Skip to content
Molekula

Molekula

Magnesium nitrate hexahydrate

SKU 25818207 CAS 13446-18-9 Mg(NO3)2 · 6H2O MW 256.41 In stock (5+ packs) — same-day dispatch Bulk quantities on request

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need

Magnesium nitrate hexahydrate is a water-soluble inorganic compound used in fertilizers, laboratory reagents, and as a source of magnesium in chemical synthesis. It is also employed in pyrotechnic formulations, in concentrating nitric acid, as a catalyst in petrochemical production, and as a sensitizer for lithographic printing plates. It appears as colorless to pale green crystals. CAS: 13446-18-9, Molecular formula: Mg(NO3)2 · 6H2O, Molecular weight: 256.41 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Magnesium nitrate hexahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Example image for illustration only. Other packaging and pack sizes are available.

Often bought together

Pricing & pack sizes

Pack sizes & pricing

These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.

Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.

  • 500 g — $79.80 per pack

Need a different quantity or pack?

Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.

Quantity
Unit
Needed by
Full name
Email
Company
Phone (optional)
Notes

Expect a response within hours

Prices exclude VAT/sales tax and shipping.

Specifications

Property Value
Appearance White crystalline powder
Cadmium (Cd) ≤ 0.0001%
Iron (Fe) ≤ 0.002%
Arsenium ≤ 0.0001%
Mercury (Hg) ≤0.00001%
Calcium (Ca) ≤ 0.8%
Nickel (Ni) ≤0.0015%
Zinc (Zn) ≤ 0.0005%
Chromium (Cr) ≤ 0.0001%
Sulphates (SO4)(2-) ≤ 0.1%
Chlorine (Cl) ≤ 0.1%
Assay as Mg (NO3) 2.6H2O ≥ 98%
Assay Mg (NO3)2 ≥ 57.5%

Storage & handling

Property Value
Storage Temperature Ambient
Transport Class 5.1
Packing Group III
Acidity Neutral

Literature values

Published physical properties of the substance, not batch specifications.

Property Value
Melting Point 89 °C

Source: PubChem CID 202877 (PAC Chemical Database)

Identification

Property Value
SKU 25818207
CAS Number 13446-18-9
IUPAC Name magnesium;dinitrate;hexahydrate
Molecular Formula Mg(NO3)2 · 6H2O
Molecular Weight 256.41
Exact Mass 256.0241
SMILES [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Mg+2]
InChIKey MFUVDXOKPBAHMC-UHFFFAOYSA-N
InChI InChI=1S/Mg.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;
PubChem CID 202877
UN Number UN1474
REACH Code Y110
HTS Code 2834295100
Tariff Code 2834298000

Safety & GHS

Warning
  • GHS pictogram — Oxidizing Oxidizing GHS03
  • GHS pictogram — Health Hazard Health Hazard GHS07
  • GHS pictogram — Serious Health Hazard Serious Health Hazard GHS08

Hazard statements

  • H272 May intensify fire; oxidizer
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation
  • H351 Suspected of causing cancer

Precautionary statements

  • P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P302+352 IF ON SKIN: Wash with soap and water
  • P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Synonyms

  • Dusicnan horecnaty
  • H12MgN2O12
  • Magnesium (II) nitrate, hexahydrate
  • Magnesium dinitrate hexahydrate
  • Magnesium Matrix Modifier
  • Magnesium nitrate hexahydrate ACS grade
  • Magnesium nitrate--water (1/2/6)
  • MAGNESIUM(II) NITRATE (1:2), HEXAHYDRATE
  • Mg(NO3)2.6H2O
  • Nitric acid, magnesium salt, hexahydrate

Frequently asked questions

What is magnesium nitrate hexahydrate used for?

It is commonly used in fertilizers, as a reagent in chemical synthesis, and in the production of catalysts and flame retardants.

What is the chemical formula and molecular weight?

The formula is Mg(NO3)2 · 6H2O with a molecular weight of 256.41 g/mol.

How should magnesium nitrate hexahydrate be stored?

It should be stored at ambient temperature, in a dry place, away from incompatible materials.

What grade is available?

Available in reagent grade; other grades may be available upon request.

Can Molekula supply it in bulk?

Yes, Molekula can supply magnesium nitrate hexahydrate in bulk quantities—please contact sales for details.

What documentation comes with the order?

Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

Talk to a chemist
Documents Pricing
Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket