Nitric Acid → 4-Sulfobenzenediazonium hydroxide

HRID 582948

Reaction equation

HRID 582948 reaction equation
[S:1]([OH:11])(=[O:10])([C:3]1[CH:8]=[CH:7][C:6]([NH2:9])=[CH:5][CH:4]=1)=[O:2].[N+:12]([O-])(O)=O.N([O-])=O.[Na+]>O>[OH-:2].[S:1]([C:3]1[CH:4]=[CH:5][C:6]([N+:9]#[N:12])=[CH:7][CH:8]=1)([OH:11])(=[O:10])=[O:2]

Participants

5

Reactant 3

HCID 944Nitric AcidHCID 8479Sulfanilic acidHCID 23668193Sodium Nitrite

Product 1

HCID 227152964-Sulfobenzenediazonium hydroxide

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

Two hundred grams of CB-A is added to a solution of 10.1 g sulfanilic acid and 6.23 g of concentrated nitric acid in 21 g of water. A solution of 4.87 g of NaNO2 in 10 g of water is added to the rapidly stirring mixture. 4Sulfobenzenediazonium hydroxide inner salt is formed in situ, which reacts with the carbon black. After 15 minutes, the dispersion is dried in an oven at 125 C.

Sources & evidence

ORD record
ord-bd5d9244c8a54f16a91ec9a7ce4eb2ef
Source dataset
uspto-grants-1999_07
Patent number
US05928723

Linked notes

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