Input interpretation
sodium hyposulfite
Chemical names and formulas
formula | Na_2S_2O_3 Hill formula | Na_2O_3S_2 name | sodium hyposulfite alternate names | chlorine control | chlorine cure | declor-it | disodium thiosulfate | S-hydril mass fractions | Na (sodium) 29.1% | O (oxygen) 30.4% | S (sulfur) 40.6%
Structure diagram
Structure diagram
vertex count | 7 edge count | 4 Schultz index | 64 Wiener index | 16 Hosoya index | 5 Balaban index | 3.024
Basic properties
molar mass | 158.1 g/mol phase | solid (at STP) melting point | 48 °C boiling point | 100 °C density | 1.67 g/cm^3
Units
Solid properties (at STP)
density | 1.67 g/cm^3
Units
Chemical identifiers
![CAS number | 7772-98-7 PubChem CID number | 24477 PubChem SID number | 24859174 SMILES identifier | [O-]S(=O)(=S)[O-].[Na+].[Na+] InChI identifier | InChI=1/2Na.H2O3S2/c;;1-5(2, 3)4/h;;(H2, 1, 2, 3, 4)/q2*+1;/p-2/f2Na.O3S2/q2m;-2 MDL number | MFCD00003499](../image_source/13beaa9cf2c8308371cf05c912c27acb.png)
CAS number | 7772-98-7 PubChem CID number | 24477 PubChem SID number | 24859174 SMILES identifier | [O-]S(=O)(=S)[O-].[Na+].[Na+] InChI identifier | InChI=1/2Na.H2O3S2/c;;1-5(2, 3)4/h;;(H2, 1, 2, 3, 4)/q2*+1;/p-2/f2Na.O3S2/q2m;-2 MDL number | MFCD00003499
NFPA label
NFPA label
NFPA health rating | 1 NFPA fire rating | 0 NFPA reactivity rating | 0
Toxicity properties
odor | odorless
RTECS classes | other
Ion equivalents
Na^+ (sodium cation) | 2 (S_2O_3)^(2-) (thiosulfate anion) | 1