Gelatin-Dynamites, low-freezing

Gelatin-Dynamites, Low-Freezing. American compns of 25, 40 and 60% LF Gelatin Dynamites are listed in Vol 5 of Encycl, p D1592, Table II, under DYNAMITE... 

For other properties and uses see Straight Dynamite, Ammonia Dynamite, Gelatine Dynamite, Low-Freezing Dynamite, Permissible Dynamite, Semigelatine Dynamite. 

Gelatines, French (Low-Freezing). See Vol 5y 13.20 Ca carbonate 0.35% p D1591, Table I, under DYNAMITE Ref Pepin Lehaileur (1935), p 335... 

American Dynamites, Low Freezing, Non Gelatinized, are a series of straight" dynamites which do not freeze at temps prevailing in the USA in winter. They consist of 20 to 60% of mixed nitric esters (NG with NGc) absorbed on wood pulp(or other carbonaceous materials) and mixed with sufficient Na or K nitrate to maintain any desired oxygen balance... 

Nauchoff s Explosives. Low freezing plastic expls patented prior to WW1 by S.A.S. Nauchoff of Sweden. It was claimed that they were equal to Dynamites in performance. Examples are (1) Liq TNT (gelatinized by dissolving 4p of NC in 96p of liq TNT, called flussige Tri in German) 31, Amm perchlorate 43 ... 

Note Fr low-freezing Gelatine is listed in Table 1, under DYNAMITE, Vol 5, p D1591... 

Gelatine-Dahmenit (Ger). A type of low-freezing gelatinous Dynamite manufd for a long time by the Rummenohl Plant of the... 

Velocity of detonation, 2050m/sec (Ref 7) TeNDG alone is not a satisfactory gela-tinizer for NC, but mixed with NG it gelatinizes NC and, hence, has been used as a low-freezing ingredient of NG dynamites. 

Stettbacher (Ref 4, p 240) who calls " Fliissige Tri the liquid bro-blk product which could be separated from crude TNT, stated chat it. was used in great quantities in plastic, low-freezing Gelatin-dynamites. The same author called (Ref 4, p 261) "Tropfol the liquid which dripped from crude DNT crysts and stated that it was used in AN and chlorate expls. We have listed in our Encycl (Ref 6, p Cl59) several French, Italian and Swiss Cheddites which, contained 70—79% Na chlorate 16 to 23-8% liq DNT together with other ingredients... 

These powdery Dynamites were low-freezing and contained, besides NG/NGc and large amt of Na nitrate, a substantial amt of coated AN. One of the formulations contained less than 0.1% Collodion Cotton for reasons unknown to us. The quantity was not sufficient to serve as a gelatinizer. Oxygen balance of these explosives was near zero... 

Sicherheitsdynamit. Ger for Safety Dynamite, safe to use in coal mines. They contain 20—25% NG (or a low-freezing mixt of 4/1 NG/Nitro-glycol mixed with dinitrochlorohydrin which serves as a phlegmatizer) and a dope such as AN, woodmeal, etc. If the NG is phlegmatized by means of collodion cotton, the resulting Dynamite belongs to the Gelatine Dynamite class... 

Spezialsprengelatine (Swiss). A name given by Stettbacher to low-freezing, powerful Dynamites manufd at Isleton and used in the construction of the Jungfrau tunnels. Essentially, these expls were based on Blasting Gelatin in which part of the NG was replaced by aromatic nitrocompds. One such expl had a d of 1.58g/cc and was a reddish-yellow, rubber-like material Ref Naoum, Expls (1927), 113... 

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