Formaldehyde
(Formalin) to Gill's
Formaldehyde, Reagent, A.C.S. (Formalin)
HCHO F.W. 30.03 CAS #50-00-0
Specific Gravity: 1.09
A.C.S. Specifications:
| Assay | 35.5 to 38.0% | |
| Residue after ignition | 0.005% | |
| Color (A.P.H.A.) | 10 | |
| Sulfate (SO4) | 0.002% | |
| Heavy Metal (as Pb) | 5ppm | |
| Titrate Acid | 0.006 meq/g | |
| Chloride (Cl) | 5ppm | |
| Iron (Fe) | 5ppm |
| RT | 15680 | 450ml | 12.00 |  |
|
| RT | 15681 | 4x450ml | 40.00 | |
|
| RT | 15682 | 1qt(946ml) | 22.00 | |
Formaldehyde, 37%, Microfiltered (Formalin Microfiltered)
HCHO F.W. 30.03 CAS# 50-00-0
Microfiltered with a 0.45 micron membrane; suitable as an EM fixative when
a methanol free solution is not necessary.
| RT | 15686 | 10x10ml | 25.00 | |
Formaldehyde
(Paraformaldehyde) Glutaraldehyde, Karnovsky's Fixative Kit:
Please see Paraformaldehyde-Glutaraldehyde Solution Karnovsky's Fixative.
| 15720 | kit | 17.00 | |
||
| 15730 | box of 5 kits | 76.50 | |
Formaldehyde Aqueous Solution (Paraformaldehyde
Aqueous Solution),
EM Grade
Paraformaldehyde - methanol free solution. A more efficient and rapid penetrant fixative used in combination with Glutaraldehyde and Acrolein fixatives. Easy to break, prescored, 10ml ampoules sealed under inert gas, or
| 16% Paraformaldehyde | 15700 | |
| 10% Paraformaldehyde | 15712 | |
| 20% Paraformaldehyde | 15713 | |
| 32% Paraformaldehyde | 15714 | |
100ml bottles.
| RT | 15700 | 16% Paraformaldehyde (formaldehyde) aqueous solution | 10ml | 5.00 | |
| RT | 15710 | 16% Paraformaldehyde (formaldehyde) aqueous solution | 10x10ml | 22.50 | |
| RT | 15710-S | 16% Paraformaldehyde (formaldehyde) aqueous solution | 100ml bottle | 21.00 | |
| RT | 15711 | 16% Paraformaldehyde (formaldehyde) aqueous solution | 10x10ml | 210.00 | |
| RT | 15712 | 10% Paraformaldehyde (formaldehyde) aqueous solution | 10x10ml | 20.50 | |
| RT | 15712-S | 10% Paraformaldehyde (formaldehyde) aqueous solution | 100ml | 19.00 | |
| RT | 15713 | 20% Paraformaldehyde (formaldehyde) aqueous solution | 10x10ml | 26.00 | |
| RT | 15713-S | 20% Paraformaldehyde (formaldehyde) aqueous solution | 100ml | 24.00 | |
| RT | 15714 | 32% Paraformaldehyde (formaldehyde) aqueous Solution | 10x10ml | 31.00 | |
| RT | 15714-S | 32% Paraformaldehyde (formaldehyde) aqueous solution | 100ml | 29.00 | |
In addition to our complete line of Formaldehyde solutions shown above
we have now added to the line.
Since the DOT (Department of Transportation) has changed the definition of what a non dangerous solution of formaldehyde is to under 10%, we are now offering an 8% and a 4% solution. This will allow us to ship overnight as well as overseas without any hazardous charges saving our customers a good deal of money.
The quality of our 8% and 4% aqueous Paraformaldehyde solution is as good as all of the other concentrations that we offer.
Perfusion Wash and Fixative
Ready to Use
For all of the best results we offer ready to use Perfusion washes and fixatives which are recommended by the NeuroScience Association. All of our solutions are ready made and are of the highest quality.
We have three groups of solutions commercially available.
Group I :
Perfusion wash and Fixative Technical Grade. To be used for Standard stains:
Perfusion Wash (1220SK): Phosphate Buffered Saline 01.M
Phosphate Buffer pH 7.2-7.4
Perfusion Fixative(1221SK): 10% Phosphate Buffered
Formaldehyde
Group II:
Perfusion wash and Fixative Reagent Grade. To be used for Standard and ImmunoHistochemistry Stains.
Perfusion Wash (1219SK): Phosphate Buffered Saline 0.1M
Phosphate Buffer pH 7.2-7.4
Perfusion Fixative (1224SK): Paraformaldehye 4%/Sucrose
4% in Phosphate Buffer 0.2M Ph 7.2
Group III:
Perfusion wash and Fixative Superior Reagent Grade.
