Osmium Tetroxide, Crystalline, Highest Purity, 99.95%
(Osmic Acid Anhydride)
OsO₄   F.W. 254.20   CAS #20816-12-0
Melting Range : 39.5-41.0°C
Boiling Point : 129.7°C
Vapor Pressure @25°C: 9.8 mmHg
Solubility: 5.07% in Cold Water; 6.5% in Hot Water; 25.0% in CCl₄
Osmium Purity: >99.95%
Non-Volatile matter: <0.02%

Small size (2ml), Light-gauge, pre-scored amber glass ampoules. Ampoules containing OsO₄ Crystal, are pre-cleaned and heat sealed in plastic bags to assure a contaminant-free solution. Ampoules are also free of pressure-sensitive labels and, therefore, do not require cleaning prior to solution preparation.

Please call us for special prices on all other quantities and package sizes.

RT	19100		1g	$35.00/g	Add to Cart
RT	19110		10x1g	$34.00/g	Add to Cart
RT	19102		20x1g	$32.50/g	Add to Cart
RT	19103		30x1g	$31.68/g	Add to Cart
RT	19104		40x1g	$31.25/g	Add to Cart
RT	19105		50x1g	$30.00/g	Add to Cart
RT	19112		5x2g/Ampoule	$32.50/g	Add to Cart
RT	19114		5x4g/Ampoule	$32.00/g	Add to Cart
RT	19115		5g/Amp	$34.00/g	Add to Cart
RT	19116		6g/Amp	$34.17/g	Add to Cart
RT	19120		½g	$21.00/½g	Add to Cart
RT	19130		10x½g	$195.00/bx	Add to Cart
RT	19131	Same as 19130	(5 bxs + /lot)	$188.00/bx	Add to Cart
RT	19132		10x¼g	$130.00/bx	Add to Cart
RT	19134		10x1/10g	$66.00/bx	Add to Cart

Aqueous Solution:

To facilitate your work, we now have available a complete line of Osmium Tetroxide Aqueous Solutions with various concentrations. Sealed under dry nitrogen. Prepared in our plant daily. Exact concentrations and volume in pre-scored amber-ampoules.

4% Aqueous Solution:

RT	19140		2ml	7.00	Add to Cart
RT	19150		10x2ml	50.00	Add to Cart
RT	19151	Same as 19150	5bxs/lot	232.00	Add to Cart
RT	19160		5 ml	13.00	Add to Cart
RT	19170		10x5 ml	124.00	Add to Cart
RT	19171	Same as 19170	5bxs/lot	590.00	Add to Cart
RT	19180		10 ml	22.00	Add to Cart
RT	19190		10x10 ml	196.00	Add to Cart
RT	19191	Same as 19190	5bxs/lot	930.00	Add to Cart

2% Aqueous Solution

RT	19152		10x2ml	36.00	Add to Cart
RT	19153	Same as 19152	5bxs/lot	150.00	Add to Cart
RT	19172		10x5 ml	77.00	Add to Cart
RT	19173	Same as 19172	5bxs/lot	360.00	Add to Cart
RT	19192		10x10 ml	114.00	Add to Cart
RT	19193	Same as 19192	5bxs/lot	530.00	Add to Cart

Special orders are encouraged for different solution concentrations and packaging requirements.

Technical Tips

Neutralization and Disposal of Osmium Tetroxide
Making and Air Tight Container for Osmium Tetroxide

Papanicolaou Stain, OG-6

RT	26048-05	OG-6 Stain Solution	500 ml	39.00	Add to Cart
RT	26048-06	OG-6 Stain Solution	1 L	51.00	Add to Cart

Papanicolaou Stain, EA-50 (EA Counterstain)

RT	26049-05	EA-50 Stain Solution	500 ml	52.00	Add to Cart
RT	26049-06	EA-50 Stain Solution	1 L	96.00	Add to Cart

Paraformaldehyde to Picric