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Product Code: RXSOL-24-6014-125
SPECIFICATION FOR SILICA GEL INDICATING (BLUE) / NON INDICATING (WHITE):
| Loss on drying : | Not more that 5% mass |
| Absorption Capacity : | 27% min on the basis of mass |
| PH : | 3.5 to 8. |
| Chlorides : | 0.05% by mass max |
| Cobalt (as CoCl2) : | 0.4 by mass max |
| Ammonium compounds (as NaH3): | 0.5% by mass max |
| Sulphates (Na2SO4) : | 0.5% by mass max |
| Industrial Packing: |
25 / 50 kgs M S drum (Smaller packing available). |
Characteristics :
| Color | Grey |
| Purity | 99% |
| Feature | Premium Quality, Safe Packaging |
| Packaging | Bag |
| Form | Crystal |
| Sachet Pack Size | 1-10kg |
Product Code: RXSOL-42-6146-050
|
Specifications |
Extra Pure |
Industrial |
|
Sodium Acetate |
CH3COONa |
CH3COONa |
| CAS | 127-09-3 | 127-09-3 |
| Molecular Weight | 82.03 | 82.03 |
| Physical Appearance | Snow White PowderWhite | Off White Powder |
| Assay (Min.) | 99% | 98% |
| Loss on Drying (LOD) | 1% Max | 2% Max |
| pH of 5% Aqueous Solution | 7.5 - 9.0 |
7.5 - 9.0 |
| Specific Gravity | 1.528 (Water = 1) | |
| Solubility | Easily soluble in cold water, hot water. |
Odor: Odorless to acetic (Slight.)
Taste: Not available.
Boiling Point: Not available.
Melting Point: 324°C (615.2°F)
Critical Temperature: Not available.
Specific Gravity: 1.528 (Water = 1)
Vapor Pressure: Not applicable.
Vapor Density: Not available.
Volatility: Not available.
Odor Threshold: Not available.
Water/Oil Dist. Coeff.: Not available.
Ionicity (in Water): Not available.
Dispersion Properties: See solubility in water.
Solubility: Easily soluble in cold water, hot water.
Product Code: RXSOL-68-2400-050
10588-01-9 (Anhydrous)
7789-12-0 (Dihydrate)
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Odorless Orange to Red crystals or granules
MELTING POINT 357 C
BOILING POINT 400 C
SPECIFIC GRAVITY 2.35
SOLUBILITY IN WATER Highly soluble (74.0% at 25°C)
pH 3.0 - 4.6 upon concentration
VAPOR DENSITY 10
NFPA RATINGS
Health: 4; Flammability: 0; Reactivity: 2; Special Hazard: OX
FLASH POINT 400 C
STABILITY Stable under ordinary conditions
Product Code: RXSOL-14-1197-250
| PRODUCT NAME | : | GLYCERINE |
| CAS number | : | 56-81-5 |
| UN number | : | |
| Formula | : | C3H8O3 |
| Odour | : | ODOURLESS |
| Solubility in water | : | COMPLETE |
| Density | : | 1.26 at 20 oC |
| Boiling point | : | 290oC |
| Melting point | : | 18 oC |
| Viscosity | : | 2.33 cp at 15 oC |
| Flashpoint | : | 160 oC |
| Explosive limits | : | 0.9 - ? Vol% |
| Vapour pressure | : | .01 mbar at 50 oC |
| Skin absorption/irritation | : | YES |
| TLV Country NL Year 1995 | : | ppm 10 mg/m3 |
| Pollution category 1994 | : |
III |
Product Code: RXSOL-24-1998-001
|
TECHNICAL SPECIFICATION |
|
|
DESCRIPTIONS |
SILICA GEL BLUE |
|
Assay (as SiO2) |
98 % |
|
pH |
6.8 - 7.2 |
| Melting point | 1610oC |
| Boiling Point | 2230oc |
|
Bulk Density gm/ltr |
0.600 – 0.700 |
| Density | 2.6 |
|
Loss on Drying % |
4 - 6 % |
|
Loss on Attrition |
2.5 % Max |
|
Adsorption Capacity at 100 % humidity |
35 - 40 % |
|
Friability |
99.5 |
|
Chloride (as Nacl) |
Max. 0.5% ppm |
|
Sulfates (as Na2SO4) |
Max 0.5 % ppm |
|
Cobalt Chloride (as CaCl2) |
0.5 – 0.7 % |
|
Ammonium Compound (as NH3) |
0 % |
|
Binder as CaSO4 |
0 % |
|
Dimethyl Fumrate (DMF) |
0 % |
|
Particle size |
4 - 6 |
Silica Gel Details
CAS No. : 112926-00-8
Chemical Name : Silica gel
CBNumber : CB1199389
Molecular Formula : O2Si
Formula Weight : 60.08
Product Code: RXSOL-60-1197-001
Product Code: RXSOL-60-6142-500
| Chemical Formula | AgNO3 |
| Molecular Weight | 169.87 Expiration/Reassay Date: (batch specific) |
| CAS # | 7761-88-8 |
|
TEST |
Specification |
DISPOSITION . |
| Chloride | <= 0.0005 % | PASS |
| Clarity of Solution | PASS | PASS |
| Copper | <= 0.0002 % | PASS |
| Free Acid Test | PASS | PASS |
| Iron | <= 0.0002 % | PASS |
| Lead | <= 0.001 % | PASS |
| Purity | >= 99.0 % | PASS |
| Substances not Precipitated by HCI | <= 0.01 % | PASS |
| Sulfate | <= 0.002 % | PASS |
Spec Set: 0377ACS
Analysis may have been rounded to significant digits in specification limits.Product meets analytical specifications of the grades listed.