For the best results use this group. This is Sodium cacodylate based for NSA’S Disintegrative Degeneration Stain
Perfusion Wash (1222SK): 0.8% NaCl/0.4% Dextrose/0.8% Sucrose/ 0.023% CaCl2 /Sodium
Cacodylate 0.034%
Perfusion Fixative (1223SK): 4% Paraformaldehyde/4% Sucrose/ 1.4% Sodium Cacodylate
For a complete procedure and protocol for the use of these washes and fixatives please see the following site: www.neuroscienceassociates.com/perf-solution1 or 2 or 3.htm
| 1220SK | Perfusion Wash, Technical | 1000 ml | 24.00 | |
|
| 1221SK | Perfusion Fixative, Technical | 1000 ml | 38.00 | |
|
| 1219SK | Perfusion Wash, Reagent | 1000 ml | 25.00 | |
|
| 1224SK | Perfusion Fixative, Reagent | 1000 ml | 40.00 | |
|
| 1222SK | Perfusion Wash, Super Reagent | 1000 ml | 26.00 | |
|
| 1223SK | Perfusion Fixative, Super reagent | 1000 ml | 42.00 | |
If you want a custom wash or fixative made please just let us know and we will be happy to make you whatever you require
Technical Tip:
The Fixative for Use in Fixing Cornea
Ampoule Breaker; Soft Silicon
Reusable – Made from soft silicone. It offers a simple way to break pre-scored glass ampoules safely. Accommodates 5, 7, and 10 ml size ampoules. Reduces injury and spillage.
| 60600 | Ampoule Breaker | each | 15.00 | |
Ampoule Cracker™
The Ampoule Cracker™ is a disposable plastic fracture and safety collar, which is specially designed to aid in the breaking open of pre-scored glass ampoules. Simply slip the Ampoule Cracker™ over the top at the pre-scored portion, snap it, and discard both the ampoule top and the safety collar to prevent cross contamination
| 60605-04 | Ampoule Cracker for Ampoule Size 1 – 4 ml | 500/pk | 35.00 | |
| 60605-10 | Ampoule Cracker for Ampoule Size 5 – 10 ml | 500/pk | 35.00 | |
| 60605-20 | Ampoule Cracker for Ampoule Size 10 – 20 ml | 500/pk | 67.00 | |
Formalin Spill Control; F-gard- ER
For the handling and disposing of formaldehyde containing solutions. It immobilizes, cools, and contains spills. As well, it reduces the escape of formaldehyde gas and significantly reduces formalin concentration. F-gard- ER aids in reducing exposure to formaldehyde gases by immobilizing the formalin and transforming it to an easily removed semi-solid mass. The mass cools rapidly minimizing formaldehyde off-gassing.
| 24140-01 | Formalin Spill Control | 11 oz | 19.00 | |
|
| 24140-06 | Formalin Spill Control | 6 x 11 oz | 102.00 | |
Formalin,
Low odor
Please see listing in Histology: Chemicals for Fixing and Dehydrating.
Formalin, Neutral, Buffered 10% w/v
in Acetate Buffer
Buffered with Sodium Acetate in accordance with the A.F.I.P. manual
of Histology. Filtered and ready-to-use.
pH 6.0 to ph 7.1 at 20°C
| RT | 15738-01 | Formalin 10% Buffered in Acetate | 1L | 18.00 | |
| RT | 15738-04 | Formalin 10% Buffered in Acetate | 4L | 49.00 | |
Formalin, Neutral, Buffered 10% w/v
in Phosphate Buffer
Buffered with phosphate in accordance with the A.f.I.P. manual of Histology.Filtered
and ready-to-use.
pH 6.9 to 7.1 at 25°C
| RT | 15740 | Formalin 10% Buffered in Phosphate | 450ml | 12.00 | |
| RT | 15740-01 | Formalin 10% Buffered in Phosphate | 1L | 19.00 | |
| RT | 15740-04 | Formalin 10% Buffered in Phosphate | 4L | 56.00 | |
Formamide, Ultra High Purity
HCONH2 F.W. 45.04 CAS #75-12-7
Specific Gravity: 1.128-1.132
Glass Distilled. Exceeds A.C.S. Specifications
Specifications:
| Assay | 99.9% | |
| Iron. | 0.5ppm | |
| Copper | 0.1ppm | |
| Lead | 0.5ppm | |
| Zinc | 0.5ppm |
| RT | 15745 | Formamide, Ultra High Purity | 100ml | 42.00 | |
| RT | 15746 | Formamide, Ultra High Purity | 500ml | 124.00 | |
| RT | 15747 | Formamide, Ultra High Purity | 4x500ml | 356.00 | |
Formic Acid 96%, Reagent, A.C.S.
