Magnesium Sulfate Heptahydrate CAS#10034-99-8

High-Purity Crystalline Form:White or colorless needle-like crystals with stable composition and excellent appearance quality.


Excellent Water Solubility:Easily soluble in water and in its own crystal water, ensuring fast dissolution and high bioavailability.


Stable Physical Properties:Odorless, slightly bitter taste with reliable density and consistent molecular structure.


Wide Application Potential:Suitable for pharmaceutical, agricultural, food, and industrial uses requiring high-quality magnesium sulfate.


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Product Description

Product Description of ‌Magnesium Sulfate Heptahydrate CAS#10034-99-8

Magnesium sulfate heptahydrate is white/colorless needle/columnar crystals (odorless, cooling bitter taste, MW 246.47, density 1.68). Soluble in water, slightly in ethanol/glycerol; dissolves in own crystal water at ~67.5 °C.


Product Application of Magnesium Sulfate Heptahydrate CAS#10034-99-8

Magnesium sulfate heptahydrate is used in agriculture (magnesium/sulfur fertilizer, animal feed), medicine (laxative, anti-swelling agent, magnesium supplement), industry and food processing. Industrial uses cover magnesium compound production, papermaking aids, textile dyeing auxiliaries and wastewater treatment.

Product Information

Parameters


Melting point1124°C
bulk density900kg/m3
density2.66
vapor density<0.01 (vs air)
vapor pressure<0.1 mm Hg ( 20 °C)
refractive index1.433
storage temp.Store at +5°C to +30°C.
solubilityH2O: 1 M at 20 °C, clear, colorless
formSolid
Specific Gravity1.68
colorWhite
OdorOdorless
PH5.0-8.0 (25℃, 50mg/mL in H2O)
Water SolubilitySoluble in in water and acid. Slightly soluble in alcohol and glycerol.
λmaxλ: 260 nm Amax: 0.010
λ: 280 nm Amax: 0.010
Merck145,691
Dielectric constant8.2(Ambient)
Stability:Stable. Non-flammable. May slowly deteriorate in contact with air.
InChIKeyWRUGWIBCXHJTDG-UHFFFAOYSA-L
LogP-1.031 (est)
CAS DataBase Reference10034-99-8(CAS DataBase Reference)
NIST Chemistry Referencemagnesium sulfate heptahydrate(10034-99-8)
EPA Substance Registry SystemMagnesium sulfate heptahydrate (10034-99-8)


Safety Information


Hazard CodesXi
Risk Statements36/37/38
Safety Statements24/25-36-26
WGK Germany1
RTECSOM4508000
TSCAYes
HS Code28332100
Toxicityman,TDLo,oral,183mg/kg/4H-I (183mg/kg),GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA",Journal of Toxicology, Clinical Toxicology. Vol. 20, Pg. 107, 1983.


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FAQ

Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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