Anonymous Contributions
- A student knocked over a 100 ml bottle of butyric acid in the fumehood. Most of the acid was cleaned up by the teacher but the plastic containment was not cleaned up. The teacher left the fumehood on all night to vent the remaining vapor. When the teacher entered the school the next day he was confronted by the head of maintenance who questioned him about a mysterious smell in the home economics room. To the teachers astonishment the room smelt strongly of butyric acid. As it happened the superintendent, principal and assistant principal were all out of town at conferences. The guidance councilor was in charge. When he arrived he called the poison control center and was told that the vapor was flammable and that the fumes could put students at risk. In the interim the chemistry teacher and the head of maintenance had entered the attic space and found the problem. The summer before a pitched roof had been placed over the original flat roof. In the process the fumehood had not been connected to the outside of the new roof but extended about halfway into the new space below the roof. It appeared that the vented butyric acid vapors had been swept into the area above the home economics area and vented into the room. The guidance councilor decided the risk was too great for pregnant girls and proceeded to call all the girls he thought might be pregnant to the office and dismissed them.
- A custodian was rendered unconscious when he entered a storage area in a middle school. The teacher had spilled a solution of 37% formaldehyde in the room and failed to tell anyone. Fortunately the custodian was rescued by a friend. After a brief stay at a local hospital he was released.
- A high school chemistry teacher spilled a one quarter pound bottle of bromine in a wooden box. He was overcome by the vapor and had to be hospitalized. He returned to work six months later and suffered a 20% loss of lung capacity from the incident.
- Students in a high school chemistry class were studying the difference between mixtures and compounds. In the first part of the lab sulfur was mixed with iron and the sulfur was removed by dissolving the sulfur in carbon disulfide. In the second part of the lab iron and sulfur were mixed in the correct proportions to make iron sulfide. The sample was heated to bring about the desired reaction. Unfortunately some of the students were much faster than others and the two parts of the experiment were occurring at the same time. One student placed her solution of sulfur and carbon disulfide in the chemical crock and put the cover back on. Shortly thereafter a second student placed a hot test tube in the crock. The resulting explosion sent broken glass flying in all directions. Fortunately all the students were wearing goggles and no one was hurt.
- A student knocked over a 100 ml bottle of butyric acid in the fumehood. Most of the acid was cleaned up by the teacher but the plastic containment was not cleaned up. The teacher left the fumehood on all night to vent the remaining vapor. When the teacher entered the school the next day he was confronted by the head of maintenance who questioned him about a mysterious smell in the home economics room. To the teachers astonishment the room smelt strongly of butyric acid. As it happened the superintendent, principal and assistant principal were all out of town at conferences. The guidance councilor was in charge. When he arrived he called the poison control center and was told that the vapor was flammable and that the fumes could put students at risk. In the interim the chemistry teacher and the head of maintenance had entered the attic space and found the problem. The summer before a pitched roof had been placed over the original flat roof. In the process the fumehood had not been connected to the outside of the new roof but extended about halfway into the new space below the roof. It appeared that the vented butyric acid vapors had been swept into the area above the home economics area and vented into the room. The guidance councilor decided the risk was too great for pregnant girls and proceeded to call all the girls he thought might be pregnant to the office and dismissed them.- A custodian was rendered unconscious when he entered a storage area in a middle school. The teacher had spilled a solution of 37% formaldehyde in the room and failed to tell anyone. Fortunately the custodian was rescued by a friend. After a brief stay at a local hospital he was released.
- A high school chemistry teacher spilled a one quarter pound bottle of bromine in a wooden box. He was overcome by the vapor and had to be hospitalized. He returned to work six months later and suffered a 20% loss of lung capacity from the incident.
- Students in a high school chemistry class were studying the difference between mixtures and compounds. In the first part of the lab sulfur was mixed with iron and the sulfur was removed by dissolving the sulfur in carbon disulfide. In the second part of the lab iron and sulfur were mixed in the correct proportions to make iron sulfide. The sample was heated to bring about the desired reaction. Unfortunately some of the students were much faster than others and the two parts of the experiment were occurring at the same time. One student placed her solution of sulfur and carbon disulfide in the chemical crock and put the cover back on. Shortly thereafter a second student placed a hot test tube in the crock. The resulting explosion sent broken glass flying in all directions. Fortunately all the students were wearing goggles and no one was hurt.
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