We deals in vast variety of Silver Nitrate that has found a wide application area and used by several industries like Pharmaceuticals, Fine chemicals, Lab reagents, Ink Industries, Mirror Industries, Lab chemicals, Photo films Manufacturer etc. With immense expertise of over a decade, we have gained in-depth market understanding. The prompt growth of our business based upon the years long expertise & knowledge of the relevant industry. We convert our well planned strategies to develop cost effective & tailor made solutions and together they sum up to provide best quality Silver Nitrate.
Product Code: RXSOL-90-2020-210
Product Code: RXSOL-62-5517-010
Product Code: RXSOL-68-1541-832
Other TYPICAL Purification method of GOLD
Dissolve Gold Scrap into to aqua regia solution and heat the solution slowly, do not boil. Leave the solution at least 1 hrs then Extra nitric of the gold solution can be neutralized with urea addition till the point where the urea does not react any more. Then use Na2SO4 ( sodium metabisulphite ) is better for dropping the gold (free electrons greater reactivity). Rest solution 24 hours. Then filter precipitate.
Or you can use ferrous sulphate in place of Sodium metsabisulphite. Second, for neutralisation you add urea and add zinc dust to reduce all metals.
Method Precipitate the GOLD with sodium metabisulfite/ zinc :
Recover gold from Filings, Setting, Waste water, Consumables used in production, Emery papers, and sweeps from the production floors then dissolve into aqua Regia solution, Let it work 1 night or simply heat it up for a while to shortened the process and on filtration precipitate it. Filter the solution and neutralize it with Urea or just heat it up until all of the nitric vaporized. Watch out not to lose any precious metal during the heating. Test the pH. Precipitate gold using sodium metabisulfite / ferrous sulphate / zinc.
Gold precipitate from aqua regia solution by using hydroquinone. It was so simple and attaining 99.99% purity after firing was an incredible delight.
Refining the silver chloride left over from the solution was a little more of a chore but I got to within 80%.
Method to precipitate the Gold with Hydrazine Hydrate :
Recovere all gold from working area then dissolve all into Aqua Regia Solution. Leave this solution for 10 -12 hrs to complete precipitation, then Filter it out. And addition of Hydrazine hydrate 64 or 85% (liquid) works well to precipitate gold from acid gold plating baths which contain HAuCl4 solution.
After addition of Hydrazine Hydrate you can practically see big brown spongy ball like gold getting precipitated & once all the gold in the solution has precipitated the solution at the top has lot of white foam, which indicates the end of precipitation. Finally neutralise the solution with 25% urea solution.
This will give you the necessary result in recovering pure gold.
We let the solution stand overnight to settle down & recover gold from it by washing it with water.
Hydrazine Hydrate also used in GOLD purifiaction faxctory. Remember Hydrazine Hydrate does not work well with alkaline solution.
NOTE : You use hydrazine hydrate for gold precipitation. Don't add urea in gold chloride solution.
You can also dilute hydrazine hydrate with five parts of water, that is 1:5. Then you add it in your gold chloride solution. You can get exact value by checking your pH level of gold chloride.
Hydrazine Hydrate Reaction can be easily understand by this reaction :::
PtCl4+N2H4=Pt+N2+4HCl
4AuCl3+3N2H4=4Au+3N2+12HCl
4AgNO3+N2H4=4Ag+N2+4HNO3.
Aqua Regia : 3 HCL+1 Nitric Acid.
Product Code: RXSOL-14-1234-567
Product Code: RXSOL-33-4237-025
