Sulfuric Acid → Sulfuric Acid

HRID 2195573Notes

Reaction equation

HRID 2195573 reaction equation
[CH2:1]1[C@H:6]([OH:7])[C@@H:5]([O:8][S:9]([O-:12])(=[O:11])=[O:10])[C@H:4]([O:13][C@H:14]2[C@H:19]([OH:20])[C@@H:18]([OH:21])[C@H:17]([O:22][C@@H:23]3[O:28][CH2:27][C@@H:26]([O:29][C@H:30]4[C@@H:35]([O:36][S:37]([O-:40])(=[O:39])=[O:38])[C@@H:34]([O:41][S:42]([O-:45])(=[O:44])=[O:43])[C@H:33]([OH:46])[O:32][C@@H:31]4[CH2:47][OH:48])[C@H:25]([OH:49])[C@H:24]3[OH:50])[O:16][C@@H:15]2[CH2:51][OH:52])[O:3][C@@H:2]1[CH2:53][O:54][S:55]([O-:58])(=[O:57])=[O:56].[S:59](=[O:63])(=[O:62])([OH:61])[OH:60]>O>[CH2:1]1[C@H:6]([OH:7])[C@@H:5]([O:8][S:9]([O-:12])(=[O:11])=[O:10])[C@H:4]([O:13][C@H:14]2[C@H:19]([OH:20])[C@@H:18]([OH:21])[C@H:17]([O:22][C@@H:23]3[O:28][CH2:27][C@@H:26]([O:29][C@H:30]4[C@@H:35]([O:36][S:37]([O-:40])(=[O:38])=[O:39])[C@@H:34]([O:41][S:42]([O-:45])(=[O:44])=[O:43])[C@H:33]([OH:46])[O:32][C@@H:31]4[CH2:47][OH:48])[C@H:25]([OH:49])[C@H:24]3[OH:50])[O:16][C@@H:15]2[CH2:51][OH:52])[O:3][C@@H:2]1[CH2:53][O:54][S:55]([O-:58])(=[O:56])=[O:57].[OH:62][S:59]([O:61][S:9]([OH:11])(=[O:10])=[O:8])(=[O:60])=[O:63].[S:9](=[O:10])(=[O:8])([OH:12])[OH:11]

Participants

6

Reactant 2

HCID 1118Sulfuric AcidHCID 86574936Cellulose sulfate sodium salt

Product 3

HCID 1118Sulfuric AcidHCID 62682Disulfuric acidHCID 86574936Cellulose sulfate sodium salt

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Sodium cellulose sulfate (SCS) is a long known, water-soluble polymer of the sulfuric acid half ester of cellulose. SCS is formed by the esterification of the hydroxyl groups of the cellulose with a sulfating agent, e.g. sulfuric acid anhydride, sulfuric acid or their derivatives followed by the conversion of the acidified half ester into a neutral sodium salt.

Sources & evidence

ORD record
ord-555c16fb04c24fdaa093cc23798ad34e
Source dataset
uspto-grants-2012_12
Patent number
US08337901B2

Reaction notes

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