HCOOH F.W. 46.03 CAS #64-18-6
Specific Gravity: 1.22
| RT | 15750 | Formic Acid 96% | 225ml | 9.00 | |
| RT | 15760 | Formic Acid 96% | 1 liter | 28.00 | |
Formvar 15/ 95 Resin, Powder
CAS #63450-15-7
Polyvinyl formvar desiccated. Used to prepare Support films.
Soluble in ethylene dichloride, chloroform or dioxane.
| RT | 15800 | Formvar 15/ 95 Resin | 100g | 10.00 | |
Formvar Solution in Ethylene Dichloride
Microfiltered-ready to use.
| RT | 15810 | 0.25% | 100ml | 9.00 | |
| RT | 15820 | 0.50% | 100ml | 10.00 | |
| RT | 15830 | 1.00% | 100ml | 11.00 | |
| RT | 15830-25 | 1.00% | 4x25ml | 13.50 | |
*Any of the above percentages are packed in 25ml bottles to avoid its classification as a hazardous chemical for shipping purposes. Please specify % upon ordering.
Gach Kit
Please see listing in Embedding Media Kits.
| RT | 15920 | Giemsa Stain Solution | kit | 35.00 | |
Technical Tip:
Preparation of Gelatin Adhesive
Gelatin, Powder, U.S.P.
CAS #9000-70-8
Solubility: 12% in H2O at 20°C
pH (1% in H2O): 3.5-5.0
Residue after ignition: <2%
Type A-from Porcine skin (acid cured tissue)
Type B-from Bovine skin (base cured tissue)
The strength of the gel is based on the bloom number. The higher
the bloom number the stronger the gel.
- Used as a combination Acrylamide-Gelatin-Jung resin for cryosectioning of large and soft tissues (eggs, fishes, insects) Hartmann, R. (1984). A new embedding medium for cryosectioning eggs of high yolk and lipid content. Eur. J. Cell Biol., 34:206
- Used to prepare gelatin-chrome alum adhesive to coat glass slides for mounting semi-thin sections for staining.
| RT | 16560 | Gelatin, Type A; × 60 Bloom | 100g | 48.00 | |
| RT | 16562 | Gelatin, Type A; × 175 Bloom | 100g | 48.00 | |
| RT | 16564 | Gelatin, Type A; × 300 Bloom | 100g | 48.00 | |
| RT | 16566 | Gelatin, Type B; × 75 Bloom | 100g | 48.00 | |
| RT | 16568 | Gelatin, Type B; × 225 Bloom | 100g | 48.00 | |
Giemsa Solution
| Glycerin (CAS#: 56-81-5): | 61% |
| Methyl Alcohol (CAS#: 67-56-1): | 38.3% |
| Azur II (CAS#: 37247-10-2): | 0.16% |
| Azur II Eosin (CAS#: 53092-85-6): | 0.06% |
Specific Gravity: 0.89
Differentiates types of leucocytes, bacteria and inclusion bodies.
Giemsa, Centralbl. F. Publ., Abt. 1,37, 308 (1904) Stain for thick blood films;
shows malarial parasites. Barber and Komp, Publ. Health Rep., 44, 2330 (1929)
Bone marrow and stain for showing cell morphology; together with May-Grunwald
Solution for pap staining. Pappenheim, Folia Haemat., 13, 338 (1912)
| RT | 15940 | Giemsa Stain Solution | 100ml | 18.00 | |
Giemsa Stain, Certified, Powder
CAS #51811-82-6
See the listing in Certified
Dyes/Stains
| RT | 15942 | 10g | 39.00 | |
For our Giesma Stain Solution
See the listing in Histology: Certified Dyes/Stains
Gill’s Hematoxylin Staining Solution
Gill's Hematoxylin is a specially formulated solution for use as a biological stain for the nuclei and nuclear chromatin of normal and abnormal cells whether in whole or sliced cells. Our Gill's Hematoxylin is designed to use at its full strength. It is microfiltered prior to shipment; therefore, filtration before use is not required. For repeated use further filtration is recommended. At the discretion of the user, the Gill's Hematoxylin No. 2 and No. 3 may be diluted with ethylene glycol (25% is recommended) to produce a weaker stain solution.
| RT | 26030-10 | Gill's Hematoxylin No. 1 | 1 L | 45.00 | Add to Cart |
| RT | 26030-14 | Gill's Hematoxylin No. 1 | 4 L | 152.00 | Add to Cart |
| RT | 26030-20 | Gill's Hematoxylin No. 2 | 1 L | 44.00 | Add to Cart |
| RT | 26030-24 | Gill's Hematoxylin No. 2 | 4 L | 154.00 | Add to Cart |
| RT | 26030-30 | Gill's Hematoxylin No. 3 | 1 L | 46.00 | Add to Cart |
| RT | 26030-34 | Gill's Hematoxylin No. 3 | 4 L | 162.00 | Add to Cart |
