This item is usually Drop Shipped from the MFR/Distributor within 7-10 days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable or returnable.
| Synonyms |
Sulfite of Soda Sodium sulfite anhydrous Disodium sulfite Sulfurous acid, disodium salt Exsiccated sodium sulfite |
| Appearance | White Granular Crystals, or powder |
| Uses |
As a preservative of developing agents Constituent of the acid fixing bath Blackener in negative intensification Active energizer in amidol development To clear Polaroid Type 55 black & white negatives |
| Chemical Formula | Na2SO3 |
| Notes | Sodium sulfite is the most widely used preservative in developers. It also plays an important part in the process itself. |