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01 / SAFETY DATA SHEET

Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD) 67-5000 SDS

Collected by RESDS. Original publisher PDF retained. Original manufacturer safety data sheet for Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD). Product number: 67-5000. Original revision: 18.07.2021. Published under the file-level authorization confirmed by the user for the frozen 1,125-file manifest.

02 / ORIGINAL PDF

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03 / RESDS DATA ANALYSIS

Normalized SDS data & document analysis

RESDS derives the results below from this document’s extracted text and the site’s same-material index. Detected codes are not reclassified. “Not detected” does not mean “not present”; confirm the original PDF for safety-critical use.

SDS sections14/16
Coverage88%
Hazard codes0
Precautionary codes6
UN numbers0
Same-material docs1

GHS & transport evidence

Page links show the first occurrence found in extracted text.

Precautionary statements
P262 p.1P280 p.1P305+P351+P338 p.1P304+P340 p.1P403+P233 p.1P501 p.1
CAS numbers
15522-73-3 p.1
Signal words
None detected in extracted text

SDS 16-section coverage

14 section headings detected; 2 not detected by the parser.

1. Identification · detected2. Hazard identification · detected3. Composition / ingredients · detected4. First-aid measures · detected5. Fire-fighting measures · detected6. Accidental release measures · detected7. Handling and storage · not detected8. Exposure controls / PPE · detected9. Physical and chemical properties · not detected10. Stability and reactivity · detected11. Toxicological information · detected12. Ecological information · detected13. Disposal considerations · detected14. Transport information · detected15. Regulatory information · detected16. Other information · detected

Normalized physical-property units

Calculated conversions from values detected in this SDS; not independent laboratory measurements.

PropertySDS valueSI conversionUS conversion
Melting point-181 °C92.15 K-293.8 °F
Boiling point290 °C563.15 K554.0 °F
SDS publisher documentEXTRACTED RESDS parserCALCULATED deterministic conversion / coverageDERIVED same-material index comparison
04 / SPECIFICATIONS

Material & document specifications

Material
Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)
Product / grade
67-5000
Publisher
Strem Chemicals, Inc.
Region
United Kingdom
File name
sd67-5000_GB.pdf
Document type
SDS
CAS reference(s)
15522-73-3
Language
English
Original revision
18.07.2021
Pages
6
File size
136 KB
Downloads
3
Date added
2026-09-15
HoOrganic / coordination complexComposition not fully established
Why this document matches

Composition is not fully established. An unlisted element is not proof of absence.

Ho · Composition · Page 2
15522-73-3 Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III),
05 / DOCUMENT TEXT

Full document text

6 pages · Original document language

Text extracted from the original PDF. Page order and original wording are preserved; tables and symbols may differ from the PDF layout. Check the original PDF for safety-critical details.

Page 1

Page 1/6 Safety data sheet according to 1907/2006/EC, Article 31

Printing date 18.07.2021 Revision: 18.07.2021

SECTION 1: Identification of the substance/mixture and of the company/undertaking

· 1.1 Product identifier

· Trade name: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD) ₃] · Item number: 67-5000 · CAS Number: 15522-73-3 · 1.2 Relevant identified uses of the substance or mixture and uses advised against No further relevant information available.

· 1.3 Details of the supplier of the safety data sheet · Manufacturer/Supplier: Strem Chemicals, Inc. 7 Mulliken Way NEWBURYPORT, MA 01950 USA info@strem.com

· Further information obtainable from: Technical Department · 1.4 Emergency telephone number: EMERGENCY: CHEMTREC: + 1 (800) 424-9300 During normal opening times: +1 (978) 499-1600

SECTION 2: Hazards identification

· 2.1 Classification of the substance or mixture · Classification according to Regulation (EC) No 1272/2008 The substance is not classified according to the CLP regulation.

· 2.2 Label elements · Labelling according to Regulation (EC) No 1272/2008 Void · Hazard pictograms Void · Signal word Void · Hazard statements Void · Precautionary statements P262 Do not get in eyes, on skin, or on clothing. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P501 Dispose of contents/container in accordance with local/regional/national/international regulations. · 2.3 Other hazards · Results of PBT and vPvB assessment · PBT: Not applicable. · vPvB: Not applicable. GB (Contd. on page 2)

44.1.1

Page 2

Page 2/6 Safety data sheet according to 1907/2006/EC, Article 31

Printing date 18.07.2021 Revision: 18.07.2021

Trade name: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)₃]

(Contd. of page 1)

SECTION 3: Composition/information on ingredients

· 3.1 Chemical characterisation: Substances · CAS No. Description 15522-73-3 Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)3]

SECTION 4: First aid measures

· 4.1 Description of first aid measures · General information: No special measures required. · After inhalation: Supply fresh air; consult doctor in case of complaints. · After skin contact: Immediately rinse with water. · After eye contact: Rinse opened eye for several minutes under running water. Then consult a doctor. · After swallowing: If symptoms persist consult doctor. · 4.2 Most important symptoms and effects, both acute and delayed No further relevant information available. · 4.3 Indication of any immediate medical attention and special treatment needed No further relevant information available.

