Magnesium trisilicate hydrate
ChemSP — A brand of Jinan Shenghe Chemical Co., Ltd.
High-quality Magnesium trisilicate hydrate supplied by ChemSP Competitive pricing, reliable delivery, and full technical support for B2B buyers worldwide.
Specifications
| Molecular Formula | H2Mg2O9Si3 |
|---|---|
| Molecular Weight | 278.877 |
| Boiling Point | 100°C at 760 mmHg |
| Vapor Pressure | 24.5mmHg at 25°C |
Detailed Chemical Properties & Synonyms
Physical & Chemical Properties
性状 白色细粉，无臭、无味、无砂砾感。 溶解性 不溶于水和乙醇。易受无机酸分解，略有吸湿性。
Applications / Uses
主要用作制药、脱臭剂、脱色剂，也用于陶瓷、橡胶等工业
ChemSP - your B2B chemical sourcing brand. We provide consolidated logistics and multilingual technical support to ensure every shipment is stable and reliable.
Product Overview
Magnesium trisilicate hydrate appears in the ChemSP catalogue under Inorganic Chemicals, and is supplied against a written specification rather than a catalogue grade alone.
Structurally the compound is H2Mg2O9Si3, i.e. 2 hydrogen atoms, 2 magnesium atoms, 9 oxygen atoms and 3 silicon atoms locked in one stoichiometric ratio, so a mass-balance check against the COA can be run directly.
The molecular weight of 278.88 makes it a small molecule in the usual fine-chemical range, handled much like other solid or liquid intermediates of similar size.
Chemical Identity
| CAS Number | 39365-87-2 |
|---|---|
| Molecular Formula | H2Mg2O9Si3 |
| Molecular Weight | 278.88 |
| Catalog Category | Inorganic Chemicals |
Composition and Key Properties
Elementally the substance reads as an oxygenated aliphatic or aromatic skeleton (alcohol, ether, ester or acid functionality) together with a mineral (metal-bearing) salt form.
Applications and Use Cases
Magnesium trisilicate hydrate (CAS 39365-87-2, molecular formula H2Mg2O9Si3, molecular weight 278.88 g/mol) is mainly applied in chemical synthesis, fine chemical manufacturing and related industrial processes. For specification, COA and bulk prices of Magnesium trisilicate hydrate, write to our sales team.
- pH adjustment, precipitation or catalyst-support work in aqueous systems.
- Blending into formulations where the anion, not just the assay, sets performance.
- Use as a mineral source or counter-ion where the hydrated form drives the effective dose.
Specific end-uses should be checked against your own regulatory assessment before the material is qualified in a finished product.
Packaging and Handling
Supplied in standard export packaging appropriate to the physical form of the material. The exact pack size, inner liner and net weight are fixed on the order acknowledgement, since they depend on whether the lot ships as a solid, a paste or a liquid. Customers with drum, liner or pallet constraints should specify them when enquiring.
Quality and Documentation
Each shipment is accompanied by a certificate of analysis covering identity (IR or NMR as applicable), assay, and the parameters agreed in the specification. A safety data sheet in the current GHS format is issued with the first order and reissued whenever the classification changes.
Supply and Quotation
To quote accurately we need the quantity, the destination, and the specification you intend to work to. Enquiries sent with those three details usually come back priced within one business day.
Frequently Asked Questions
What is the CAS number of Magnesium trisilicate hydrate?
The CAS registry number for Magnesium trisilicate hydrate is 39365-87-2. Please quote it on any enquiry so that a quotation is matched to the correct grade.
Can you supply Magnesium trisilicate hydrate with a specification we define?
Yes. The acceptance criteria can be adjusted within what the route allows — most often assay, moisture, heavy metals or particle size. Any change is written into the specification before the lot is released.
Which documents come with the shipment?
A batch-specific COA and a GHS-format safety data sheet. Additional declarations — non-GMO, allergen, origin, or a customer-specific template — can be issued on request.
Request a Quotation
Extended Specifications
Magnesium trisilicate hydrate is supplied against a clear, batch-specific specification. When you request a quote, our team confirms the assay or purity grade, physical form, pack size and any residue limits relevant to your application. Typical parameters documented on the Certificate of Analysis include identity (CAS number), molecular formula, molecular weight, appearance, assay, loss on drying and heavy-metal limits where applicable.
Applications by Industry
Buyers source Magnesium trisilicate hydrate across food and beverage, nutraceutical and pharmaceutical, cosmetic and personal care, and selected industrial formulations. ChemSP aligns the grade and documentation set to the target application and destination market.
Regulatory & Compliance Support
ChemSP ships Magnesium trisilicate hydrate with a Certificate of Analysis for every batch and a Safety Data Sheet on request. Additional documentation such as specification sheets, third-party test reports and regulatory support letters is available to qualified buyers to streamline import, registration and quality-assurance workflows.
