24 A A N A L Y T I C A L C H E M I S T R Y

SQUEEZE TYPE

Polyethylene WASH B O T T L E S

• UNBREAKABLE • LIGHTWEIGHT

• FLEXIBLE

• CHEMICALLY RESISTANT

• VENTED TO PREVENT DRIPPING

• FITTINGS SOLD SEPARATELY

9823-E. Washing Bottles, Complete

WASHING BOTTLES, Squeeze Type, Polyethylene, of chemically resistant, 100% pure polyethylene, with high molecular weight and made without additives or plasticizers to provide a flexible, tough, lightweight container, practically unbreakable in use. Squeezing the bottle, grip­ped naturally in one hand, produces a steady, controllable stream or a few drops, as desired, and delivery is stopped instantly when pressure is released. At room temperature, this formulation of polyethylene is inert to distilled water, buffered, acidic or alkaline wash solutions, and not significantly attacked by corrosive solutions such as concentrated hydrogen peroxide, but is not recommended for use at temperatures above 70° C, or for aromatic hydrocarbons and other organic solvents which may permeate through the walls.

Both screw cap and delivery tube are of polyethylene. The delivery tube has carefully formed tip, and the screw cap has a tiny vent to prevent possible dripping caused by overpressure resulting from rise in room temperature, etc.

9823-E. Washing Bottles, Squeeze Type, Polyethylene, as above described, com­plete with vented screw cap and delivery tube.

Capacity, ounces 4 8 16 Diameter of bottle, inches l7 /s 2l/t 3 Cap size No 24 28 28

Each 76 .89 1.05 Per dozen, one size only 8 19 9.60 11.32 Net weight, oz 1 1 2

NOTE—Dripping of wash water from delivery tips of unvented polyethylene washing bottles, caused by internal overpressures resulting from temperature rise after bottle has been capped, will be at the rate of 1 ml per degree Centi­grade in 16 oz. bottle if ambient air rises more than 3° C. If vent is not de­sirable, it can be sealed in laboratory by application of a heated rod.

9823-F. Fittings, only, with vented screw cap and bent delivery tube with carefully formed tip, as supplied with 9823-E; for replacement, or for conversion of stock Polyethylene bottles into Wash Bottles.

To fit Bottles, capacity oz 4 8 or 16 Cap size No _24 28 Each 52 .52 Per dozen, one size only 5.60 5.60 10% discount from "dozen" price in assortments of 144 or more.

NOTE—Polyethylene Washing Bottle Fittings for attachment to Polyethylene Bottles, 2 oz. and 32 oz. capacity, can be supplied on special order.

9823-F, Showing method of

Fig. 2 packaging Fittings

ARTHUR H. THOMAS COMPANY LABORATORY APPARATUS AND REAGENTS

WEST WASHINGTON SQUARE PHILADELPHIA 5, PA.

Teletype Services: Western Union W U X and Bell System PH-72

Telephones : Philadelphia, MArket 7-5600—New York (private line) REctor 2-5035—Washington, JUniper 7-5867 Baltimore, Enterprise 5600—Boston, Enterprise 2100

9823-F, Fig. 1 Fittings only (sold separately)