SECTION 5: Firefighting measures

· 5.1 Extinguishing media · Suitable extinguishing agents: Use fire extinguishing methods suitable to surrounding conditions. · 5.2 Special hazards arising from the substance or mixture No further relevant information available. · 5.3 Advice for firefighters · Protective equipment: No special measures required.

SECTION 6: Accidental release measures

· 6.1 Personal precautions, protective equipment and emergency procedures Not required. · 6.2 Environmental precautions: No special measures required. · 6.3 Methods and material for containment and cleaning up: Dispose contaminated material as waste according to item 13. · 6.4 Reference to other sections See Section 7 for information on safe handling. See Section 8 for information on personal protection equipment. See Section 13 for disposal information.

SECTION 7: Handling and storage

· 7.1 Precautions for safe handling No special measures required. · Information about fire - and explosion protection: No special measures required.

· 7.2 Conditions for safe storage, including any incompatibilities · Storage: · Requirements to be met by storerooms and receptacles: No special requirements. · Information about storage in one common storage facility: Not required. · Further information about storage conditions: None. (Contd. on page 3) GB

44.1.1

Page 3

Page 3/6 Safety data sheet according to 1907/2006/EC, Article 31

Printing date 18.07.2021 Revision: 18.07.2021

Trade name: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)₃]

(Contd. of page 2) · 7.3 Specific end use(s) No further relevant information available.

SECTION 8: Exposure controls/personal protection

· Additional information about design of technical facilities: No further data; see item 7.

· 8.1 Control parameters · Ingredients with limit values that require monitoring at the workplace: Not required. · Additional information: The lists valid during the making were used as basis.

· 8.2 Exposure controls · Personal protective equipment: · General protective and hygienic measures: The usual precautionary measures are to be adhered to when handling chemicals. · Respiratory protection: Not required. · Protection of hands:

Protective gloves _S

The glove material has to be impermeable and resistant to the product/ the substance/ the preparation. Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the chemical mixture. Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation · Material of gloves The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer. · Penetration time of glove material The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed. · Eye protection: Safety glasses

· 9.1 Information on basic physical and chemical properties · General Information · Appearance: Form: Crystalline Colour: Whitish · Odour: Odourless · Odour threshold: Not determined.

· pH-value: Not applicable.

· Change in condition Melting point/freezing point: 179-181 °C Initial boiling point and boiling range: 290 °C

· Flash point: Not applicable.

· Flammability (solid, gas): Product is not flammable.

· Ignition temperature:

Decomposition temperature: Not determined.

· Auto-ignition temperature: Not determined.

· Explosive properties: Product does not present an explosion hazard.

(Contd. on page 4) GB

44.1.1

Page 4

Page 4/6 Safety data sheet according to 1907/2006/EC, Article 31

Printing date 18.07.2021 Revision: 18.07.2021

Trade name: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)₃]

(Contd. of page 3)

· Explosion limits: Lower: Not determined. Upper: Not determined.

· Vapour pressure: Not applicable.

· Density: Not determined. · Relative density Not determined. · Vapour density Not applicable. · Evaporation rate Not applicable.

· Solubility in / Miscibility with water: Insoluble.

· Partition coefficient: n-octanol/water: Not determined.

· Viscosity: Dynamic: Not applicable. Kinematic: Not applicable.

· Solvent content: Organic solvents: 0.0 % VOC (EC) 0.00 %

Solids content: 100.0 % · 9.2 Other information No further relevant information available.

SECTION 10: Stability and reactivity

· 10.1 Reactivity No further relevant information available. · 10.2 Chemical stability · Thermal decomposition / conditions to be avoided: No decomposition if used according to specifications. · 10.3 Possibility of hazardous reactions No dangerous reactions known. · 10.4 Conditions to avoid No further relevant information available. · 10.5 Incompatible materials: No further relevant information available. · 10.6 Hazardous decomposition products: No dangerous decomposition products known.

SECTION 11: Toxicological information

· 11.1 Information on toxicological effects · Acute toxicity Based on available data, the classification criteria are not met. · Primary irritant effect: · Skin corrosion/irritation Based on available data, the classification criteria are not met. · Serious eye damage/irritation Based on available data, the classification criteria are not met. · Respiratory or skin sensitisation Based on available data, the classification criteria are not met. · CMR effects (carcinogenity, mutagenicity and toxicity for reproduction) · Germ cell mutagenicity Based on available data, the classification criteria are not met. · Carcinogenicity Based on available data, the classification criteria are not met. · Reproductive toxicity Based on available data, the classification criteria are not met. · STOT-single exposure Based on available data, the classification criteria are not met. · STOT-repeated exposure Based on available data, the classification criteria are not met. · Aspiration hazard Based on available data, the classification criteria are not met. GB (Contd. on page 5)

44.1.1

Page 5

Page 5/6 Safety data sheet according to 1907/2006/EC, Article 31

Printing date 18.07.2021 Revision: 18.07.2021

Trade name: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)₃]

(Contd. of page 4)

SECTION 12: Ecological information

· 12.1 Toxicity · Aquatic toxicity: No further relevant information available. · 12.2 Persistence and degradability No further relevant information available. · 12.3 Bioaccumulative potential No further relevant information available. · 12.4 Mobility in soil No further relevant information available. · Additional ecological information: · General notes: Not known to be hazardous to water. · 12.5 Results of PBT and vPvB assessment · PBT: Not applicable. · vPvB: Not applicable. · 12.6 Other adverse effects No further relevant information available.

