Public-data summary · not an SDS ｜ updated 2026-10-29 ｜ missing fields are marked "Not available"
MgO
oxomagnesium
CAS 1309-48-4 · MW 40.305 · PubChem CID 14792
CAS 1309-48-4Formula MgOMW 40.305
Signal word
Warning
UN number
Not regulated as dangerous goods
Class / packing
— / —
Data status
Public summary
Hazard identification
Source: PubChem GHS · ECHA C&LWarning
GHS07
H319Causes serious eye irritation · Warning Serious eye damage/eye irritationH335May cause respiratory irritation · Warning Specific target organ toxicity, single exposure; Respiratory tract irritationP codes: P261 P264+P265 P271 P280 P304+P340 P305+P351+P338 P319 P337+P317 P403+P233 P405 P501
Physical and chemical properties
Source: PubChem experimental properties- Boiling point
- 3600.0 °C at 760 mmHg
- Melting point
- 2800.0 °C
- Density
- 3.58
- Flash point
- Not available
- Solubility
- 0.009 % at 30.0 °C
- Vapor pressure
- 0 mmHg (approx)
Values depend on test conditions; confirm units and conditions before using them in an SDS.
Transport information
Source: public transport information / supplier SDSUN
UN numberNot regulated as dangerous goods
CLASS
Transport classNot available
PG
Packing groupNot available
Transport classification may differ by mode and packaging; confirm before shipping.
Export compliance matrix
English summary · verified dates by market| Market | Key legislation | SDS and key obligation | Verified |
|---|---|---|---|
| European Union | REACH (EC 1907/2006) and CLP (EC 1272/2008) | 16-section SDS per CLP Annex I/II, in the language of the destination member state Assess REACH registration or an only representative (OR) obligation when tonnage is at least 1 t/a. | Confirm 2026-09-18 |
| United States | OSHA HazCom 2012 (29 CFR 1910.1200) | 16-section SDS with Sections 1–16 in fixed order, in English Some states, such as California, have additional requirements; confirm separately. | Confirm 2026-09-20 |
| Japan | CSCL and the Industrial Safety and Health Act | Japanese SDS and Japanese label; classification per JIS Z 7253 New chemical substances require CSCL notification before import or manufacture. | Confirm 2026-10-08 |
| South Korea | K-REACH and the Chemicals Control Act (CCA) | Korean SDS, 16 sections; submitted through the KOSHA e-SDS system Existing chemicals at or above 1 t/a require registration; priority substances have stricter duties. | Confirm 2026-10-11 |
| Singapore | EPMA and WSH regulations; SS 586 Part 1–3 | English SDS per SS 586 Part 3; workplace labels per SS 586 Part 2 Import, transport, storage and use of controlled hazardous substances require an NEA licence. | Confirm 2026-11-02 |
| Malaysia | CLASS Regulations 2013; EQA 1974; OSHA 1994 | English or Malay SDS per CLASS 2013 (GHS Rev. 3) Workplaces need a Chemical Register and CHRA; the DOE separately controls scheduled substances. | Confirm 2026-11-02 |
| Thailand | Hazardous Substance Act B.E. 2535; GHS Notification B.E. 2555; HSSS-2024 | Thai SDS and Thai label, per GHS Hazardous substances are managed in three classes; import, export and production may require registration or a licence. | Confirm 2026-11-02 |
| Indonesia | PP 74/2001; Permen LHK 36/2017; GHS Rev. 4 | Indonesian SDS and Indonesian label, per GHS B3 substances require registration or notification for import/use; some substances require a licence. | Confirm 2026-11-02 |
| Vietnam | Law on Chemicals 69/2025/QH15 (effective 2026-01-01) | Vietnamese SDS (Phiếu an toàn hóa chất) and Vietnamese label New chemical admission, restricted/prohibited lists and notification requirements apply. | Confirm 2026-11-02 |
| Philippines | RA 6969; Priority Chemicals List (DAO 2007-23); DOLE DO 136-14 | English SDS per GHS; workplace requirements apply PCL substances require a PCL compliance certificate for import or use. | Confirm 2026-11-02 |
| Brunei | WSH (General Provisions) Regulations 2014; SHENA GHS Rev. 7 guidance (2026-09-30) | English SDS; workplace labels per GHS Rev. 7 Workplace hazardous substances require SDS, risk assessment and training. | Confirm 2026-11-02 |
| Cambodia | Ministry of Environment chemical management; Sub-decree 180 ANKr/BK (2009) introduces GHS | Khmer or English SDS, subject to competent-authority and importer requirements Under monitoring: confirm language, registration and import requirements with MoE or a local agent before filing. | Confirm 2026-11-02 |
| Laos | MONRE and MOIC chemical management | Lao or English SDS, subject to competent-authority and importer requirements Under monitoring: confirm with MONRE/MOIC or a local agent before filing. | Confirm 2026-11-02 |
| Myanmar | MONREC chemical management | Burmese or English SDS, subject to competent-authority and importer requirements Under monitoring: confirm with MONREC or a local agent before filing. | Confirm 2026-11-02 |
| China baseline | GB/T 16483 and the GB 30000 series | Chinese SDS, 16 sections; local baseline Local baseline only; not an export destination claim. | Confirm 2026-09-30 |
This matrix describes what the destination requires, not a legal opinion. Confirm the current official text.
Sources and disclaimer
Updated 2026-10-29· PubChem: identity and CAS/CID source ↗ (fetched 2026-10-29)
· PubChem: experimental properties source ↗ (fetched 2026-10-29)
· PubChem GHS / ECHA C&L source ↗ (fetched 2026-10-29)
Disclaimer: This page organizes public data for orientation. It is not an SDS, not a legal opinion and not a substitute for the manufacturer's SDS or an accredited laboratory report. Verify the current official requirements before filing or shipping.