Storage & Handling
Store Magnesium trisilicate hydrate in a cool, dry, well-ventilated area in its original, tightly closed container, protected from moisture and direct sunlight. Follow the precautions in the Safety Data Sheet and standard chemical-handling guidance. Shelf life and re-test intervals are stated on the Certificate of Analysis.
Frequently Asked Questions
What is the minimum order quantity (MOQ)?
MOQ depends on grade and pack size. Sampling quantities typically start from 1 kg, with commercial volumes from 25 kg. Share your required volume and we will quote accordingly.
Can I request a sample and a Certificate of Analysis?
Yes. Samples and batch-specific Certificates of Analysis are available on request, and third-party testing can be arranged for qualified buyers.
What documentation supports import and registration?
Every shipment includes a Certificate of Analysis. The Safety Data Sheet, specification sheets and regulatory support letters are provided on request to support customs clearance and product registration in your market.
What are the typical lead times and payment terms?
Lead times vary with grade and volume. ChemSP quotes a firm delivery window with each offer, and standard international trading terms apply.
Molecular Profile
- Molecular formula
- H2Mg2O9Si3
- Molar mass
- 278.88 g/mol
- Heavy atoms (non-hydrogen)
- 14
- Total atoms
- 16
- Distinct elements
- 4
Elemental Composition
| Element | Atoms | Mass fraction |
|---|---|---|
| O | 9 | 51.63% |
| Si | 3 | 30.21% |
| Mg | 2 | 17.43% |
| H | 2 | 0.72% |
The table below is calculated from the molecular formula H2Mg2O9Si3. The values are theoretical and are intended as a reference for incoming inspection and for setting a purchase specification.
Contains the metallic element Mg. The material behaves as an inorganic salt: it is non-volatile, generally water-soluble, and leaves an inorganic residue on ignition.
At 278.87 g/mol the molar mass is in the small-molecule range, where volatility and dust generation are the practical handling concerns.
Identity and Registry Data
- CAS number
- 39365-87-2
Handling, Storage and Stability
Store sealed in a dry, well-ventilated area. Inorganic salts take up moisture readily and may cake or partially dissolve; keep away from strong acids.
Typical Specification Parameters
- Assay / content
- Loss on drying / moisture
- Appearance and odour
- Heavy metals (as Pb)
- Shelf life and packaging
- Residue on ignition (sulfated ash)
These are the parameters normally reported on a certificate of analysis. Limits are lot-specific and follow the specification agreed between supplier and buyer; no numeric limits are stated or implied here.
Frequently Asked Questions
What are the CAS number, molecular formula and molar mass of Magnesium trisilicate hydrate?
Magnesium trisilicate hydrate is identified by CAS 39365-87-2, molecular formula H2Mg2O9Si3 and a molar mass of 278.88 g/mol.
What is the elemental composition of Magnesium trisilicate hydrate?
Calculated from H2Mg2O9Si3, the composition by mass is: O 51.6%, Si 30.2%, Mg 17.4%, H 0.7%.
Which parameters are normally reported for Magnesium trisilicate hydrate?
A certificate of analysis normally reports Assay / content, Loss on drying / moisture, Appearance and odour, Heavy metals (as Pb), Shelf life and packaging, Residue on ignition (sulfated ash). Exact limits are agreed with the buyer and are lot-specific.
Applications
主要用作制药、脱臭剂、脱色剂，也用于陶瓷、橡胶等工业
Packaging & Shipping
- Standard: 25 kg fiber drum / 200 kg steel drum with double PE liner
- Small pack: 1 kg / 5 kg aluminum foil bag for lab & sample
- Custom: packaging size and labeling per customer requirement
- Lead time: in-stock items ship within 3-5 business days
- Documents: COA, MSDS / SDS, TDS provided with every shipment
- Global: air, sea (FCL / LCL) and express to 80+ countries
Storage & Handling
Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.
Frequently Asked Questions
Yes. A batch-specific COA and free or charged sample are available on request before bulk ordering.
Yes. We offer custom grade, particle size and purity adjustment based on your application and order volume.
MOQ depends on the product; small quantities are supported for R&D and trial runs.
Every batch is tested in-house and retains full traceability from raw material to finished goods.
Why Choose ChemSP
Request a Quote
Looking for pricing, availability or technical data for Magnesium trisilicate hydrate?
Email us at sales@chemsp.com or use the button above. Our team typically responds within 1 business day.
About ChemSP
ChemSP
We are a professional chemical supplier based in Jinan, China. Since 2013, we have been connecting manufacturers and global B2B buyers with reliable sourcing, quality-controlled products and efficient logistics.
Our business covers food & feed additives, fine chemicals, pharmaceutical intermediates, eco-materials, coatings and specialty chemicals — all non-hazardous and compliant with our licensed scope.