Skip to Content
Merck
All Photos(1)

Key Documents

8.00691

Sigma-Aldrich

5-Sulfosalicylic acid dihydrate

for synthesis

Synonym(s):

5-Sulfosalicylic acid dihydrate, Salicylsulfonic acid

Sign Into View Organizational & Contract Pricing

Select a Size

All Photos(1)

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C7H6O6S · 2H2O
CAS Number:
5965-83-3
Molecular Weight:
254.21
MDL number:
MFCD00149540
UNSPSC Code:
12352106
EC Index Number:
202-555-6
NACRES:
NA.22

grade

for synthesis
synthesis grade

Quality Level

200

vapor pressure

<1 hPa ( 20 °C)

Assay

≥99.0% (acidimetric)

form

crystals

potency

1850 mg/kg LD50, oral (Rat)

pH

<0.5 (20 °C, 200 g/L in H2O)

mp

109-117 °C (anhydrous substance)

transition temp

flash point 150 °C

solubility

soluble 987 g/L

Analysis Note

Assay (acidimetric): ≥ 99,0 %(m)
Heavy metals (as Pb): ≤ 0,001 %(m)
Identity (IR): conforms

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service