Fulminant acute colitis following a self-administered hydrofluoric
Cappell MS, Simon T.
Department of Medicine, UMDNJ-Robert Wood Johnson (Rutgers) Medical
School, New Brunswick.
A 33-yr-old white male presented with bloody diarrhea, leukocytosis,
and left lower quadrant direct and rebound tenderness after a
self-administered concentrated hydrofluoric acid enema while
intoxicated from intranasal cocaine administration. Intraoperative
flexible sigmoidoscopy and a gastrografin enema revealed severe
mucosal ulceration and edema in the rectum and sigmoid colon.
Laparotomy revealed an ulcerated, necrotic, and purulent sigmoid colon
and intraperitoneal pus. The patient underwent a limited sigmoid
resection and a Hartman procedure. Five months later, the patient
presented with a rectal stricture which was resected. This case
demonstrates that a hydrofluoric acid enema can cause fulminant acute
colitis and chronic colonic strictures.
"John Spevacek" <[Only registered users see links. ]> wrote in message news:email@example.com om...
Potassium dichromate K2Cr2O7 (potassium bichromate, red
potassium chromate). Familiar to most pyros because of its bright
orange-red color. Has many uses:
"Dichromate" magnesium against chemical attack.
Added to compositions containing highly reactive zinc, e.g.,
Weingarts Electric Spreader Star
Increase burning rate reaction of: Perchlorates:
Takeo Shimizu reports the burning rate of a 75/25 K
perchlorate/hemp coal increased by 155% when 4-5% potassium
dichromate was added.
In Orange (toxic) smoke (Ellern #133)
It is not, however, used as an oxidizing agent despite an attracting
38% oxygen content. The decomposition reaction as given by
Takeo Shimizu shows why-
4 K2Cr2O7 --> 4 K2CrO4 + 2 Cr2O3 + 3 O2
A little quick math reveals that - 1176 grams of potassium
dichromate yield a miserly 48 grams of oxygen! (4% of starting
weight!) Thus potassium dichromate is a very weak (pyrotechnic)
oxidizer. Shimizu also notes; It is difficult to ignite or to explode a
mixture of potassium dichromate and red phosphors or sulphur
even by impact between iron surfaces.
Sadly the pleasing orange color hides a less then pleasant
personality. While classified by the NFPA a Zero for Fire hazard
and Reactivity (Will not burn. - Normally stable. Not reactive with
water). It rates a Three for Health (Can cause serious injury despite
medical treatment.) Quote the Merk Index: Human Toxicity: Internal
a corrosive poison. Industrial contact may result in ulceration of
hands, destruction of mucous membranes and perforation of nasal
septum. Not a ingredient a pyro would handled in a careless
manner! Non pyros are another matter.
Civilian uses are as many as they are pedestrian: Tanning, dyeing,
painting, decorating porcelain, photolithograpy, staining wood,
bleaching palm oil, wax, and sponges, in dry cells as a depolarizer.
Then there is South Africa -- Where a third to two-thirds of blacks
have been estimate to receive frequent purgative enemas
consisting of plant extracts though truncated cow horn and hollow
reeds administered by traditional healers. These methods with
increasing urbanization are being replaced by domestic and
industrial chemicals given with rubber tubing and syringe. Indeed
among the black population in Cape Town, tribal healers have
been using potassium dichromate in purgative enemas! A bad case
of the wrong chemical in the wrong place!! Even infants may
receive 50 enemas a year.(The herbal version, not the hexavalent
chromium-tissue binding, don't try this at home kids, colon/kidney
destroying, dichromate version.)
All this probable proves something. I'll leave it to the reader to
supply their own comments.
Dunnn LP, et al. Colonic complications after toxic tribal enemas.
British Journal of Surgery, 1991; 78: 545-48. Abstracted in The
Lancet July 20, 1991
Edited for sci.chem - Originally published in The American Fireworks News
I believe it MAY have been published in the "Medical Aspects of Human Sexuality". The
patient brought into the emergency room with a shot-glass - small end first - inserted where
the sun-don't-shine! To remove it ... they filled it with plaster-of-paris inserted a rag.... let
it harden.... and then pulled...!!
As a kid I used to put fluorescein into my bath. I liked the neon-like
color around me. After I run out of fluorescein, I substituted it with
few spoonfulls of K2Cr2O7, but eventually I stopped using it in my
baths because the resulting yellow was not as nice. I did not try any
(I will not allow my children any home chemistry experiments)
"donald j haarmann" <[Only registered users see links. ].net> wrote in message news:<WRN_b.85655$[Only registered users see links. ].worldnet.att.net>...