず最新の規制本文で確認してください。

Supplier Qualification Packet

One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Magnesium Chloride Hexahydrate FCC, USP GRADE. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Applications

Food additive functioning as a color-retention agent and firming agent (FCC Food Grade specification)mubychem.com
Coagulant used in the preparation of cheese and tofu (sold as nigari in Japan, lushui in China)mubychem.com
Ingredient in baby formula milkmubychem.com
Use in hemodialysis, where the USP material is labeled as intended for that use (and must then meet the 1 ppm aluminum limit)trungtamthuoc.com
USP Grade material can be used in food, drug, or medical applicationslaballey.com
Reagent, personal care, and gardening useslaballey.com
May be intended for use in hemodialysis when labeled accordingly.trungtamthuoc.com

Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.

Storage & Handling

Recommended Storage: 潮解性および吸湿性：容器を密閉し、乾燥した涼しい換気のよい場所で保管し、湿気から保護すること。水に溶解すると発熱する。水に塩を加え、塩に水を加えないこと。Adjudicated
Handling Precautions: Standard chemical PPE — dust mask and goggles for handling of fine grades. Avoid generating airborne dust.Class-level guidance — not product-specific; the SDS controls.
Incompatibilities: 強酸化剤； silver nitrate； 2-furan percarboxylic acidと爆発的に反応する。溶液は金属を腐食する。Adjudicated
Shelf Life: Consult Technical Services for product-specific shelf life

For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.

Packaging & Logistics

Shipping Description (US DOT)

Not regulated for transport.

Confirm against shipping documents and carrier requirements before tender.

NMFC Class

Revision History

Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).

Version	Date	Change	Trigger
1.4	2026-10-13	Canonical data updated: 4 fields changed via the provenance/adjudication pipeline. storage_precautions· canonical change (coa.data_provenance / adjudication) incompatible_materials· canonical change (coa.data_provenance / adjudication) conditions_to_avoid· canonical change (coa.data_provenance / adjudication) hazardous_decomposition_products· canonical change (coa.data_provenance / adjudication)	canonical_change
1.3	2026-10-02	Canonical data updated: 2 fields changed via the provenance/adjudication pipeline. hazard_h_codes· canonical change (coa.data_provenance / adjudication) hazard_p_codes· canonical change (coa.data_provenance / adjudication)	canonical_change
1.2	2026-09-30	Canonical data updated: 2 fields changed via the provenance/adjudication pipeline. meltingPoint· canonical change (coa.data_provenance / adjudication) appearance· canonical change (coa.data_provenance / adjudication)	canonical_change
1.1	2026-06-17	Canonical data re-verified: 4 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable). countryOfOrigin· canonical adjudication / reground (coa.data_provenance) dotSubsidiaryHazardClass· canonical adjudication / reground (coa.data_provenance) hsCode· canonical adjudication / reground (coa.data_provenance) pH· canonical adjudication / reground (coa.data_provenance)	canonical_change
1.0	2026-05-20	Initial URL-first TDS published from canonical chemistry registry.	initial

This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.