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Hydroxides and bases

Strontium hydroxide

Also known as Strontium dihydroxide, Strontium hydroxide (Sr(OH)2), Strontium hydroxide (Sr(OH)2), octahydrate

CAS 18480-07-4Formula H2O2SrMolar mass 121.63 g/molEC 242-367-1
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 13 suppliers listed
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Strontium hydroxide chemical structure, H2O2Sr, CAS 18480-07-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
18480-07-4
Formula
H2O2Sr
Molar mass
121.63 g/mol
EC number
242-367-1
HS code
281640
Category
Hydroxides and bases

What is Strontium hydroxide?

Plain description, key identifiers and synonyms

Strontium dihydroxide is a strontium hydroxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
strontium dihydroxide
CAS number
18480-07-4
EC number
242-367-1
Molecular formula
H2O2Sr
UNII
EPK818UET5
INCI name
STRONTIUM HYDROXIDE
InChIKey
UUCCCPNEFXQJEL-UHFFFAOYSA-L
InChI
InChI=1S/2H2O.Sr/h2*1H2;/q;;+2/p-2
SMILES (canonical and isomeric)
[OH-].[OH-].[Sr+2]

Synonyms

  • Strontium dihydroxide
  • Strontium hydroxide (Sr(OH)2)
  • Strontium hydroxide (Sr(OH)2), octahydrate
  • Strontium hydroxide anhydrous
  • Strontium dihydroxide octahydrate
  • strontium, dihydroxide
  • Strontiumhydroxide
  • strontium(II) hydroxide
  • H2O2Sr
  • strontium(2+) hydroxide

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
121.63 g/molcalc.
Exact mass
121.9111 Dacalc.
LogP (octanol/water)
-0.73calc.
Topological polar surface area
60 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
Precautionary statements (17)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Strontium hydroxide suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 13 suppliers
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Where suppliers are based

13 suppliers in 3 countries

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Strontium hydroxide price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name STRONTIUM HYDROXIDE(buffering)

Functional uses

  • pH regulating agent

Cosmetic functions

  • Buffering

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex III, restricted in cosmetics
    Name: STRONTIUM HYDROXIDE, Ref no: 63, Annex ref: III/63

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Strontium hydroxide is traded under.

HS 2816.40Indicative HS code

Oxides, hydroxides and peroxides, of strontium or barium

World exports in 2024
$33.7M
+8.5% vs 2023, imports $36.5M
2019 to 2024
Top exporters
  1. China77.5%
  2. Germany9.4%
  3. United States4.0%
Top importers
  1. South Korea25.4%
  2. Japan20.3%
  3. United States14.3%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Strontium hydroxide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Strontium hydroxide, based on the data on this page

What is Strontium hydroxide?

Strontium dihydroxide is a strontium hydroxide.

What is the CAS number of Strontium hydroxide?

The CAS registry number of Strontium hydroxide is 18480-07-4.

What is the molecular formula and weight of Strontium hydroxide?

The molecular formula of Strontium hydroxide is H2O2Sr and its molar mass is 121.63 g/mol.

What is Strontium hydroxide used for?

Use classes: Cosmetics.

Is Strontium hydroxide hazardous?

Strontium hydroxide carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes severe skin burns and eye damage, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Strontium hydroxide?

Strontium hydroxide is usually classified under HS code 281640 (Oxides, hydroxides and peroxides, of strontium or barium). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Strontium hydroxide?

CompoundList lists 13 suppliers of Strontium hydroxide in China, United States and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Strontium hydroxide in India?

1 supplier in India list Strontium hydroxide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Strontium hydroxide?

Suppliers quote Strontium hydroxide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Strontium hydroxide

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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