Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study is well documented and meets generally accepted scientific principles, thus acceptable for assessment.
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium phosphinate
EC Number:
231-669-9
EC Name:
Sodium phosphinate
Cas Number:
7681-53-0
Molecular formula:
H3O2P.Na
IUPAC Name:
sodium phosphinate
Details on test material:
Sample designation:
- Name of test material: Sodium hypophosphite monohydrate
- Physical state: white crystalline solid
- sample No.: 204743.08.0783.02 LIMS 12203
- sample date: 2008-11-06
Certificate of analysis:
- Batch number: 2008-10-28
- Analysis number: N°2008-03878-002
- Analysis date: 2008-11-03
- Composition of test material, percentage of components:
concentration in test substance (Na H2PO2.H2O) between 101.0 and 105.0 % average 102.4 %
- Phosphites (HPO32-): 0.1%
analysis controlled by PG/PM
- Other: pH 10%: between 6.5 and 7.5 average 7.0

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
crystalline
Colour:
White
Substance type:
inorganic

Applicant's summary and conclusion

Conclusions:
Sodium hypophosphite monohydrate is a white cristalline solid.
Executive summary:

Sodium hypophosphite monohydrate is a white cristalline solid.