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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Water solubility

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Administrative data

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Endpoint:
water solubility
Type of information:
other: MSDS
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
Information on method and guideline not stated
GLP compliance:
not specified
Key result
Water solubility:
40 - 50 other: w/w %
Temp.:
20 °C
pH:
ca. 1.8
Remarks on result:
other: This value is the weight by weight percent as sold on the market. An average value of 45% and density of 1.23 were used in the calculation.
Key result
Water solubility:
550 g/L
Temp.:
20 °C
pH:
ca. 1.8
Remarks on result:
other: The source reported the solubility of the substance as "miscible with water". This value has been derived by the reviewer and is equivalent to the above value in g/l.
Conclusions:
The substance was reported as miscible with water at a temperature of 20°C and pH of ca. 1.8 (550 g/L). Full details are not available and the reliability is unassignable.
Endpoint:
water solubility
Type of information:
other: MSDS
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
Information on method and guideline not stated
GLP compliance:
not specified
Key result
Water solubility:
43 - 48 other: w/w %
Temp.:
20 °C
pH:
ca. 1.8
Remarks on result:
other: This value is the weight by weight percent as sold on the market. An average value of 45% and density of 1.23 were used in the calculation.
Key result
Water solubility:
550 g/L
Temp.:
20 °C
pH:
ca. 1.8
Remarks on result:
other: The source reported the solubility of the substance as "totally miscible with water". This value has been derived by the reviewer and is equivalent to the above value in g/l.
Conclusions:
The substance was reported as miscible with water at a temperature of 20°C and pH of ca. 1.8 (550 g/L). Full details are not available and the reliability is unassignable.
Endpoint:
water solubility
Type of information:
other: MSDS
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
Information on method and guideline not stated
GLP compliance:
not specified
Key result
Water solubility:
40 - 50 other: w/w %
Temp.:
20 °C
pH:
< 2
Remarks on result:
other: This value is the weight by weight percent as sold on the market. An average value of 45% and density of 1.23 were used in the calculation.
Key result
Water solubility:
550 g/L
Temp.:
20 °C
pH:
< 2
Remarks on result:
other: The source reported the solubility of the substance as "fully miscible with water". This value has been derived by the reviewer and is equivalent to the above value in g/l.
Conclusions:
The substance was reported as miscible with water at a temperature of 20°C and pH of ca. 1.8 (550 g/L). Full details are not available and the reliability is unassignable.
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
Information on method and guideline not stated
GLP compliance:
yes
Key result
Water solubility:
43 - 48 vol%
Temp.:
20 °C
Remarks on result:
other: This value is the weight by weight percent as sold on the market. An average value of 45% was used in the calculation.
Key result
Water solubility:
550 g/L
Temp.:
20 °C
Remarks on result:
other: The source reported the solubility of the substance as "soluble in water". This value has been derived by the reviewer and is equivalent to the above value in g/l. Information on pH not stated
Conclusions:
The substance was reported as soluble in water at a temperature of 20°C (550 g/L). Full details are not available and the reliability is unassignable.

Description of key information

Water solubility (BHMT-H): The substance is very soluble in water and has an average water solubility value of 550 g/L under ambient conditions as described in a secondary sources.

Key value for chemical safety assessment

Water solubility:
550 g/L
at the temperature of:
20 °C

Additional information

The substance BHMT-H (and its analogues) are known to be highly hydrophilic and extremely water-soluble. Although supplier's literature is much less detailed than laboratory study reports, given the range of values expected for these types of substance, the uncertainty is not significant in respect of environmental exposure or human health exposure modelling. Typical concentrations of aqueous solutions in commercial supply provides weight of evidence of high loadings. Water solubility in the range 550 - 560 g/L and a typical value of 550 g/L was reported for many commercial solutions.

 

Phosphonate salts are highly water soluble and are supplied as aqueous solutions. Free acids are less soluble than the salts; however, aqueous solutions in excess of l % active material can be prepared. The aqueous salts are miscible in water.

HMDTMP-H is a named impuity in the registered substance. A water solubility value of 15000 mg/L was reported for HMDTMP-H in a secondary source to which no reliability could be assigned.