Loading...
|
PHOTOCHEM Sodium Thiosulphate pent per 1 kg (05540-1000PP)
|
$22.00(AUD inc. Tax)
Quantity Pricing For PHOTOCHEM Sodium Thiosulphate pent per 1 kg Ref No: 05540-1000PP | Quantity | AUD Inc. Tax | AUD Ex. Tax | US Export | 1 - 1 | $22.00 | $20.00 | $13.00 | 2 - 9 | $19.80 | $18 | $11.70 | 10+ | $16.50 | $15 | $9.75 |
|
|
|
Sodium Thiosulfate is a white translucent crystals or powder that is common as the pentahydrate form; melting at 48 C; readily soluble in water and oil of turpentine; aqueous solution is slightly alkaline which decompose to sulfate and sulfide in the air. It is a moderate reducing agent. It is a source of thiosulfate ion (S2O3-2) (dissolves silver salts). Its major use is as a fixing agent in photography for developing film and the extracting silver from ore. It is used in chrome-tanning leather and in chemical manufacture as a source of sulfide ion. It is also used in paper, textile, water treatment industry and gas purification.
CAS NO. |
7772-98-7 (Anhydrous) 10102-17-7 (Pentahydrate) |
|
EINECS NO. |
231-867-5 |
FORMULA |
Na2O3S2 |
MOL WT. |
158.10 |
H.S. CODE
|
|
TOXICITY |
|
SYNONYMS |
Thiosulfuric acid, disodium salt; Sodium Oxide Sulfide; |
antichlor; HYPO; Hyporice; Sodium hyposulfite; sodium subsulfite; |
DERIVATION |
|
CLASSIFICATION
|
|
PHYSICAL AND CHEMICAL PROPERTIES (Anhydrous)
|
PHYSICAL STATE |
White crystals or powder |
MELTING POINT |
43 C |
BOILING POINT |
|
SPECIFIC GRAVITY |
1.667 |
SOLUBILITY IN WATER |
Soluble (33%) |
pH |
6.5 - 8 |
VAPOR DENSITY |
|
AUTOIGNITION
|
|
NFPA RATINGS
|
Health: 2; Flammability: 0; Reactivity: 0 |
REFRACTIVE INDEX
|
|
FLASH POINT |
|
STABILITY |
Stable under ordinary conditions. Hygroscopic. |
GENERAL DESCRIPTION & APPLICATIONS
|
Sodium Thiosulfate is a white translucent crystals or powder that is common as the pentahydrate form; melting at 48 C; readily soluble in water and oil of turpentine; aqueous solution is slightly alkaline which decompose to sulfate and sulfide in the air. It is a moderate reducing agent. It is a source of thiosulfate ion (S2O3-2) (dissolves silver salts). Its major use is as a fixing agent in photography for developing film and the extracting silver from ore. It is used in chrome-tanning leather and in chemical manufacture as a source of sulfide ion. It is also used in paper, textile, water treatment industry and gas purification. |
SALES SPECIFICATION |
ANHYDROUS TECH GRADE
|
APPEARANCE
|
white to off-white crystalline powder
|
Na2S2O3 |
97.5% min
|
HEAVY METALS |
20ppm max
|
ANHYDROUS PHOTO GRADE
|
Na2S2O3 |
98.5% min
|
Na2SO3 |
0.5% max
|
NaOH |
0.01% max
|
SULFIDE
|
2ppm max |
Fe
|
10ppm max
|
HEAVY METALS |
10ppm max
|
FREE ACID
|
20ppm max
|
INSOLUBLES MATTER |
0.5% max
|
PENTAHYDRATE
|
Na2S2O3•H2O |
99.5% min
|
Fe
|
10ppm max
|
HEAVY METALS |
10ppm max
|
FREE ACID
|
0.01% max
|
NaOH
|
0.015% max
|
INSOLUBLES MATTER |
0.2% max
|
30% SOLUTION
|
Na2S2O3 |
29.0 - 31.0%
|
pH
|
6.5 - 9 |
TRANSPORTATION
|
PACKING |
25kgs, 50kgs, 1mt in Bag |
HAZARD CLASS |
Not regulated |
UN NO. |
|
OTHER INFORMATION |
Hazard Symbols: n/a, Risk Phrases: n/a, Safety Phrases: 24/25 |
No accessories for this product.
|
|
FREE FREIGHT or POSTAGE
(Packing, handeling and shipping charges have been incorporated in the cost of these goods)
Today we are offering free freight in Australia on this product.Small items will ship via Australia post. All other products will ship via road freight or local couriers.This is a limited offer and subject to change at any time.
For Lab service products the return post or freight has been incorporated in the price and for Drop box only services there is NO freight applicable.
Close