SECTION 13: Disposal considerations

· 13.1 Waste treatment methods · Recommendation Disposal must be made according to official regulations.

· Uncleaned packaging: · Recommendation: Disposal must be made according to official regulations.

SECTION 14: Transport information

· 14.1 UN-Number · ADR, ADN, IMDG, IATA not regulated

· 14.2 UN proper shipping name · ADR, ADN, IMDG, IATA not regulated

· 14.3 Transport hazard class(es)

· ADR, ADN, IMDG, IATA · Class not regulated

· 14.4 Packing group · ADR, IMDG, IATA not regulated

· 14.5 Environmental hazards: · Marine pollutant: No

· 14.6 Special precautions for user Not applicable.

· 14.7 Transport in bulk according to Annex II of Marpol and the IBC Code Not applicable.

· UN "Model Regulation": not regulated

SECTION 15: Regulatory information

· 15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture

· Directive 2012/18/EU · Named dangerous substances - ANNEX I Substance is not listed. (Contd. on page 6) GB

44.1.1

Page 6

Page 6/6 Safety data sheet according to 1907/2006/EC, Article 31

Printing date 18.07.2021 Revision: 18.07.2021

Trade name: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD)₃]

(Contd. of page 5) · 15.2 Chemical safety assessment: A Chemical Safety Assessment has not been carried out.

SECTION 16: Other information

This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.

· Department issuing SDS: Technical Department. · Contact: Technical Director · Abbreviations and acronyms: ADR: Accord européen sur le transport des marchandises dangereuses par Route (European Agreement concerning the International Carriage of Dangerous Goods by Road) IMDG: International Maritime Code for Dangerous Goods IATA: International Air Transport Association GHS: Globally Harmonised System of Classification and Labelling of Chemicals CAS: Chemical Abstracts Service (division of the American Chemical Society) VOC: Volatile Organic Compounds (USA, EU) PBT: Persistent, Bioaccumulative and Toxic vPvB: very Persistent and very Bioaccumulative GB

44.1.1

06 / OTHER PUBLISHERS

Same material — SDS from other publishers

0 documents in this material index. Product grades, hydration states and formulations must be checked in each original PDF.

No other publisher PDF is currently indexed for this material.

07 / SOURCE COMPANY

Original publisher & company information

Manufacturer / supplier listed in SDS

Strem Chemicals, Inc.

Official website checked
Brand / organization
Strem Chemicals
Country / office
United States
SDS contact email
info@strem.com
Business phone in SDS
Not stated
Product / reference
67-5000
Official website contactContact page / website Source · Checked 2026-09-14

The official Strem product site identifies the current offering as Ascensus Specialties' Strem Catalog; Ascensus' official acquisition announcement confirms Strem Chemicals, Inc. joined Ascensus in 2021. No standalone public general email was recorded.

View extracted supplier details
Details of the supplier of the safety data sheet
                                · Manufacturer/Supplier:
                  Strem Chemicals, Inc.
                 7 Mulliken Way
              NEWBURYPORT, MA 01950
              USA
                  info@strem.com

                                · Further information obtainable from: Technical Department

About Strem Chemicals, Inc.

The official Strem product site identifies the current offering as Ascensus Specialties' Strem Catalog; Ascensus' official acquisition announcement confirms Strem Chemicals, Inc. joined Ascensus in 2021. No standalone public general email was recorded.

Company website & profile
Document source & record history

Original record: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)holmium(III), 99% (99.9%-Ho) (REO) [Ho(TMHD) SDS – Strem Chemicals, Inc.

Added: 2026-09-15T02:30:39.000Z · Record updated: 2026-09-15T02:30:39.372Z

Original file SHA-256: 8e655ede2feadbdf6f899f9b7a1c6b589f7bb4704fb0a5c64d985371b32b40c3

Original source PDF

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08 / OFFICIAL REFERENCES

Official chemical reference sources

Source guide ↗

CAS references recorded in this SDS. Properties below describe individual substances, not necessarily the complete product. Check the original SDS for mixtures, grades and hydrate states.

CAS 15522-73-3Chemical reference & source links
Chemical name (IUPAC)
View at PubChem ↗
Molecular formula
View at PubChem ↗
Molecular weight
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Selected synonyms
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GHS provides classification criteria. The applicable hazard classification must be checked for the specific product and jurisdiction.

09 / MATERIAL SUPPLIERS

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10 / GLOBAL SEARCH

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11 / WIKIPEDIA

Material background on Wikipedia

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