Is it safe to use for dental impressions for forensic analysis in a high school lab?

I do not believe that this product is a dental grade alginate which is what you will need. Try this http://www.amazon.com/Hollywood-Impressions-Molding-Powder-Alginate/dp/B000KI6W5Y/ref=sr_1_1?ie=UTF8&qid=1398300899&sr=8-1&keywords=dental+impression+kit

How many whole adult hand casts could you make with one box?

Most probably three or four possibly more, depending upon how closely the casting container is made and how far up the arm the casting is to be made. You have to be a bit careful of having the alginate too thin particularly at the edges where you transition from the casting to air. it can and will tear if it is too thin. You might be able to make a dozen or so casting if you simply paint the alginate onto The hand and then reinforce the cast with plaster of paris. I've heard of this method, but, have not tried it.

I want to make a mold of 16 different 4 year old's hands. How much of this stuff will I need if I'm using 1/2 gallon containers for each one?

Well if your using 1/2 gallon containers. Your mixture rate is 1:1 . that is 1 cup alja safe 1 cup water. So you need to probably use for each cast 3 to 4 cups alja safe and 3 to 4 cups water. 16 casts you would probably need about 9 pounds of alja safe.

How much heat alija safe can tolerate when casting?

If casting material reaches the boiling point of water, the moisture in the Alja Safe will convert to steam, causing bubbles in your casting.

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Smooth-On 1 X Alja-Safe Alginate 3-lb Box, Inc.

Smooth-On 1 X Alja-Safe Alginate 3-lb Box, Inc.

Product ID: 253415482

Details

Brand
Smooth-On
Item form
Paste Putty
Material
Alginate
Special features
Non Toxic
Specific uses for product
Casting

⏳8 min pot life

🕒10 min demold time

🛡️Crystalline-silica free

B/.301

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖌️ Mold your masterpiece safely and swiftly—because details matter.

QUICK EASY USE - Just add water for a fast 8-minute working time and 10-minute demold.
SKIN SAFE FORMULA - Gentle, non-toxic, and free from harmful crystalline silica.
VERSATILE CASTING - Perfect for plaster, gypsum, and resin reproductions.
STABLE SET NO COLLAPSE - Reliable molds that hold shape better than competitors.
PRECISION DETAIL CAPTURE - Reproduce every contour with unmatched accuracy.

Smooth-On Alja-Safe Alginate is a skin-safe, crystalline-silica free molding powder designed for fast, precise body casting. With an 8-minute pot life and 10-minute demold time, it delivers stable, high-detail molds ideal for plaster and resin reproductions. Trusted by professionals for safe, reliable, and easy-to-use performance.

Specifications

ASIN	B000KVSU60
Brand Name	Smooth-On
Color	Pink
Compatible Material	Plaster, Gypsum, Resin
Container Type	Box
Customer Reviews	4.6 4.6 out of 5 stars (1,150)
Full Cure Time	8 Minutes
Item Form	Paste, Putty
Item Package Quantity	1
Item Weight	1.36 kg
Manufacturer	Smooth-On, Inc
Material Type	Alginate
Model	SOaljasafe3lb
Number of Pieces	1
Other Special Features of the Product	Non Toxic
Part Number	75163586060
Specific Uses For Product	Casting
UPC	751635296602 751635837621
Unit Count	1360.7771 Grams
Viscosity Level	Low to Medium
Volume	3 Liters
Water Resistance Level	Not Water Resistant

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